| Patents for G10L 21 - Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility (18,985) |
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| 09/14/1994 | EP0615226A2 Method for noise reduction in disturbed voice drannels |
| 09/07/1994 | EP0614171A1 Voice signal processing device |
| 09/07/1994 | EP0614170A1 Voice signal processing device |
| 09/07/1994 | EP0614169A1 Voice signal processing device |
| 08/24/1994 | EP0612059A2 Method for estimating the propagation time in noisy speech channels |
| 08/23/1994 | US5341456 Method for determining speech encoding rate in a variable rate vocoder |
| 08/23/1994 | US5341432 Apparatus and method for performing speech rate modification and improved fidelity |
| 08/23/1994 | US5340316 Synthesis-based speech training system |
| 08/18/1994 | WO1994018669A1 Method of converting speech |
| 08/18/1994 | WO1994018666A1 Noise reduction |
| 08/03/1994 | EP0608833A2 Method of and apparatus for performing time-scale modification of speech signals |
| 08/02/1994 | US5335312 Noise suppressing apparatus and its adjusting apparatus |
| 07/06/1994 | EP0605348A2 Method and system for speech data compression and regeneration |
| 07/05/1994 | US5327521 Speech transformation system |
| 07/05/1994 | US5327518 Audio analysis/synthesis system |
| 06/28/1994 | US5325462 System and method for speech synthesis employing improved formant composition |
| 06/21/1994 | US5323467 Method and apparatus for sound enhancement with envelopes of multiband-passed signals feeding comb filters |
| 06/07/1994 | US5319736 System for separating speech from background noise |
| 06/01/1994 | EP0599132A2 System for processing an audio signal |
| 05/18/1994 | EP0597798A1 Method and system for utilizing audible search patterns within a multimedia presentation |
| 05/17/1994 | US5313555 Lombard voice recognition method and apparatus for recognizing voices in noisy circumstance |
| 05/17/1994 | US5313531 Method and apparatus for speech analysis and speech recognition |
| 05/17/1994 | US5313522 Apparatus for generating from an audio signal a moving visual lip image from which a speech content of the signal can be comprehended by a lipreader |
| 05/11/1994 | EP0596663A2 A high efficiency encoding device and a noise spectrum modifying device and method |
| 05/04/1994 | EP0595457A1 Noise cancellation apparatus |
| 05/03/1994 | CA2014643C Speech coding and decoding apparatus |
| 05/03/1994 | CA1329272C Speech-recognition circuitry employing phoneme estimation |
| 04/30/1994 | CA2109440A1 Noise cancellation apparatus |
| 04/27/1994 | EP0594480A1 Speech detection method |
| 04/26/1994 | US5307442 Method and apparatus for speaker individuality conversion |
| 04/20/1994 | EP0593255A1 An arrangement for demodulating speech signals discontinuously transmitted from a mobile unit |
| 04/19/1994 | US5305423 Computerized system for producing sentic cycles and for generating and communicating emotions |
| 04/19/1994 | US5305422 Method for determining boundaries of isolated words within a speech signal |
| 04/19/1994 | US5305420 Method and apparatus for hearing assistance with speech speed control function |
| 04/13/1994 | CN1085375A Switched signal processing circuit |
| 03/30/1994 | EP0588932A1 Variable rate vocoder |
| 03/16/1994 | EP0586996A2 Speech recognition method with adaptation of the speech characteristics |
| 03/15/1994 | US5295225 Noise signal prediction system |
| 03/09/1994 | EP0585434A1 Filtering method and device for reducing digital audio signal pre-echoes |
| 03/03/1994 | WO1994005006A1 Method and apparatus for attenuating an unwanted signal in a mix of signals |
| 03/03/1994 | DE4328752A1 Speech recognition system for domestic electrical equipment - contains error minimising multilayer neural network |
| 03/02/1994 | EP0584718A1 Switched signal processing circuit |
| 03/01/1994 | CA2005117C Noise reduction system |
| 02/22/1994 | CA2013082C Pitch shift apparatus |
| 02/16/1994 | EP0367803B1 Noise reduction |
| 02/09/1994 | EP0582377A2 Speech Synthesis |
| 02/08/1994 | US5285498 Method and apparatus for coding audio signals based on perceptual model |
| 02/03/1994 | WO1994002070A1 Doppler speech generation method and apparatus |
| 01/26/1994 | CN1081270A Apparatus for displaying of mark of kara OK |
| 01/19/1994 | EP0579152A1 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adapted filtering |
| 01/14/1994 | CA2098679A1 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering |
| 01/12/1994 | EP0578486A2 Audio Storybook |
| 01/11/1994 | US5278910 Apparatus and method for speech signal level change suppression processing |
| 01/11/1994 | CA1326075C Automatic speech recognition using echo cancellation |
| 01/06/1994 | WO1994000085A1 Method and electronic system of the digital corrector of speech for stuttering people |
| 01/05/1994 | EP0577441A2 Apparatus for analyzing speech and acoustical events |
| 12/28/1993 | US5274711 Apparatus and method for modifying a speech waveform to compensate for recruitment of loudness |
| 12/14/1993 | US5271088 Automated sorting of voice messages through speaker spotting |
| 12/09/1993 | DE4318529A1 Application of sec. audio signal for noise suppression in prim. audio signal - filtering sec. signal according to set of coeffts. to generate determined noise signal |
| 12/08/1993 | EP0573358A1 Variable speed voice synthesizer |
| 12/06/1993 | CA2097548A1 Method and device for vocal synthesis at variable speed |
| 11/30/1993 | US5267323 Voice-operated remote control system |
| 11/03/1993 | EP0348396B1 Radio receiver speech amplifier circuit |
| 10/26/1993 | US5257314 Voice recognition system having word frequency and intermediate result display features |
| 10/05/1993 | US5251263 Adaptive noise cancellation and speech enhancement system and apparatus therefor |
| 09/22/1993 | EP0560931A1 Methods for speech quantization and error correction |
| 09/21/1993 | US5247579 Methods for speech transmission |
| 09/16/1993 | WO1993018505A1 Voice transformation system |
| 09/15/1993 | EP0560599A1 Noise suppression apparatus |
| 09/15/1993 | EP0226613B1 Noise supression system |
| 09/15/1993 | CN1076296A Noise suppression apparatus |
| 09/08/1993 | EP0559383A1 A method and apparatus for coding audio signals based on perceptual model |
| 09/02/1993 | WO1993017508A1 Filtering method and device for reducing digital audio signal pre-echoes |
| 09/02/1993 | WO1993017415A1 Method for determining boundaries of isolated words |
| 09/01/1993 | EP0558312A1 Adaptive noise reduction circuit for a sound reproduction system |
| 08/31/1993 | US5241692 Interference reduction system for a speech recognition device |
| 08/25/1993 | EP0557166A1 Noise reduction method in a speech signal |
| 08/25/1993 | EP0556992A1 Noise attenuation system |
| 08/17/1993 | US5237124 Transmission sound developing system with pcm data |
| 08/10/1993 | US5235669 Low-delay code-excited linear-predictive coding of wideband speech at 32 kbits/sec |
| 08/04/1993 | EP0553906A2 Method and apparatus for sound enhancement with envelopes of multiband passed signals feeding comb filters |
| 08/03/1993 | CA1321025C Speech signal coding/decoding system |
| 07/22/1993 | WO1993014492A1 Method and apparatus for encoding, decoding and compression of audio-type data |
| 07/21/1993 | EP0551422A1 Automatic length-reducing audio delay line |
| 07/14/1993 | EP0550942A1 Signal processor for sampling rate conversion |
| 07/13/1993 | US5228088 Voice signal processor |
| 07/06/1993 | US5226084 Methods for speech quantization and error correction |
| 06/15/1993 | US5220611 System for editing document containing audio information |
| 06/01/1993 | US5216744 Time scale modification of speech signals |
| 05/25/1993 | US5214707 Control system for controlling equipment provided inside a vehicle utilizing a speech recognition apparatus |
| 05/18/1993 | US5212764 Noise eliminating apparatus and speech recognition apparatus using the same |
| 05/13/1993 | WO1993009531A1 Processing of electrical and audio signals |
| 05/07/1993 | CA2081693A1 Speech segment coding and pitch control methods for speech synthesis systems |
| 05/05/1993 | EP0235127B2 Hands-free control system for a radiotelephone |
| 05/04/1993 | US5208864 Method of detecting acoustic signal |
| 05/04/1993 | US5208786 Multi-channel signal separation |
| 04/20/1993 | US5204906 Voice signal processing device |
| 04/14/1993 | CN1071036A Variable rate vocoder |
| 04/07/1993 | EP0208712B1 Adaptive method and apparatus for coding speech |
| 03/31/1993 | EP0534410A2 Method and apparatus for hearing assistance with speech speed control function |