Name
Abstract | ||
|---|---|---|
We revisit an original concept of speech coding in which the signal is separated into the carrier modulated by the signal envelope. A recently developed technique, called frequency-domain linear prediction (FDLP), is applied for the efficient estimation of the envelope. The processing in the temporal domain allows for a straightforward emulation of the forward temporal masking. This, combined with an efficient nonuniform sub-band decomposition and application of noise shaping in spectral domain instead of temporal domain (a technique to suppress artifacts in tonal audio signals), yields a codec that does not rely on the linear speech production model but rather uses well-accepted concept of frequency-selective auditory perception. As such, the codec is not only specific for coding speech but also well suited for coding other important acoustic signals such as music and mixed content. The quality of the proposed codec at 66 kbps is evaluated using objective and subjective quality assessments. The evaluation indicates competitive performance with the MPEG codecs operating at similar bit rates. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1155/2010/856280 | EURASIP J. Audio, Speech and Music Processing |
Keywords | Field | DocType |
frequency-domain linear prediction,efficient estimation,coding speech,temporal masking,original concept,wide-band audio,linear speech production model,efficient nonuniform sub-band decomposition,proposed codec,spectral domain,temporal domain,speech coding | Code-excited linear prediction,Vector sum excited linear prediction,Speech coding,Computer science,Adaptive Multi-Rate audio codec,Speech recognition,Sub-band coding,Codec2,Harmonic Vector Excitation Coding,Linear predictive coding | Journal |
Volume | Issue | ISSN |
2010, | 1 | 1687-4722 |
Citations | PageRank | References |
2 | 0.47 | 19 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Petr Motlícek | 1 | 105 | 10.60 |
| Sriram Ganapathy | 2 | 252 | 39.62 |
| Hynek Hermansky | 3 | 3298 | 510.27 |
| Harinath Garudadri | 4 | 171 | 23.32 |