Abstract
A novel, non-uniform PCM audio quantizer is described, employing a time-domain Computational Auditory Masking Model (CAMM). The model utilizes the concept of Signal Dependent Compression to produce an internal representation of the input signal so that via the use of a decision device a time-varying threshold can be derived. Based on this model, the proposed quantizer evaluates masked/unmasked regions of the signal, so that by an iterative process, the desired variable bit allocation table can be generated to quantize audio samples. Preliminary results indicate good perceptual quality for an average rate of 6.7 bits/sample.
| Original language | English |
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| Title of host publication | Audio Engineering Society - 118th Convention Spring Preprints 2005 |
| Place of Publication | New York |
| Publisher | Audio Engineering Society |
| Pages | 1059-1065 |
| Number of pages | 7 |
| Volume | 3 |
| ISBN (Print) | 9781604234848 |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | 118th Convention Spring Preprints 2005 - Barcelona, Spain Duration: 28 May 2005 → 31 May 2005 |
Other
| Other | 118th Convention Spring Preprints 2005 |
|---|---|
| Country/Territory | Spain |
| City | Barcelona |
| Period | 28/05/05 → 31/05/05 |