Quantizing audio data using amplitude histogram
US6029129A · kind A · utility
8Cited by
7References
8Claims
0Family size
Assignee
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Key dates
| Filing date | May 22, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | May 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/032
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Quantizing optimizes compression encoding for transmission of audio data. A working set of most frequent sound levels in a sequence of audio samples is determined from a histogram. Sound levels from the working set are then substituted for original sound levels in the subject audio data. This filters the audio data by increasing redundancy and decreasing granularity/resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.