Proceedings ArticleDOI
A modified EVRC algorithm for enhanced noise suppression and increased robustness
S Prashanth Raju,B C Ramakrishna,Shireesh Kamdur Mallappa,K S Shanmukha +3 more
- pp 260-263
TLDR
A modification to the EVRC algorithm is proposed, which further improves the performance of it tremendously and increase in performance of the proposed modified algorithm is ascertained by implementing the same on the DSK and obtaining relevant results.Abstract:
This paper intends to analyze the performance of the widely used Enhanced Variable Rate Codec (EVRC) algorithm for suppressing background noise in speech Signals and propose a method for improving the current noise suppression capability of the algorithm. Firstly, the current EVRC algorithm is implemented on the TMS320C6713 based DSK in order to verify the algorithm and also to validate the real time performance of it. Then, based on the results and further analysis of the algorithm, a modification to the EVRC algorithm is proposed, which further improves the performance of it tremendously. This increase in performance of the proposed modified algorithm is ascertained by implementing the same on the DSK and obtaining relevant results.read more
Citations
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Patent
Audio encoder and method for encoding an audio signal
Tom Bäckström,Emma Jokinen +1 more
TL;DR: In this paper, an audio encoder (100) is configured to obtain a noise information (106) describing a noise included in the audio signal (104), and then the encoder adaptively encodes audio signals in dependence on the noise information.
References
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Proceedings ArticleDOI
Background noise suppression for speech enhancement and coding
TL;DR: A background noise suppression system developed by Motorola is included as a feature in IS-127, the TIA/EIA standard for the enhanced variable rate codec (EVRC) to be used in CDMA based telephone systems.