Title :
LSP-based speech modification for intelligibility enhancement
Author :
McLoughlin, I.V. ; Chance, R.J.
Author_Institution :
Sch. of Electron. & Electr. Eng., Birmingham Univ., UK
Abstract :
CELP coders commonly use line spectral pairs (LSP) to represent linear prediction parameters, giving stable filters and efficient coding. However, manipulation of LSPs can alter frequencies within the represented signals. This paper describes two computationally efficient LSP-based processing methods designed to enhance the intelligibility of speech degraded by acoustic interference
Keywords :
filtering theory; interference (signal); linear predictive coding; signal representation; spectral analysis; speech coding; speech enhancement; speech intelligibility; CELP coders; LSP-based processing methods; LSP-based speech modification; acoustic interference; efficient coding; line spectral pairs; linear prediction parameters; signal representation; speech coding; speech enhancement testing; speech intelligibility enhancement; stable filters; Decoding; Design methodology; Frequency domain analysis; Linear predictive coding; Nonlinear filters; Process design; Resonance; Speech analysis; Speech enhancement; Speech processing;
Conference_Titel :
Digital Signal Processing Proceedings, 1997. DSP 97., 1997 13th International Conference on
Conference_Location :
Santorini
Print_ISBN :
0-7803-4137-6
DOI :
10.1109/ICDSP.1997.628419
