| 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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| 10/26/1999 | US5974373 Method for reducing noise in speech signal and method for detecting noise domain |
| 10/26/1999 | US5973252 Pitch detection and intonation correction apparatus and method |
| 10/21/1999 | DE19818608A1 Speech detection and noise parameter estimating method for hands free speaking arrangement |
| 10/19/1999 | US5970459 System for synchronization between moving picture and a text-to-speech converter |
| 10/19/1999 | US5970440 Method and device for short-time Fourier-converting and resynthesizing a speech signal, used as a vehicle for manipulating duration or pitch |
| 10/19/1999 | US5970156 Method and apparatus for reducing periodic interference in audio signals |
| 10/13/1999 | EP0949795A2 Digital voice enhancement system |
| 10/07/1999 | WO1999050825A1 Noise reduction device and a noise reduction method |
| 10/07/1999 | DE19814971A1 Verfahren zur Störbefreiung eines Mikrophonsignals Method for eliminating interference of a microphone signal |
| 10/07/1999 | CA2291826A1 Noise reduction device and a noise reduction method |
| 10/06/1999 | EP0948237A2 Method for noise suppression in a microphone signal |
| 10/05/1999 | US5963907 Voice converter |
| 10/05/1999 | US5963901 Method and device for voice activity detection and a communication device |
| 10/05/1999 | US5963899 Method and system for region based filtering of speech |
| 10/05/1999 | US5963639 Telephone having an audio response function |
| 09/30/1999 | WO1999049698A1 Method and device for operating a microphone system, especially in a motor vehicle |
| 09/30/1999 | WO1999049454A1 Wideband speech synthesis from a narrowband speech signal |
| 09/30/1999 | DE19812697A1 Verfahren und Einrichtung zum Betrieb einer Mikrofonanordnung, insbesondere in einem Kraftfahrzeug Method and apparatus for operating a microphone system, in particular in a motor vehicle |
| 09/29/1999 | EP0946001A2 Method and radio communication system for transmission of speech information |
| 09/29/1999 | EP0945852A1 Speech synthesis |
| 09/29/1999 | CN1230276A Speech detection system employing multiple determinants |
| 09/28/1999 | US5960391 Signal extraction system, system and method for speech restoration, learning method for neural network model, constructing method of neural network model, and signal processing system |
| 09/28/1999 | US5960063 Telephone speech recognition system |
| 09/23/1999 | WO1999048084A1 Method and device for processing a sound signal |
| 09/22/1999 | CN1229229A Portable acoustic interface for remote access to automatic speech/speaker recognition server |
| 09/21/1999 | US5956670 Speech reproducing device capable of reproducing long-time speech with reduced memory |
| 09/21/1999 | US5956463 Audio monitoring system for assessing wildlife biodiversity |
| 09/21/1999 | US5954834 Systems and methods for communicating desired audio information over a communications medium |
| 09/16/1999 | WO1999046734A1 Face synthesis system and methodology |
| 09/16/1999 | WO1999046732A1 Moving picture generating device and image control network learning device |
| 09/15/1999 | EP0941597A1 Interactive apparatus |
| 09/15/1999 | EP0682801B1 A noise reduction system and device, and a mobile radio station |
| 09/14/1999 | US5953700 Portable acoustic interface for remote access to automatic speech/speaker recognition server |
| 09/14/1999 | US5953699 Speech recognition using distance between feature vector of one sequence and line segment connecting feature-variation-end-point vectors in another sequence |
| 09/14/1999 | US5953696 Detecting transients to emphasize formant peaks |
| 09/14/1999 | US5953380 Noise canceling method and apparatus therefor |
| 09/14/1999 | US5952596 Method of changing tempo and pitch of audio by digital signal processing |
| 09/14/1999 | CA2034354C Signal processing device |
| 09/10/1999 | WO1999033050A3 Removing periodicity from a lengthened audio signal |
| 09/08/1999 | EP0940015A1 Source coding enhancement using spectral-band replication |
| 09/07/1999 | US5950164 Voice recording apparatus capable of displaying remaining recording capacity of memory according to encoding bit rates |
| 09/07/1999 | US5950154 Method and apparatus for measuring the noise content of transmitted speech |
| 09/07/1999 | US5950153 Audio band width extending system and method |
| 09/07/1999 | US5950152 Method of changing a pitch of a VCV phoneme-chain waveform and apparatus of synthesizing a sound from a series of VCV phoneme-chain waveforms |
| 09/07/1999 | US5949888 Comfort noise generator for echo cancelers |
| 09/07/1999 | US5949876 Systems and methods for secure transaction management and electronic rights protection |
| 08/31/1999 | US5946649 Esophageal speech injection noise detection and rejection |
| 08/26/1999 | DE19804581A1 Speech or voice-information transmission method for radio communication system using at least two mobile stations for GSM/TDMA service |
| 08/25/1999 | CN1226696A Sound device for expansion station |
| 08/24/1999 | US5943429 In a frame based digital communication system |
| 08/17/1999 | US5940798 Feedback modification for reducing stuttering |
| 08/17/1999 | US5938447 Method and system for making an audio-visual work with a series of visual word symbols coordinated with oral word utterances and such audio-visual work |
| 08/12/1999 | WO1999040572A1 Feedback modification for reducing stuttering |
| 08/12/1999 | WO1999040571A1 System and method for noise-compensated speech recognition |
| 08/12/1999 | WO1999027522A3 Audio processing arrangement with multiple sources |
| 08/11/1999 | EP0683916B1 Noise reduction |
| 08/11/1999 | CN1225736A 语音活动检测器 Voice activity detector |
| 08/10/1999 | US5937383 Apparatus and methods for speech recognition including individual or speaker class dependent decoding history caches for fast word acceptance or rejection |
| 08/10/1999 | US5937379 Canceler of speech and noise, and speech recognition apparatus |
| 08/04/1999 | EP0932964A1 Method and device for blind equalizing of transmission channel effects on a digital speech signal |
| 08/03/1999 | US5933808 Method and apparatus for generating modified speech from pitch-synchronous segmented speech waveforms |
| 08/03/1999 | US5933802 Speech reproducing system with efficient speech-rate converter |
| 08/03/1999 | US5933801 Method for transforming a speech signal using a pitch manipulator |
| 07/29/1999 | WO1999038156A1 Method and device for emphasizing pitch |
| 07/29/1999 | WO1999038144A1 Watermark applied to one-dimensional data |
| 07/29/1999 | CA2283202A1 Method and apparatus for enhancing pitch |
| 07/28/1999 | EP0932142A2 Integrated vehicle voice enhancement system and hands-free cellular telephone system |
| 07/28/1999 | EP0931310A1 Systems and methods for communicating desired audio information over a communications medium |
| 07/27/1999 | US5930749 Monitoring, identification, and selection of audio signal poles with characteristic behaviors, for separation and synthesis of signal contributions |
| 07/27/1999 | US5930372 Communication terminal device |
| 07/20/1999 | US5926788 Method and apparatus for reproducing speech signals and method for transmitting same |
| 07/20/1999 | US5926785 Speech encoding method and apparatus including a codebook storing a plurality of code vectors for encoding a speech signal |
| 07/20/1999 | US5926223 Adaptive video decompression |
| 07/15/1999 | WO1999035638A1 A system and method for encoding voice while suppressing acoustic background noise |
| 07/15/1999 | WO1999022561A3 A method and apparatus for audio representation of speech that has been encoded according to the lpc principle, through adding noise to constituent signals therein |
| 07/14/1999 | EP0929065A2 A modular approach to speech enhancement with an application to speech coding |
| 07/14/1999 | CN1222994A Noise suppressor circuit and associated method for suppressing periodic interference component portions of communication signal |
| 07/13/1999 | US5924065 Computerized method |
| 07/13/1999 | US5923768 Digital audio processing |
| 07/13/1999 | US5923767 Digital audio processing |
| 07/06/1999 | US5920840 Communication system and method using a speaker dependent time-scaling technique |
| 07/01/1999 | WO1999033050A2 Removing periodicity from a lengthened audio signal |
| 06/30/1999 | EP0926839A2 Adaptive removal of disturbance |
| 06/30/1999 | CN1043944C Switched signal processing circuit |
| 06/29/1999 | US5917944 Character recognizing and translating system and voice recognizing and translating system |
| 06/29/1999 | US5917912 Component assembly |
| 06/24/1999 | WO1999031653A1 Apparatus and methods for detecting emotions |
| 06/24/1999 | DE19756512A1 Speech data processing method |
| 06/22/1999 | US5915235 Adaptive equalizer preprocessor for mobile telephone speech coder to modify nonideal frequency response of acoustic transducer |
| 06/22/1999 | US5915019 Systems and methods for secure transaction management and electronic rights protection |
| 06/17/1999 | WO1999030315A1 Sound signal processing method and sound signal processing device |
| 06/17/1999 | CA2312721A1 Sound signal processing method and sound signal processing device |
| 06/15/1999 | US5913187 In an audio signal processing apparatus |
| 06/15/1999 | CA2125095C Automated intelligent monitoring system |
| 06/09/1999 | EP0921649A1 Portable radio telephone equipment and control thereof |
| 06/09/1999 | EP0920744A1 Methods and apparatus for echo suppression |
| 06/09/1999 | CN1219264A Speeking speed changing method and device |
| 06/09/1999 | CN1218945A Identification of static and non-static signals |
| 06/08/1999 | US5910987 Systems and methods for secure transaction management and electronic rights protection |
| 06/03/1999 | WO1999027668A1 Voice recognition unit for audience measurement system |