|
KMID : 0917520010080020073
|
|
Journal of Speech Sciences
2001 Volume.8 No. 2 p.73 ~ p.81
|
|
|
Implementation of the single channel adaptive noise canceller using TMS320C30
|
|
|
|
|
Abstract
|
|
|
|
In this paper, we focus on the real time implementation of the single channel adaptive noise canceller(AN) by using TM 3 0030 EVM hoard. The implemented single channel adaptive noise canceller is based on a reference paper [1] in which it is simulated by using the recursive average magnitude difference function(AMD ´) to get a properly delayed input speech on a sample basis as a reference signal and normalized least mean sq are(NLM) algorithm. To certify results of the real time implementation, we measured the processing time of the ANC and enhancement ratio according to various signalto-noise ratios(SNRs). Experimental results demonstrate that the processing time of the speech signal of 3 ms length with delay estimation of every 10 samples is about 20.3 ms, and almost the same performance as given in [1] is obtained with the implemented system
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|