Noisy TIMIT Speech

Version 2.0

Abdulaziz, Azhar; Kepuska, Veton, 2017, "Noisy TIMIT Speech", https://hdl.handle.net/11272.1/AB2/FFFXT2, Abacus Data Network, V2

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Description	Introduction Noisy TIMIT Speech was developed by the Florida Institute of Technology and contains approximately 322 hours of speech from the TIMIT Acoustic-Phonetic Continuous Speech Corpus (LDC93S1) modified with different additive noise levels. Only the audio has been modified; the original arrangement of the TIMIT corpus is still as described by the TIMIT documentation. Data The additive noise are white, pink, blue, red, violet and babble noise with noise levels varying in 5 dB (decibel) steps and ranges from 5 to 50 dB. The color of noise refers to the power spectrum of a noise signal. Sound waves have two characteristics: frequency, which describes how fast the waveform vibrates per second; and amplitude, the size of the waveform. Colored noises are named in an analogy to the colors of light. For instance, white noise contains all audible frequencies just as white light contains all frequencies in the visible range. Non-white colored noises have more energy concentrated at the high or low end of the sound spectrum. White, pink and blue noise are officially defined in the federal telecommunications standard. The white, pink, blue, red and violet noise types added to the TIMIT data in this release were generated artificially using MATLAB. For the babble noise, a random segment of recorded babble speech was selected and scaled relative to the power of the original TIMIT audio signal. All audio files are presented as single channel 16kHz 16-flac. (017-03-17)
Subject	Other
Keyword	Linguistics

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Citation Metadata

Dataset Persistent ID	hdl:11272.1/AB2/FFFXT2
Publication Date	2017-03-17
Citation Date
Title	Noisy TIMIT Speech
Other ID	Linguistic Data Consortium: LDC2017S04 ISBN: 1-58563-793-9 ISLRN: 107-834-092-668-3
Author	Abdulaziz, Azhar Kepuska, Veton
Contact	Use email button above to contact. Abacus support
Description	Introduction Noisy TIMIT Speech was developed by the Florida Institute of Technology and contains approximately 322 hours of speech from the TIMIT Acoustic-Phonetic Continuous Speech Corpus (LDC93S1) modified with different additive noise levels. Only the audio has been modified; the original arrangement of the TIMIT corpus is still as described by the TIMIT documentation. Data The additive noise are white, pink, blue, red, violet and babble noise with noise levels varying in 5 dB (decibel) steps and ranges from 5 to 50 dB. The color of noise refers to the power spectrum of a noise signal. Sound waves have two characteristics: frequency, which describes how fast the waveform vibrates per second; and amplitude, the size of the waveform. Colored noises are named in an analogy to the colors of light. For instance, white noise contains all audible frequencies just as white light contains all frequencies in the visible range. Non-white colored noises have more energy concentrated at the high or low end of the sound spectrum. White, pink and blue noise are officially defined in the federal telecommunications standard. The white, pink, blue, red and violet noise types added to the TIMIT data in this release were generated artificially using MATLAB. For the babble noise, a random segment of recorded babble speech was selected and scaled relative to the power of the original TIMIT audio signal. All audio files are presented as single channel 16kHz 16-flac. (017-03-17)
Subject	Other
Keyword	Linguistics (ACV)
Producer	Linguistic Data Consortium (University of Pennsylvania) (LDC) https://www.ldc.upenn.edu/
Production Date	2017-03-17
Production Place	Philadelphia
Distributor	Linguistic Data Consortium (University of Pennsylvania) (LDC) https://www.ldc.upenn.edu/
Deposit Date	2017-03-31
Kind of Data	Linguistic data
Series	LDC: Linguistic Data Consortium
Related Material	TIMIT was designed to provide speech data for acoustic-phonetic studies and for the development and evaluation of automatic speech recognition systems. Since its release in 1993, several corpora have been developed using the TIMIT database: NTIMIT (LDC93S2): transmitting TIMIT recordings through a telephone handset and over various channels in the NYNEX telephone network CTIMIT (LDC96S30): passing TIMIT files through cellular telephone circuits FFMTIMIT (LDC96S32): re-recording TIMIT files with a free-field microphone HTIMIT (LDC98S67): re-recording a subset of TIMIT files through different telephone handsets STC-TIMIT (LDC2008S03): passing TIMIT files through an actual telephone channel in a single call WTIMIT 1.0 (LDC2010S02): wideband mobile telephony TIMIT version
Data Sources	Microphone speech

Geospatial Metadata

Geographic Coverage	United States

Social Science and Humanities Metadata

Study Level Error Notes	DCMI type: SoundSample type: flacSample rate: 16000Application: Speech recognitionLanguage: EnglishLanguage ID: eng Previous handle https://hdl.handle.net/11272/UFA9N has been deprecated

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