Loudness enhancement system and method

J Thyssen, W LeBlanc, JH Chen - US Patent 9,197,181, 2015 - Google Patents
A loudness enhancement system and method is described that increases the loudness of an
audio signal being played back by an audio device that places limits on the dynamic range …

Robust real-time speech codec

T Wang, H Khalil, K Koishida, W Chen… - US Patent App. 10 …, 2005 - Google Patents
Various strategies for rate/quality control and loss resiliency in an audio codec are
described. The various strategies can be used in combination or independently. For …

Robust decoder

HA Khalil, T Wang, K Koishida, X Sun… - US Patent 7,590,531, 2009 - Google Patents
Techniques and tools related to delayed or lost coded audio information are described. For
example, a concealment technique for one or more missing frames is selected based on one …

Spectral shaping for speech intelligibility enhancement

W LeBlanc, JH Chen, J Thyssen - US Patent 9,196,258, 2015 - Google Patents
(57) ABSTRACT A speech intelligibility enhancement (SIE) system and method is described
that improves the intelligibility of a speech signal to be played back by an audio device when …

Method of lost frame concealment and device

W Zhan, D Wang - US Patent 8,355,911, 2013 - Google Patents
(57) ABSTRACT A device for lost frame concealment comprises: a lost frame detector for
detecting whether a voice frame is lost, a decod ing module for decoding the current voice …

Apparatus and method for error concealment in low-delay unified speech and audio coding

J Lecomte, M Dietz, M Schnabel… - US Patent …, 2016 - Google Patents
US9384739B2 - Apparatus and method for error concealment in low-delay unified speech and
audio coding - Google Patents US9384739B2 - Apparatus and method for error concealment …

Linear prediction based coding scheme using spectral domain noise shaping

G Markovic, G Fuchs, N Rettelbach, C Helmrich… - US Patent …, 2017 - Google Patents
An encoding concept which is linear prediction based and uses spectral domain noise
shaping is rendered less complex at a comparable coding efficiency in terms of, for example …

Apparatus and method for processing an audio signal using a harmonic post-filter

E Ravelli, C Helmrich, G Markovic… - US Patent …, 2019 - Google Patents
An apparatus for processing an audio signal having associ ated therewith a pitch lag
information and a gain informa tion, includes a domain converter for converting a first …

LPC-harmonic vocoder with superframe structure

A Gersho, V Cuperman, T Wang, K Koishida - US Patent 7,286,982, 2007 - Google Patents
4,815,134 A 3/1989 Picone et 31 ' can then be directly synthesized to speech or may be
4,969,192 A 11/1990 Chen et a1 ' transcoded to a format so that an underlying frame-based …

Integrated speech intelligibility enhancement system and acoustic echo canceller

W LeBlanc, J Thyssen, JH Chen - US Patent 8,645,129, 2014 - Google Patents
GIL 9/02(2013.01) GIOL 2L/0208(2013.01)(52) US Cl.(57) ABSTRACT
CPC.................................. G10L 21/0208 (2013.01) USPC........... 704/226; 704/225; 704/227; …