Name
Abstract | ||
|---|---|---|
Harmonic coders that synthesize speech without transmitting phase information abandon the benefits of closed-loop parameter estimation via waveform matching. In this paper, we show that effective closed loop parameter estimation can be achieved when a suitable time-scale modification is applied to the speech LP residual in harmonic coders. The concept is demonstrated here specifically for pitch estimation, but is more broadly applicable. For each of a set of pitch candidates generated by a time-domain pitch estimator, the residual is modified to match the pitch contour derived from that candidate. The best candidate is selected by evaluating for each candidate the match between the modified residual and the synthesized residual. The new pitch estimation algorithm significantly reduces gross pitch errors compared to a conventional time-domain pitch estimator and enhances the perceptual performance of a 4 kbps harmonic coder |
Year | DOI | Venue |
|---|---|---|
1999 | 10.1109/ICASSP.1999.758111 | ICASSP |
Keywords | Field | DocType |
linear predictive coding,pitch estimation,time-domain synthesis,pitch contour,parameter estimation,harmonic coder,robust closed-loop pitch estimation,synthesis,harmonic coders,time-domain pitch estimator,gross pitch error,modified residual,time-domain pitch estimation,speech synthesis,time-scale modification,conventional time-domain pitch estimator,best candidate,harmonic analysis,closed loop parameter estimation,speech coding,new pitch estimation algorithm,phase information,closed-loop parameter estimation,synthesized residual,time scale modification,gross pitch errors,pitch candidates,waveform matching,perceptual performance,pitch candidate,robustness,frequency domain analysis,time domain,signal generators,signal analysis | Speech coding,Audio time-scale/pitch modification,Computer science,Artificial intelligence,Estimation theory,Residual,Pitch contour,Pattern recognition,Algorithm,Harmonic,Speech recognition,Pitch detection algorithm,Estimator | Conference |
Volume | ISSN | ISBN |
1 | 1520-6149 | 0-7803-5041-3 |
Citations | PageRank | References |
0 | 0.34 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chunyan Li | 1 | 0 | 0.34 |
| V. Cuperman | 2 | 0 | 0.34 |
| Allen Gersho | 3 | 2031 | 624.48 |