Title :
A vocoder scheme for very low bit rates (quality evaluation)
Author :
Lacroix, A. ; Makai, B.
Author_Institution :
Henrich-Hertz-Institut für Nachrichtentechnik, Berlin, W. Germany
Abstract :
A cascade of variable length uniform tube sections is used as basic model for a vocoder principle with typically 4-5 tube sections. The quality of vocoded speech has been investigated by subjective evaluation, by computation of spectral distances and resonance locations.
Keywords :
Autocorrelation; Bit rate; Linear predictive coding; Quantization; Resonance; Source coding; Speech analysis; Speech coding; Telephony; Vocoders;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '82.
DOI :
10.1109/ICASSP.1982.1171650
