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7634399 |
Voice transcoder
First encoded voice bits are transcoded into second encoded voice bits by dividing the first encoded voice bits into one or more received frames, with each received frame containing multiple ones...
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7634068 |
Methods and systems for creating and delivering group recordings
Methods, systems and devices for creating special communications or recordings containing messages from family members, friends, coworkers, colleagues and the like may be delivered to a recipient...
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7630902 |
Apparatus and methods for digital audio coding using codebook application ranges
A low bit rate digital audio coding system includes an encoder which assigns codebooks to groups of quantization indexes based on their local properties resulting in codebook application ranges...
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7627480 |
Support of a multichannel audio extension
Methods and units supporting a multichannel audio extension in a multichannel audio coding system are shown. In order to allow an efficient extension of an available mono audio signal {tilde over...
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7627471 |
Providing translations encoded within embedded digital information
A method of providing a translation within a voice stream can include receiving a speech signal in a first language, determining text from the speech signal, translating the text to a second and...
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7627467 |
Packet loss concealment for overlapped transform codecs
Real-time packet-based audio communications over packet-based networks frequently results in the loss of one or more packets during any given communication session. The real-time nature of such...
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RE41009 |
Audio transmission, recording and reproducing system
An audio recording and reproducing apparatus includes a controller for controlling the entire behaviors, hard disc for write and read of audio data, audio compression/expansion circuit for...
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7620545 |
Scale factor based bit shifting in fine granularity scalability audio coding
One embodiment of the present invention provides a method coding audio signals in a base layer and an enhancement layer comprising the steps of quantizing the audio signals in spectral lines into...
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7617110 |
Lossless audio decoding/encoding method, medium, and apparatus
A lossless audio encoding/decoding method, medium, and apparatus. The lossless audio encoding method includes converting an audio signal in a time domain into an audio spectral signal with an...
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7617094 |
Methods, apparatus, and products for identifying a conversation
One aspect of the invention is a method of using a computer to identify a conversation. Another aspect is a method for an audio processing system that identifies conversations and enhances each...
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7613609 |
Apparatus and method for encoding a multi-channel signal and a program pertaining thereto
To encode multi-channel digital data by adjusting the number of bits allocated to each channel to perform entropy coding of the multi-channel data, there is provided a multi-channel encoder...
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7610198 |
Robust quantization with efficient WMSE search of a sign-shape codebook using illegal space
A method of searching a signed codebook to quantize a vector includes weighting a shape codevector in a set of shape codevectors with a weighting function for a Weighted Mean Square Error (WMSE)...
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7603270 |
Method of prioritizing transmission of spectral components of audio signals
A method for the transmission of audio signals between a transmitter and at least one receiver operates according to the prioritizing pixel transmission method. The audio signal is first broken...
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7596486 |
Encoding an audio signal using different audio coder modes
The invention relates to a method for supporting an encoding of an audio signal, wherein a first coder mode and a second coder mode are available for encoding a respective section of an audio...
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7593387 |
Voice communication with simulated speech data
Voice conversations by way of communications devices are conducted by transmitting symbols representative of a user's voice from a transmitting communications device and recreating the user's voice...
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7590543 |
Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
The present invention proposes a new method for improving the performance of a real-valued filterbank based spectral envelope adjuster. By adaptively locking the gain values for adjacent channels...
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7584094 |
Automated digital voice recorder to personal information manager synchronization
Apparatus and methods are presented for Automated Digital voice recorder to Personal information manager Synchronization (ADPS) message creation that allow a user to indicate that an ADPS message...
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7584106 |
Method and apparatus for reducing access delay in discontinuous transmission packet telephony systems
A system, method and computer-readable medium are disclosed for operating a communications network. The method aspect comprises receiving a signal and removing a first portion of a frame of the...
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7577563 |
Enhanced conversion of wideband signals to narrowband signals
Wideband speech signals must be converted to narrowband speech signals if the transmission medium or the destination terminal is constructed with narrowband constraints. A typical...
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7574353 |
Transmit/receive data paths for voice-over-internet (VoIP) communication systems
The present invention is a method and apparatus in a data processing system that includes a Voice over Internet Protocol (VoIP) communication system for improving transmit and receive data paths....
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7574351 |
Arranging CELP information of one frame in a second packet
Packets of real-time information are sent with a source rate greater than zero kilobits per second, and a time or path or combined time/path diversity rate initially being zero kilobits per second....
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7574357 |
Applications of sub-audible speech recognition based upon electromyographic signals
Method and system for generating electromyographic or sub-audible signals (“SAWPs”) and for transmitting and recognizing the SAWPs that represent the original words and/or phrases. The SAWPs...
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7574350 |
Passive data carrier with signal evaluation means for evaluating information of a self-clocking signal
A data carrier ( 2 ) that is developed for contactless receiving of a signal, wherein the data carrier ( 2 ) can be supplied with energy and information by the signal, provides data carrier...
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7571093 |
Method of identifying duplicate voice recording
A method of identifying duplicate voice recording by receiving digital voice recordings, selecting one of the recordings; segmenting the selected recording, extracting a pitch value per segment,...
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7567897 |
Method for dynamic selection of optimized codec for streaming audio content
Several encoders at a broadcast system encode the same audio content. Packets from the resulting streams are immediately decoded and compared against the packets of the original audio stream. The...
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7565287 |
Methods and apparatus for efficient vocoder implementations
Techniques for implementing vocoders in parallel digital signal processors are described. A preferred approach is implemented in conjunction with the BOPS® Manifold Array (ManArray™) processing...
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RE40841 |
Sound recording and reproduction system for model train using integrated digital command control
A system is provided for recording, storing and reproducing sound for playing back in an environment requiring simulated sounds, voices, and/or sound effects. Sounds are recorded on a chip and...
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7558381 |
Retrieval of deleted voice messages in voice messaging system
Apparatus and method to allow retrieval of voice messages deleted from the voice message memory of a voice messaging system. A voice messaging system such as a telephone answering device includes a...
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7552120 |
Method for indexing and identifying multimedia documents
The method of indexing multimedia documents comprises the following steps: a) for each document identifying and extracting terms t i constituted by vectors characterizing properties of the; b)...
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7548851 |
Digital multimedia jukebox
A musical jukebox is disclosed which provides for: fast archiving of songs; a flexible user interface; easy and convenient entry of, access to and/or display of data relating to songs archived by...
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7546173 |
Apparatus and method for audio content analysis, marking and summing
An apparatus and method for the analysis, marking and summing of audio channel content and control data, the apparatus and method generating a summed signal carrying combined audio content, marking...
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7546236 |
Anomaly recognition method for data streams
This invention identifies anomalies in a data stream, without prior training, by measuring the difficulty in finding similarities between neighborhoods in the ordered sequence of elements. Data...
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7542897 |
Condensed voice buffering, transmission and playback
This disclosure is directed to techniques for condensed voice buffering, transmission and playback. The techniques may involve identification of encoded voice frames as either speech or a pause,...
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7542899 |
Method and apparatus for adjusting the level of a speech signal in its encoded format
A method and apparatus for modifying the level of a speech signal is provided in which the gain parameter in the encoded speech signal is changed in a variable and cyclical manner over time. More...
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7542896 |
Audio coding/decoding with spatial parameters and non-uniform segmentation for transients
In binaural stereo coding, only one monaural channel is encoded. An additional layer holds the parameters to retrieve the left and right signal. An encoder is disclosed which links transient...
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7536298 |
Method of comfort noise generation for speech communication
An embodiment of the invention improves upon the International Telecommunication Union's ITU-T G.729 Annex B comfort noise generation algorithm by reducing the computational complexity of the...
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7523039 |
Method for encoding digital audio using advanced psychoacoustic model and apparatus thereof
A digital audio encoding method using an advanced psychoacoustic model is provided. The audio encoding method including determining the type of a window according to the characteristic of an input...
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7516064 |
Adaptive hybrid transform for signal analysis and synthesis
Analysis and synthesis filter banks such as those used in audio and video coding systems are each implemented by a hybrid transform that comprises a primary transform in cascade with one or more...
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7512536 |
Efficient filter bank computation for audio coding
Low-complexity synthesis filter bank for MPEG audio decoding uses a factoring of the 64×32 matrixing for the inverse-quantized subband coefficients. Factoring into non-standard 4-point discrete...
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7505764 |
Method for retransmitting a speech packet
The invention provides a method of retransmitting a speech packet. In one embodiment, the method includes receiving (S 702 ) at a transmitting device ( 140 ) a first negative acknowledgement (NACK)...
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7496503 |
Timing of speech recognition over lossy transmission systems
Recognizing a stream of speech received as speech vectors over a lossy communications link includes constructing for a speech recognizer a series of speech vectors from packets received over a...
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7483443 |
Adaptive queuing for data transmission over a network
Methods and systems for dynamically adjusting the length of delay before playback as a function of the amount of transmission jitter is disclosed, whereby a target error rate is received, error...
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7478175 |
Recording/reproducing apparatus
A control method for controlling a recording/reproducing apparatus having plural storage units and an equipment to which the recording/reproducing apparatus is connected. The recording/reproducing...
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7478035 |
Verbal classification system for the efficient sending and receiving of information
A verbal classification system and method for the efficient sending and receiving of desired information is described. Web-site proprietors ( 314 ) and Internet marketers provide a host server (...
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7469209 |
Method and apparatus for frame classification and rate determination in voice transcoders for telecommunications
A method and apparatus for frame classification and rate determination in voice transcoders. The apparatus includes a classifier input parameter preparation module that unpacks the bitstream from...
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7466245 |
Digital signal processing apparatus, digital signal processing method, digital signal processing program, digital signal reproduction apparatus and digital signal reproduction method
A digital signal processing apparatus includes: a detection section; a prediction section; and a decision section. The detection section is configured to detect a signal position at which a signal...
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7467082 |
Method and apparatus for transmitting wideband speech signals
A method and an apparatus for transmitting a speech signal are provided. A speech signal transmitter includes a quadrature mirror filter, a base sub-band encoder, an enhancement sub-band encoder,...
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7457742 |
Variable rate audio encoder via scalable coding and enhancement layers and appertaining method
A maximum of Nmax bits for encoding is defined for a set of parameters which may be calculated from a signal frame. The parameters for a first sub-set are calculated and encoded with N0 bits, where...
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7454354 |
Hierarchical lossless encoding/decoding method, hierarchical lossless encoding method, hierarchical lossless decoding method, its apparatus and program
A hierarchical lossless encoding and decoding technology for digital signals such as of music data, audio data, or the like. A lossless reproduced signal is made identical to an input signal even...
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7444289 |
Audio decoding method and apparatus for reconstructing high frequency components with less computation
An audio decoding method and apparatus for reconstructing high frequency components with less computation are provided. The audio decoding apparatus includes a decoder, a channel similarity...
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