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1. (WO2017040999) SOFT DECISION AUDIO DECODING SYSTEM

Pub. No.:    WO/2017/040999    International Application No.:    PCT/US2016/050207
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: G10L 19/00
H03M 13/00
H03M 13/25
H03M 13/41
Applicants: SHURE ACQUISITION HOLDINGS, INC.
Inventors: MAMOLA, Robert
Title: SOFT DECISION AUDIO DECODING SYSTEM
Abstract:
A soft decision audio decoding system for preserving audio continuity in a digital wireless audio receiver is provided that deduces the likelihood of errors in a received digital signal, based on generated hard bits and soft bits. The soft bits may be utilized by a soft audio decoder to determine whether the digital signal should be decoded or muted. The soft bits may be generated based on the detected point and a detected noise power, or by using a soft-output Viterbi algorithm. The value of the soft bits may indicate confidence in the strength of the hard bit generation. The soft decision audio decoding system may infer errors and decode perceptually acceptable audio without requiring error detection, as in conventional systems, as well as have low latency and improved granularity.