Title :
The use of digital adaptive filters in assessing live speech networks
Author :
Milner, S.H. ; Cryan, R.A. ; Senior, J.M. ; South, C.R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Manchester Metropolitan Univ., UK
fDate :
11/2/1993 12:00:00 AM
Abstract :
An in-service nonintrusive measurement device for monitoring network performance at the 4-wire trunk level is described. The signal processing functions are extensively performed using a digital adaptive filter (DAF) implemented on a Motorola DSP56001 to characterise an unknown echo-path. Original results have shown that network parameters can be derived from the echo-path model, which can be subsequently mapped onto subjective estimates of customer perceived call quality
Keywords :
adaptive filters; digital filters; digital signal processing chips; echo suppression; speech analysis and processing; telecommunication networks; voice communication; Motorola DSP56001; customer perceived call quality; digital adaptive filters; four-wire trunk level; in-service nonintrusive measurement device; live speech networks; network parameters; network performance; signal processing functions; unknown echo-path;
Conference_Titel :
Digital and Analogue Filters and Filtering Systems, IEE Colloquium on
