ELRA - S0293 : The HIWIRE database, a noisy and non-native English speech corpus for cockpit communication

Home Catalogue

Language Resources

Bug reports

Send us your bug reports.

Search Catalogue

Languages

Informations

Purchase procedure & Conditions

Pricing & user licences

How to promote your resources ?

Catalog Reference : S0293

The HIWIRE database, a noisy and non-native English speech corpus for cockpit communication

This database has been collected and packaged under the auspices of the IST-EU STREP project HIWIRE (Human Input that Works In Real Environments). The database was designed to be used as a tool for development and test of speech processing and recognition techniques dealing with robust non-native speech recognition.

The database contains 8,099 English utterances pronounced by non-native speakers (31 French, 20 Greek, 20 Italian, and 10 Spanish speakers). The collected utterances correspond to human input in a command and control aeronautics application. The data was recorded in studio with a close-talking microphone and real noise recorded in an airplane cockpit was artificially added to the data. The signals are provided in clean (studio recordings with close talking microphone), low, mid and high noise conditions. The three noise levels correspond approximately to signal-to-noise ratios of 10dB, 5dB and -5 dB respectively.

Clean audio data has been recorded in different office rooms using a close-talking microphone for lowest ambient acoustic effects (Plantronics USB-45). The used sampling frequency is 16 kHz and data is stored in Windows PCM WAV 16 bits mono format.

Recordings correspond to prompts extracted from an aeronautic command and control application. A total of 8,099 utterances have been recorded corresponding to 81 speakers pronouncing 100 utterances each. The speaker distribution is as follows:

Country	# Speakers	# Utterances
France	31 (38.3%)	3100
Greece	20 (24.7%)	2000
Italy	20 (24.7%)	2000
Spain	10 (12.3%)	999
Total	81	8099

To generate the noisy data utterances, the speech level is maintained and only the noise amplitude is modified to obtain the desired SNR. The noise amplitude is adjusted to obtain three different averaged SNR values of 10dB, 5dB and -5dB which are referenced as low noise (LN), mid noise (MN) and high noise (HN) conditions. For each given condition the noise level remains constant.

The speech data are pcm-wav files (16kHz / 16 bits / mono) stored on one DVD. The total size is 3.03 Gbytes for 33.053 files.

Production

Project : HIWIRE (Human Input that Works In Real Environments)

Creation date : January 2007

Applications

Applications existing : Speech recognition

Technical Information

Distribution medium : DVD
Fileformat : wav

Contents

Click on the arrow to display content.

speech corpus
Language(s) : English (France) ; English (Greece) ; English (Italy) ; English (Spain)
TEXT_QUANTISATION16 bits
TEXT_SIGNAL_ENCODINGLinear PCM
TEXT_CLIPPING_RATE_PERCENTAGE16 kHz
Source Channel : Microphone
TEXT_SPEECH_ACQUISITION_MODEAcoustic
TEXT_RECORDING_ENVIRONMENTOffice, close-talking microphone (Plantronics USB-45)
TEXT_TASKHuman input in a command and control aeronautics application

Members Prices

Academic - Commercial 2500.00 EUR

Academic - Research 50.00 EUR

Commercial - Commercial 2500.00 EUR

Commercial - Research 50.00 EUR

Non Member Prices

Academic - Commercial 3500.00 EUR

Academic - Research 50.00 EUR

Commercial - Commercial 3500.00 EUR

Commercial - Research 50.00 EUR