Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs
Y Reznik - US Patent 8,515,767, 2013 - Google Patents
Codebook indices for a scalable speech and audio codec may be ef? ciently encoded
based on anticipated probability dis tributions for such codebook indices. A residual signal …
based on anticipated probability dis tributions for such codebook indices. A residual signal …
Bandwidth extension for hierarchical speech and audio coding in ITU-T Rec. G. 729.1
Recommendation G. 729.1 is a new ITU-T standard which was approved in May 2006. This
recommendation describes a hierarchical speech and audio coding algorithm built on top of …
recommendation describes a hierarchical speech and audio coding algorithm built on top of …
Encoding device, decoding device, and methods thereof based on subbands common to past and current frames
T Yamanashi, M Oshikiri - US Patent 8,352,258, 2013 - Google Patents
An encoding device includes: a frequency region converter which converts an inputted
audio signal into a frequency region; a band selector which selects a quantization object …
audio signal into a frequency region; a band selector which selects a quantization object …
Encoding device, decoding device, and method thereof
T Yamanashi, M Oshikiri - US Patent 8,560,328, 2013 - Google Patents
(57) ABSTRACT A decoding device is capable of flexibly calculating high band spectrum
data with a high accuracy in accordance with an encoding band selected by an upper-node …
data with a high accuracy in accordance with an encoding band selected by an upper-node …
Signal re-use during bandwidth transition period
SS Subasingha, V Atti, V Rajendran - US Patent 9,837,094, 2017 - Google Patents
A method includes determining an error condition during a bandwidth transition period of an
encoded audio signal. The error condition corresponds to a second frame of the encoded …
encoded audio signal. The error condition corresponds to a second frame of the encoded …
Bandwidth extension mode selection
SP Villette, DJ Sinder - US Patent 9,293,143, 2016 - Google Patents
(57) ABSTRACT A device includes a decoder that includes an extractor, a predictor, a
selector, and a Switch. The extractor is configured to extract a first plurality of parameters …
selector, and a Switch. The extractor is configured to extract a first plurality of parameters …
[PDF][PDF] Sparsity in linear predictive coding of speech
D Giacobello - 2010 - vbn.aau.dk
This thesis deals with developing improved techniques for speech coding based on the
recent developments in sparse signal representation. In particular, this work is motivated by …
recent developments in sparse signal representation. In particular, this work is motivated by …
[图书][B] High-definition telephony over heterogeneous networks
B Geiser - 2012 - publications.rwth-aachen.de
As of today, the lion's share of the worldwide (fixed and mobile) telephone connections is
still restricted to audio frequencies below 4kHz, leading to the familiar sound character of …
still restricted to audio frequencies below 4kHz, leading to the familiar sound character of …
Audio encoder and decoder using a frequency domain processor, a time domain processor, and a cross processing for continuous initialization
An audio encoder for encoding an audio signal includes: a first encoding processor for
encoding a first audio signal portion in a frequency domain, wherein the first encoding …
encoding a first audio signal portion in a frequency domain, wherein the first encoding …
Concept for coding mode switching compensation
US9934787B2 - Concept for coding mode switching compensation - Google Patents
US9934787B2 - Concept for coding mode switching compensation - Google Patents Concept for …
US9934787B2 - Concept for coding mode switching compensation - Google Patents Concept for …