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FFMTIMIT
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Abstract:
FFMTIMIT contains the previously unreleased secondary microphone waveforms for TIMIT Acoustic-Phonetic Continuous Speech. The primary microphone waveforms, which were recorded using a close-talking noise-cancelling head-mounted Sennheiser microphone (model HMD-414), are available from LDC on NIST Speech Disc 1-1.1 (LDC93S1). The secondary microphone used in the recording of the TIMIT corpus was a Breul & Kjaer (B&K) 1/2" free-field microphone (model 4165). While the Sennheiser microphone recordings are relatively "clean" with respect to non-speech noise, the FFMTIMIT recordings include significant low frequency noise, which was due to the HVAC system and mechanical vibration transmitted through the floor of the double-walled sound booth used in recording. Because it is noiser than its TIMIT counterpart, the data of FFMTIMIT may be used in the development of more noise-robust speech recognition systems. In addition, this data may be of value to researchers involved in vocal tract modeling because the B&K microphone has extremely flat free-field frequency response and calibration tones are provided. Note that the B&K TIMIT data contained with this release has not been processed through any highpass filter, (e.g., the 1,581-point filter described in the paper "The DARPA Speech Recognition Research Database" by Fisher, Doddington and Goudie-Marshall in "DARPA TIMIT Acoustic-Phonetic Continuous Speech Corpus CD-ROM," NISTIR 4930 / NTIS Order No. PB93- 173938.)
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URL: https://catalog.ldc.upenn.edu/LDC96S32
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TIMIT Acoustic-Phonetic Continuous Speech (MS-WAV version)
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TIMIT Acoustic-Phonetic Continuous Speech (MS-WAV version) ...
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Dragon Systems Resource Management Benchmark Results -February 1991
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In: DTIC (1991)
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Towards a multimedia knowledge-based agent with social competence and human interaction capabilities
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