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nvidia
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hifitts-2

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1
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The full dataset viewer is not available (click to read why). Only showing a preview of the rows.
The dataset generation failed because of a cast error
Error code:   DatasetGenerationCastError
Exception:    DatasetGenerationCastError
Message:      An error occurred while generating the dataset

All the data files must have the same columns, but at some point there are 3 new columns ({'chapter_filepath', 'url', 'utterances'}) and 10 missing columns ({'speaker_count', 'set', 'duration', 'text_source', 'wer', 'speaker', 'cer', 'text', 'normalized_text', 'audio_filepath'}).

This happened while the json dataset builder was generating data using

hf://datasets/nvidia/hifitts-2/22khz/chapters_22khz.json (at revision 819351ab782fadafaf6daa09134f00dff5051b2a)

Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1871, in _prepare_split_single
                  writer.write_table(table)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 643, in write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2293, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2241, in cast_table_to_schema
                  raise CastError(
              datasets.table.CastError: Couldn't cast
              url: string
              chapter_filepath: string
              bandwidth: int64
              utterances: list<item: struct<audio_filepath: string, offset: double, duration: double>>
                child 0, item: struct<audio_filepath: string, offset: double, duration: double>
                    child 0, audio_filepath: string
                    child 1, offset: double
                    child 2, duration: double
              to
              {'audio_filepath': Value(dtype='string', id=None), 'speaker': Value(dtype='string', id=None), 'set': Value(dtype='string', id=None), 'duration': Value(dtype='float64', id=None), 'bandwidth': Value(dtype='int64', id=None), 'speaker_count': Value(dtype='int64', id=None), 'wer': Value(dtype='float64', id=None), 'cer': Value(dtype='float64', id=None), 'text_source': Value(dtype='string', id=None), 'text': Value(dtype='string', id=None), 'normalized_text': Value(dtype='string', id=None)}
              because column names don't match
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1431, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 992, in stream_convert_to_parquet
                  builder._prepare_split(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1742, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1873, in _prepare_split_single
                  raise DatasetGenerationCastError.from_cast_error(
              datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
              
              All the data files must have the same columns, but at some point there are 3 new columns ({'chapter_filepath', 'url', 'utterances'}) and 10 missing columns ({'speaker_count', 'set', 'duration', 'text_source', 'wer', 'speaker', 'cer', 'text', 'normalized_text', 'audio_filepath'}).
              
              This happened while the json dataset builder was generating data using
              
              hf://datasets/nvidia/hifitts-2/22khz/chapters_22khz.json (at revision 819351ab782fadafaf6daa09134f00dff5051b2a)
              
              Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

audio_filepath
string
speaker
string
set
string
duration
float64
bandwidth
int64
speaker_count
int64
wer
float64
cer
float64
text_source
string
text
string
normalized_text
string
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_0.flac
14
train
11.94
16,451
1
0.062
0.012
mls
knit one knit two together knit three make one and repeat second row seamed third row
Knit one, knit, two together, knit three make one and repeat second row, seamed third row.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_1.flac
14
train
16.28
16,451
1
0.08
0.031
mls
knit two make one knit two knit two together knit one knit two together knit two make one knit one and repeat fourth row seamed
Knit two make one knit, two, knit, two together, knit, one knit two together, knit two make one knit one and repeat fourth row seamed.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_2.flac
14
train
18.62
16,451
1
0.074
0.022
mls
fifth row knit three make one knit one knit two together knit one knit two together knit one make one knit two and repeat sixth row seamed
Fifth row knit three make one knit, one knit, two together, knit, one knit two together knit, one make one knit two, and repeat sixth row seamed.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_3.flac
14
train
15.79
16,451
1
0.087
0.016
mls
seventh row knit four make one knit two together knit one knit two together make one knit three and repeat eighth row seamed
Seventh row knit four, make one knit, two together, knit, one knit two together, make one knit three and repeat, eighth row seamed.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_4.flac
14
train
17.39
16,451
1
0.04
0.007
mls
tenth row seamed eleventh row knit one knit two together knit three make one knit one make one knit three knit two together and repeat
Tenth row, seamed, Eleventh row knit one knit, two together, knit three make one knit, one make one knit, three, knit two together and repeat.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_5.flac
14
train
16.93
16,451
1
0.08
0.015
mls
twelfth row seamed thirteenth row knit one knit two together knit two make one knit three make one knit two knit two together and repeat
Twelfth row, seamed, Thirteenth row, knit one knit, two together, knit two make one knit, three, make one knit, two knit two together and repeat.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_6.flac
14
train
17.15
16,451
1
0.08
0.022
mls
fourteenth row seamed fifteenth row knit one knit two together knit one make one knit five make one knit one knit two together and repeat
Fourteenth row, seamed, Fifteenth row knit one knit two together, knit, one make one knit, five, make one knit, one knit two together and repeat.
14/1503/14_1503_exercises_in_knitting_0902_librivox-exercisesinknitting_11_mee_7.flac
14
train
17.82
16,451
1
0.125
0.042
mls
sixteenth row seamed seventeenth row knit one knit two together make one knit seven make one knit two together and repeat eighteenth row seamed
Sixteenth row seamed, Seventeenth row, knit one knit two together, make one knit, seven, make one knit two together, and repeat eighteenth row seamed.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_0.flac
16
train
17
16,537
1
0.019
0.006
book
The generous commendations of the first volume by the Press, and by private correspondents whose position makes their approval of value, have confirmed the author in his purpose to write a series of stories intended to illustrate the life and experiences of the friendless and vagrant children to be found in all our cities,
The generous commendations of the first volume by the Press, and by private correspondents whose position makes their approval of value, have confirmed the author in his purpose to write a series of stories intended to illustrate the life and experiences of the friendless and vagrant children to be found in all our cities,
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_1.flac
16
train
3.6
16,537
1
0
0
book
numbering in New York alone over twelve thousand.
numbering in New York alone over twelve thousand.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_2.flac
16
train
15.25
16,537
1
0
0
book
In the preparation of the different volumes, the requisite information will be gathered from personal observation mainly, supplemented, however, by facts communicated by those who have been brought into practical relations with the class of children whose lives are portrayed.
In the preparation of the different volumes, the requisite information will be gathered from personal observation mainly, supplemented, however, by facts communicated by those who have been brought into practical relations with the class of children whose lives are portrayed.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_3.flac
16
train
18.67
16,537
1
0.079
0.015
book
The volumes might readily be made more matter of-fact, but the author has sought to depict the inner life and represent the feelings and emotions of these little waifs of city life, and hopes thus to excite a deeper and more widespread sympathy in the public mind, as well as to exert a salutary influence upon the class of whom he is writing,
The volumes might readily be made more matter of-fact, but the author has sought to depict the inner life and represent the feelings and emotions of these little waifs of city life, and hopes thus to excite a deeper and more widespread sympathy in the public mind, as well as to exert a salutary influence upon the class of whom he is writing,
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_4.flac
16
train
7.52
16,537
1
0
0
book
by setting before them inspiring examples of what energy, ambition, and an honest purpose may achieve, even in their case.
by setting before them inspiring examples of what energy, ambition, and an honest purpose may achieve, even in their case.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_5.flac
16
train
5.78
16,537
1
0
0
book
In order to reach as large a number of these boys as possible, the publisher is authorized, on application,
In order to reach as large a number of these boys as possible, the publisher is authorized, on application,
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_6.flac
16
train
16.87
16,537
1
0.103
0.021
mls
to send a gratuitous copy of the two volumes of the ragged dick series already issued to any regularly organized newsboys lodge within the united states new york december eighteen sixty eight chapter i a boarding-house in bleecker street
To send a gratuitous copy of the two volumes of the Ragged Dick series already issued to any regularly organized newsboys lodge within the United States, New York, December eighteen, sixty eight, Chapter I a boarding-house in Bleecker Street.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_7.flac
16
train
7.92
16,537
1
0
0
book
Well, Fosdick, this is a little better than our old room in Mott Street," said Richard Hunter, looking complacently about him.
Well, Fosdick, this is a little better than our old room in Mott Street," said Richard Hunter, looking complacently about him.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_8.flac
16
train
6.64
16,537
1
0
0
book
"You're right, Dick," said his friend. "This carpet's rather nicer than the ragged one Mrs. Mooney supplied us with.
"You're right, Dick," said his friend. "This carpet's rather nicer than the ragged one misses Mooney supplied us with.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_9.flac
16
train
13.71
16,537
1
0
0
book
The beds are neat and comfortable, and I feel better satisfied, even if we do have to pay twice as much for it." The room which yielded so much satisfaction to the two boys was on the fourth floor of a boarding house in Bleecker Street.
The beds are neat and comfortable, and I feel better satisfied, even if we do have to pay twice as much for it." The room which yielded so much satisfaction to the two boys was on the fourth floor of a boarding house in Bleecker Street.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_10.flac
16
train
9.88
16,537
1
0
0
book
No doubt many of my young readers, who are accustomed to elegant homes, would think it very plain; but neither Richard nor his friend had been used to anything as good.
No doubt many of my young readers, who are accustomed to elegant homes, would think it very plain; but neither Richard nor his friend had been used to anything as good.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_11.flac
16
train
6.4
16,537
1
0
0
book
They had been thrown upon their own exertions at an early age, and had a hard battle to fight with poverty and ignorance.
They had been thrown upon their own exertions at an early age, and had a hard battle to fight with poverty and ignorance.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_12.flac
16
train
10.88
16,537
1
0
0
book
Those of my readers who are familiar with Richard Hunter's experiences when he was "Ragged Dick," will easily understand what a great rise in the world it was for him to have a really respectable home.
Those of my readers who are familiar with Richard Hunter's experiences when he was "Ragged Dick," will easily understand what a great rise in the world it was for him to have a really respectable home.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_13.flac
16
train
9.4
16,537
1
0.103
0.034
book
For years he had led a vagabond life about the streets, as a boot black, sleeping in old wagons, or boxes, or wherever he could find a lodging gratis.
For years he had led a vagabond life about the streets, as a boot black, sleeping in old wagons, or boxes, or wherever he could find a lodging gratis.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_14.flac
16
train
7.51
16,537
1
0
0
book
It was only twelve months since a chance meeting with an intelligent boy caused him to form the resolution to grow up respectable.
It was only twelve months since a chance meeting with an intelligent boy caused him to form the resolution to grow up respectable.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_15.flac
16
train
17.56
16,537
1
0
0
book
By diligent evening study with Henry Fosdick, whose advantages had been much greater than his own, assisted by a natural quickness and an unusual aptitude for learning, he had, in a year, learned to read and write well, and had, besides, made considerable progress in arithmetic.
By diligent evening study with Henry Fosdick, whose advantages had been much greater than his own, assisted by a natural quickness and an unusual aptitude for learning, he had, in a year, learned to read and write well, and had, besides, made considerable progress in arithmetic.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_16.flac
16
train
12.1
16,537
1
0
0
book
Still he would have found it difficult to obtain a situation if he had not been the means of saving from drowning the young child of Mr. James Rockwell, a wealthy merchant in business on Pearl Street,
Still he would have found it difficult to obtain a situation if he had not been the means of saving from drowning the young child of mister James Rockwell, a wealthy merchant in business on Pearl Street,
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_17.flac
16
train
10.72
16,537
1
0
0
book
who at once, out of gratitude for the service rendered, engaged our hero in his employ at the unusual compensation, for a beginner, of ten dollars a week.
who at once, out of gratitude for the service rendered, engaged our hero in his employ at the unusual compensation, for a beginner, of ten dollars a week.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_18.flac
16
train
7.34
16,537
1
0
0
book
His friend, Henry Fosdick, was in a hat store on Broadway, but thus far only received six dollars a week.
His friend, Henry Fosdick, was in a hat store on Broadway, but thus far only received six dollars a week.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_19.flac
16
train
9.52
16,537
1
0
0
book
Feeling that it was time to change their quarters to a more respectable portion of the city, they one morning rang the bell of Mrs. Browning's boarding house, on Bleecker Street.
Feeling that it was time to change their quarters to a more respectable portion of the city, they one morning rang the bell of misses Browning's boarding house, on Bleecker Street.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_20.flac
16
train
6.27
16,537
1
0.05
0.01
book
They were shown into the parlor, and soon a tall lady, with flaxen ringlets and a thin face, came in.
They were shown into the parlor, and soon a tall lady, with flaxen ringlets and a thin face, came in.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_21.flac
16
train
6.64
16,537
1
0.071
0.013
book
Well, young gentleman, what can I do for you?" she said, regarding them attentively.
Well, young gentleman, what can I do for you?" she said, regarding them attentively.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_22.flac
16
train
6.1
16,537
1
0
0
book
"My friend and I are looking for a boarding place," said Henry Fosdick. "Have you any rooms vacant?"
"My friend and I are looking for a boarding place," said Henry Fosdick. "Have you any rooms vacant?"
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_23.flac
16
train
4.08
16,537
1
0.091
0.036
book
What sort of a room would you like?" asked Mrs. Browning.
What sort of a room would you like?" asked misses Browning.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_24.flac
16
train
10.06
16,537
1
0
0
book
"We cannot afford to pay a high price. We should be satisfied with a small room." "You will room together, I suppose?" "Yes, ma'am."
"We cannot afford to pay a high price. We should be satisfied with a small room." "You will room together, I suppose?" "Yes, ma'am."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_25.flac
16
train
18.98
16,537
1
0
0
book
I have a room vacant on the third floor, quite a good sized one, for which I should charge you seven dollars apiece. There is a room on the fourth floor, not so large, which you can have for five dollars each." "I think we'll look at that," said Richard Hunter. "Very well, then follow me."
I have a room vacant on the third floor, quite a good sized one, for which I should charge you seven dollars apiece. There is a room on the fourth floor, not so large, which you can have for five dollars each." "I think we'll look at that," said Richard Hunter. "Very well, then follow me."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_26.flac
16
train
15.19
16,537
1
0.024
0.005
book
Mrs. Browning preceded the boys to the fourth floor, where she opened the door of a neat room, provided with two single beds, a good sized mirror, a bureau, a warm woollen carpet, a washstand, and an empty bookcase for books.
misses Browning preceded the boys to the fourth floor, where she opened the door of a neat room, provided with two single beds, a good sized mirror, a bureau, a warm woollen carpet, a washstand, and an empty bookcase for books.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_27.flac
16
train
6.36
16,537
1
0
0
book
There was a closet also, the door of which she opened, showing a row of pegs for clothing.
There was a closet also, the door of which she opened, showing a row of pegs for clothing.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_28.flac
16
train
9.95
16,537
1
0
0
book
"How do you like it?" asked Fosdick, in a low voice, turning to his companion. "It's bully," said Dick, in admiring accents.
"How do you like it?" asked Fosdick, in a low voice, turning to his companion. "It's bully," said Dick, in admiring accents.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_29.flac
16
train
15.38
16,537
1
0
0
book
I may as well say here, what the reader will find out as we proceed, that our hero, in spite of his advance in learning, had not got entirely rid of some street phrases, which he had caught from the companions with whom he had for years associated.
I may as well say here, what the reader will find out as we proceed, that our hero, in spite of his advance in learning, had not got entirely rid of some street phrases, which he had caught from the companions with whom he had for years associated.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_30.flac
16
train
17.98
16,537
1
0.039
0.022
book
Five dollars is rather a steep price," said Fosdick, in a low voice. "You know I don't get but six in all." "I'll tell you what, Fosdick," said Dick; "it'll be ten dollars for the two of us. I'll pay six, and you shall pay four. That'll be fair, - won't it?"
Five dollars is rather a steep price," said Fosdick, in a low voice. "You know I don't get but six in all." "I'll tell you what, Fosdick," said Dick; "it'll be ten dollars for the two of us. I'll pay six, and you shall pay four. That'll be fair, - won't it?"
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_31.flac
16
train
10.98
16,537
1
0
0
book
No, Dick, I ought to pay my half." "You can make it up by helpin' me when I run against a snag, in my studies." "You know as much as I do now, Dick."
No, Dick, I ought to pay my half." "You can make it up by helpin' me when I run against a snag, in my studies." "You know as much as I do now, Dick."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_32.flac
16
train
4.36
16,537
1
0.077
0.016
book
No, I don't. I haven't any more ideas of grammar than a broomstick.
No, I don't. I haven't any more ideas of grammar than a broomstick.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_33.flac
16
train
11.49
16,537
1
0
0
book
You know I called 'cat' a conjunction the other day. Now, you shall help me in grammar, for I'm blessed if I know whether I'm a noun or an adjective, and I'll pay a dollar towards your board."
You know I called 'cat' a conjunction the other day. Now, you shall help me in grammar, for I'm blessed if I know whether I'm a noun or an adjective, and I'll pay a dollar towards your board."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_34.flac
16
train
3.48
16,537
1
0
0
book
But, Dick, I'm willing to help you for nothing.
But, Dick, I'm willing to help you for nothing.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_35.flac
16
train
15.13
16,537
1
0
0
book
It isn't fair to charge you a dollar a week for my help." "Why isn't it? Aint I to get ten dollars a week, and shan't I have four dollars over, while you will only have two? I think I ought to give you one more, and then we'd be even."
It isn't fair to charge you a dollar a week for my help." "Why isn't it? Aint I to get ten dollars a week, and shan't I have four dollars over, while you will only have two? I think I ought to give you one more, and then we'd be even."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_36.flac
16
train
17.52
16,537
1
0.064
0.018
mls
no dick i wouldn't agree to that if you insist upon it we'll do as you propose but if ever i am able i will make it up to you well young gentleman what have you decided asked mrs browning we'll take the room said dick promptly
No dick. I wouldn't agree to that. if you insist upon it, we'll do as you propose, but if ever I am able, I will make it up to you, well young gentleman. What have you decided? asked misses Browning. we'll take the room, said Dick promptly.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_37.flac
16
train
6.36
16,537
1
0
0
book
When do you wish to commence?" "To day. We'll come this evening." "Very well.
When do you wish to commence?" "To day. We'll come this evening." "Very well.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_38.flac
16
train
5.34
16,537
1
0.077
0.028
book
I suppose you can furnish me with references. You're in business, I suppose?"
I suppose you can furnish me with references. You're in business, I suppose?"
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_39.flac
16
train
13.84
16,537
1
0.091
0.063
book
I am in Henderson's hat and cap store, No. - - Broadway," said Henry Fosdick. "And I am going into Rockwell & Cooper's, on Pearl Street, next Monday," said Dick, with a sense of importance.
I am in Henderson's hat and cap store, No. - - Broadway," said Henry Fosdick. "And I am going into Rockwell and Cooper's, on Pearl Street, next Monday," said Dick, with a sense of importance.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_40.flac
16
train
5.01
16,537
1
0
0
book
He felt that this was very different from saying, "I black boots in Chatham Square."
He felt that this was very different from saying, "I black boots in Chatham Square."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_41.flac
16
train
10.04
16,537
1
0.071
0.035
book
You look like good boys," said Mrs. Browning, "and I've no doubt you're honest; but I'm a widow, dependent on my boarders, and I have to be particular.
You look like good boys," said misses Browning, "and I've no doubt you're honest; but I'm a widow, dependent on my boarders, and I have to be particular.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_42.flac
16
train
7.13
16,537
1
0
0
book
Only last week a young man went off, owing me four weeks' board, and I don't suppose he'll ever show his face again.
Only last week a young man went off, owing me four weeks' board, and I don't suppose he'll ever show his face again.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_43.flac
16
train
15.51
16,537
1
0.047
0.01
book
He got a good salary, too; but he spent most of it on cigars and billiards. Now, how can I be sure you will pay me your board regular?" "We'll pay it every week in advance," said Dick, promptly. "Them's our best references,"
He got a good salary, too; but he spent most of it on cigars and billiards. Now, how can I be sure you will pay me your board regular?" "We'll pay it every week in advance," said Dick, promptly. "Them's our best references,"
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_44.flac
16
train
9.88
16,537
1
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0.013
book
and he produced his bank book, showing a deposit of over one hundred dollars to his credit in the savings bank, motioning at the same time to Fosdick to show his.
and he produced his bank book, showing a deposit of over one hundred dollars to his credit in the savings bank, motioning at the same time to Fosdick to show his.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_45.flac
16
train
6.09
16,537
1
0
0
book
"You don't mean to say you've saved all that from your earnings?" said Mrs. Browning, surprised.
"You don't mean to say you've saved all that from your earnings?" said misses Browning, surprised.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_46.flac
16
train
9.92
16,537
1
0.038
0.025
book
Yes," said Dick, "and I might have saved more if I'd begun sooner." "How long has it taken you to save it up?" "About nine months.
Yes," said Dick, "and I might have saved more if I'd begun sooner." "How long has it taken you to save it up?" "About nine months.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_47.flac
16
train
4.23
16,537
1
0
0
book
My friend hasn't saved so much, because his salary has been smaller."
My friend hasn't saved so much, because his salary has been smaller."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_48.flac
16
train
6.84
16,537
1
0
0
book
I won't require you to pay in advance," said Mrs. Browning, graciously. "I am sure I can trust you.
I won't require you to pay in advance," said misses Browning, graciously. "I am sure I can trust you.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_49.flac
16
train
4.37
16,537
1
0
0
book
Boys who have formed so good a habit of saving can be depended upon.
Boys who have formed so good a habit of saving can be depended upon.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_50.flac
16
train
10.44
16,537
1
0.031
0.026
book
I will get the room ready for you, and you may bring your trunks when you please. My hours are, breakfast at seven, lunch at half past twelve, and dinner at six."
I will get the room ready for you, and you may bring your trunks when you please. My hours are, breakfast at seven, lunch at half past twelve, and dinner at six."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_51.flac
16
train
12.26
16,537
1
0
0
book
We shan't be able to come to lunch," said Fosdick. "Our stores are too far off." "Then I will make half a dollar difference with each of you, making nine dollars a week instead of ten."
We shan't be able to come to lunch," said Fosdick. "Our stores are too far off." "Then I will make half a dollar difference with each of you, making nine dollars a week instead of ten."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_52.flac
16
train
4.64
16,537
1
0
0
book
The boys went downstairs, well pleased with the arrangement they had made.
The boys went downstairs, well pleased with the arrangement they had made.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_53.flac
16
train
6.47
16,537
1
0
0
book
Dick insisted upon paying five dollars and a half of the joint weekly expense, leaving three and a half to Fosdick.
Dick insisted upon paying five dollars and a half of the joint weekly expense, leaving three and a half to Fosdick.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_54.flac
16
train
6.24
16,537
1
0
0
book
This would leave the latter two dollars and a half out of his salary, while Dick would have left four and a half.
This would leave the latter two dollars and a half out of his salary, while Dick would have left four and a half.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_55.flac
16
train
3.97
16,537
1
0.1
0.182
book
With economy, both thought they could continue to lay up
With economy, both thought they could continue to lay up
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_56.flac
16
train
14.13
16,537
1
0.023
0.004
book
There was one little embarrassment which suggested itself to the boys. Neither of them had a trunk, having been able to stow away all their wardrobe without difficulty in the drawers of the bureau with which their room in Mott Street was provided.
There was one little embarrassment which suggested itself to the boys. Neither of them had a trunk, having been able to stow away all their wardrobe without difficulty in the drawers of the bureau with which their room in Mott Street was provided.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_57.flac
16
train
6.16
16,537
1
0
0
book
Why are you like an elephant, Fosdick?" asked Dick, jocosely, as they emerged into the street.
Why are you like an elephant, Fosdick?" asked Dick, jocosely, as they emerged into the street.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_58.flac
16
train
6.83
16,537
1
0.056
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book
"I don't know, I'm sure." "Because you haven't got any trunk except what you carry round with you."
"I don't know, I'm sure." "Because you haven't got any trunk except what you carry round with you."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_59.flac
16
train
16.12
16,537
1
0.081
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book
We'll have to get trunks, or perhaps carpet bags would do." "No," said Dick, decisively, "it aint 'spectable to be without a trunk, and we're going to be 'spectable now." " Re spectable, Dick." "All right, - respectable, then.
We'll have to get trunks, or perhaps carpet bags would do." "No," said Dick, decisively, "it aint 'spectable to be without a trunk, and we're going to be 'spectable now." " Re spectable, Dick." "All right, - respectable, then.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_60.flac
16
train
2.34
16,537
1
0
0
book
Let's go and buy each a trunk."
Let's go and buy each a trunk."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_61.flac
16
train
4.4
16,537
1
0.111
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book
This advice seemed reasonable, and Fosdick made no objection.
This advice seemed reasonable, and Fosdick made no objection.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_62.flac
16
train
6.51
16,537
1
0
0
book
The boys succeeded in getting two decent trunks at three dollars apiece, and ordered them sent to their room in Mott Street.
The boys succeeded in getting two decent trunks at three dollars apiece, and ordered them sent to their room in Mott Street.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_63.flac
16
train
12.53
16,537
1
0
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book
It must be remembered by my readers, who may regard the prices given as too low, that the events here recorded took place several years before the war, when one dollar was equal to two at the present day.
It must be remembered by my readers, who may regard the prices given as too low, that the events here recorded took place several years before the war, when one dollar was equal to two at the present day.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_64.flac
16
train
10.4
16,537
1
0
0
mls
at the close of the afternoon fosdick got away from the store an hour earlier and the boys preceded by an expressman bearing their trunks went to their new home
At the close of the afternoon, Fosdick got away from the store an hour earlier, and the boys preceded by an expressman bearing their trunks went to their new home.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_65.flac
16
train
6.13
16,537
1
0.087
0.009
mls
they had just time to wash and comb their hair when the bell rang for dinner and they went down to the dining-room
They had just time to wash and comb their hair when the bell rang for dinner, and they went down to the dining-room
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_66.flac
16
train
6.72
16,537
1
0
0
book
Nearly all the boarders were assembled, and were sitting around a long table spread with a variety of dishes.
Nearly all the boarders were assembled, and were sitting around a long table spread with a variety of dishes.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_67.flac
16
train
5.8
16,537
1
0.048
0.037
book
Mrs. Browning was a good manager, and was wise enough to set a table to which her boarders could not object.
misses Browning was a good manager, and was wise enough to set a table to which her boarders could not object.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_68.flac
16
train
7.6
16,537
1
0.048
0.009
book
This way, if you please, young gentlemen," she said, pointing to two adjoining seats on the opposite side of the table.
This way, if you please, young gentlemen," she said, pointing to two adjoining seats on the opposite side of the table.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_69.flac
16
train
9.85
16,537
1
0
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book
Our hero, it must be confessed, felt a little awkward, not being used to the formality of a boarding house, and feeling that the eyes of twenty boarders were upon him.
Our hero, it must be confessed, felt a little awkward, not being used to the formality of a boarding house, and feeling that the eyes of twenty boarders were upon him.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_70.flac
16
train
10.2
16,537
1
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book
His confusion was increased, when, after taking his seat, he saw sitting opposite him, a young man whose boots he remembered to have blacked only a week before.
His confusion was increased, when, after taking his seat, he saw sitting opposite him, a young man whose boots he remembered to have blacked only a week before.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_71.flac
16
train
4.7
16,537
1
0
0
book
Observing Dick's look, Mrs. Browning proceeded to introduce him to the other.
Observing Dick's look, misses Browning proceeded to introduce him to the other.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_72.flac
16
train
14.87
16,537
1
0.056
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book
Mr. Clifton," she said, "let me introduce Mr. Hunter and his friend, Mr. Fosdick, - two new members of our family." Dick bowed rather awkwardly, and the young man said, "Glad to make your acquaintance, Mr. Hunter.
mister Clifton," she said, "let me introduce mister Hunter and his friend, mister Fosdick, - two new members of our family." Dick bowed rather awkwardly, and the young man said, "Glad to make your acquaintance, mister Hunter.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_73.flac
16
train
2.72
16,537
1
0
0
book
Your face looks quite familiar.
Your face looks quite familiar.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_74.flac
16
train
11.37
16,537
1
0
0
book
I think I must have seen you before." "I think I've seen you before," said Dick. "It's strange I can't think where," said the young man,
I think I must have seen you before." "I think I've seen you before," said Dick. "It's strange I can't think where," said the young man,
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_75.flac
16
train
8.12
16,537
1
0.069
0.007
book
who had not the least idea that the well dressed boy before him was the boot black who had brushed his boots near the Park railings the Monday previous.
who had not the least idea that the well dressed boy before him was the boot black who had brushed his boots near the Park railings the Monday previous.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_76.flac
16
train
2.79
16,537
1
0
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book
Dick did not think proper to enlighten him.
Dick did not think proper to enlighten him.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_77.flac
16
train
13.69
16,537
1
0
0
book
He was not ashamed of his past occupation; but it was past, and he wanted to be valued for what he might become, not for what he had been. "Are you in business, Mr. Hunter?" inquired Mr. Clifton.
He was not ashamed of his past occupation; but it was past, and he wanted to be valued for what he might become, not for what he had been. "Are you in business, mister Hunter?" inquired mister Clifton.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_78.flac
16
train
7.56
16,537
1
0
0
book
It sounded strange to our hero to be called Mr. Hunter; but he rather liked it. He felt that it sounded respectable.
It sounded strange to our hero to be called mister Hunter; but he rather liked it. He felt that it sounded respectable.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_79.flac
16
train
7.2
16,537
1
0
0
book
"I am at Rockwell & Cooper's, on Pearl Street," said Dick. "I know the place. It is a large firm."
"I am at Rockwell and Cooper's, on Pearl Street," said Dick. "I know the place. It is a large firm."
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_80.flac
16
train
4.68
16,537
1
0
0
book
Dick was glad to hear it, but did not say that he knew nothing about it.
Dick was glad to hear it, but did not say that he knew nothing about it.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_81.flac
16
train
7.55
16,537
1
0
0
book
The dinner was a good one, much better than the two boys were accustomed to get at the eating houses which in times past they had frequented.
The dinner was a good one, much better than the two boys were accustomed to get at the eating houses which in times past they had frequented.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_82.flac
16
train
9.88
16,537
1
0
0
book
Dick noticed carefully how the others did, and acquitted himself quite creditably, so that no one probably suspected that he had not always been used to as good a table.
Dick noticed carefully how the others did, and acquitted himself quite creditably, so that no one probably suspected that he had not always been used to as good a table.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_83.flac
16
train
8.88
16,537
1
0.038
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book
When the boys rose from the table, Mrs. Browning said, "Won't you walk into the parlor, young gentlemen? We generally have a little music after dinner.
When the boys rose from the table, misses Browning said, "Won't you walk into the parlor, young gentlemen? We generally have a little music after dinner.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_84.flac
16
train
4.19
16,537
1
0.083
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book
Some of the young ladies are musical. Do either of you play?"
Some of the young ladies are musical. Do either of you play?"
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_85.flac
16
train
7.64
16,537
1
0.105
0.054
book
Dick said he sometimes played marbles; at which a young lady laughed, and Dick, catching the infection, laughed too.
Dick said he sometimes played marbles; at which a young lady laughed, and Dick, catching the infection, laughed too.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_86.flac
16
train
10.88
16,537
1
0.083
0.02
book
"Miss Peyton, Mr. Hunter," introduced Mrs. Browning. Miss Peyton made a sweeping courtesy, to which Dick responded by a bow, turning red with embarrassment.
"Miss Peyton, mister Hunter," introduced misses Browning. Miss Peyton made a sweeping courtesy, to which Dick responded by a bow, turning red with embarrassment.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_87.flac
16
train
9.72
16,537
1
0
0
book
Don't you sing, Mr. Hunter?" asked the young lady. "I aint much on warblin'," said Dick, forgetting for the moment where he was.
Don't you sing, mister Hunter?" asked the young lady. "I aint much on warblin'," said Dick, forgetting for the moment where he was.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_88.flac
16
train
7.3
16,537
1
0
0
book
This droll answer, which Miss Peyton supposed to be intentionally funny, convulsed the young lady with merriment.
This droll answer, which Miss Peyton supposed to be intentionally funny, convulsed the young lady with merriment.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_89.flac
16
train
3.84
16,537
1
0
0
book
Perhaps your friend sings?" she said.
Perhaps your friend sings?" she said.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_90.flac
16
train
6.73
16,537
1
0
0
book
Thereupon Fosdick was also introduced. To Dick's astonishment, he answered that he did a little.
Thereupon Fosdick was also introduced. To Dick's astonishment, he answered that he did a little.
16/1525/16_1525_fame_fortune_0910_librivox-fameandfortune_01_alger_91.flac
16
train
5.2
16,537
1
0
0
book
It was accordingly proposed that they should enter the next room, where there was a piano.
It was accordingly proposed that they should enter the next room, where there was a piano.
End of preview.

HiFiTTS-2: A Large-Scale High Bandwidth Speech Dataset

Dataset Description

This repository contains the metadata for HiFiTTS-2, a large scale speech dataset derived from LibriVox audiobooks. For more details, please refer to our paper.

The dataset contains metadata for approximately 36.7k hours of audio from 5k speakers that can be downloaded from LibriVox at a 48 kHz sampling rate.

The metadata contains estimated bandwidth, which can be used to infer the original sampling rate the audio was recorded at. The base dataset is filtered for a bandwidth appropriate for training speech models at 22 kHz. We also provide a precomputed subset with 31.7k hours appropriate for 44 kHz training. Users can modify the download script to use any sampling rate and bandwidth threshold which might be more appropriate for their work.

LibriVox audiobooks are not redistributed on Hugging Face. All audio in the dataset can be downloaded from LibriVox, following the instructions below.

Dataset Format

The dataset contains an utterance level manifest with these fields:

  • audio_filepath: Relative path where utterance is stored
  • speaker: LibriVox speaker ID
  • set: Dataset partition, either "train", "test_seen", "dev_seen", "test_unseen", or "dev_unseen"
  • duration: Duration of utterance
  • bandwidth: Estimated bandwidth of audiobook chapter containing this utterance
  • speaker_count: Number of speakers detected in this utterance
  • wer: ASR word error rate of normalized_text
  • cer: ASR character error rate of normalized_text
  • text_source: Data source text was taken from, either 'book' or 'mls'
  • text: Original data source transcription
  • normalized_text: Transcription output by text processing pipeline

The dataset contains an audiobook chapter level manifest with these fields:

  • url: Download URL for the LibriVox audiobook chapter
  • chapter_filepath: Relative path where audiobook chapter is stored
  • bandwidth: Bandwidth estimated using the first 30 seconds of the chapter
  • utterances: List of utterance metadata with the following fields
  • utterances.audio_filepath: Relative path where utterance is stored
  • utterances.offset: Offset of utterance within the chapter
  • utterances.duration: Duration of utterance

Download Instructions

  1. Download the manifet.json file and chapter.json files corresponding to your desired sampling rate from this Hugging Face repository. Copy these into a workspace directory (in this example /home/hifitts2).
  2. Install NeMo-speech-data-processor (SDP) using the Installation instructions on https://github.com/NVIDIA/NeMo-speech-data-processor.
  3. Run the SDP script to download the dataset to local disk.
python /home/NeMo-speech-data-processor/main.py \
    --config-path="/home/NeMo-speech-data-processor/dataset_configs/english/hifitts2" \
    --config-name="config_22khz.yaml" \
    workspace_dir="/home/hifitts2" \
    max_workers=8

max_workers is the number of threads to use for downloading the data. To download the 44khz dataset, specify config_44khz.yaml.

Downloading the 22 kHz version will require approximately 3TB of disk space. Downloading the 44 kHz version will require approximately 5TB of disk space.

During download there might be warning messages from "libmpg123". These warnings can be safely ignored.

By default, the script will download audio files into the workspace directory under {workspace_dir}/audio_22khz. The download will ignore HTTP errors and store information for any failed downloads into {workspace_dir}/errors_22khz.json. A new manifest will be created at {worksapce_dir}/manifest_filtered_22khz.json with utterances from failed audiobooks removed. You can override the default behavior by modifying the config.yaml file in your local SDP repository.

If you want to retry the download for failed audiobooks, rerun the script with the output errors_22khz.json file. 

python /home/NeMo-speech-data-processor/main.py \
    --config-path="/home/NeMo-speech-data-processor/dataset_configs/english/hifitts2" \
    --config-name="config_22khz.yaml" \
    workspace_dir="/home/hifitts2" \
    chapter_filename="/home/hifitts2/errors_22khz.json" \
    max_workers=8

Dataset Owner(s)

NVIDIA Corporation

Dataset Creation Date

June 2025

License/Terms of Use

GOVERNING TERMS: This dataset is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0) available at https://creativecommons.org/licenses/by/4.0/legalcode.

Ethical Considerations:

NVIDIA believes Trustworthy AI is a shared responsibility and we have established policies and practices to enable development for a wide array of AI applications. When downloaded or used in accordance with our terms of service, developers should work with their internal model team to ensure this model meets requirements for the relevant industry and use case and addresses unforeseen product misuse.

Please report security vulnerabilities or NVIDIA AI Concerns here.

Citation

If you find this dataset useful, please cite:

@inproceedings{rlangman2025hifitts2,
      title={HiFiTTS-2: A Large-Scale High Bandwidth Speech Dataset}, 
      author={Ryan Langman and Xuesong Yang and Paarth Neekhara and Shehzeen Hussain and Edresson Casanova and Evelina Bakhturina and Jason Li},
      booktitle={Interspeech},
      year={2025},
}
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