The paper presents a new low-complexity algorithm for silence suppression in adverse acoustic environments. The algorithm uses a single time-domain input parameter (signal power) given to a simple matching block. The decision module adapts a series of thresholds depending on the current estimated signal-to-noise-ratio (SNR) of the signal. A series of tests carried out using a large speech database confirm a 10% improvement in pause detection performance as compared with the AMR VAD option 1 recently adopted by ETSI for 3rd-generation mobile systems.
A low-complexity speech-pause detection algorithm for communication in noisy environments
SERRANO, Salvatore
2004-01-01
Abstract
The paper presents a new low-complexity algorithm for silence suppression in adverse acoustic environments. The algorithm uses a single time-domain input parameter (signal power) given to a simple matching block. The decision module adapts a series of thresholds depending on the current estimated signal-to-noise-ratio (SNR) of the signal. A series of tests carried out using a large speech database confirm a 10% improvement in pause detection performance as compared with the AMR VAD option 1 recently adopted by ETSI for 3rd-generation mobile systems.File in questo prodotto:
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