| Presentation | 2011-01-17 Audio dynamic range compression using polynomial equations Tatsuya MIYASHITA, Kazuhiro MOTEGI, Shugang WEI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An audio signal level compressor is presented, which is based on the approximation algorithm using an interpolating polynomial. To implement a compression characteristic in a digital audio system, a power calculation with fractional numbers is required and it is difficult to be performed directly in digital circuits. We introduce a polynomial expression to approximate the power operation, and then the gain calculation is easily performed with several additions and multiplication. Newton's interpolation formula and piecewise-polynomial approximation are used to calculate the compression characteristics in a very short time, and the obtained compression characteristics are very close to the ideal ones. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital audio effects / dynamic range control / compressor / piecewise-polynomial approximation |
| Paper # | VLD2010-97,CPSY2010-52,RECONF2010-66 |
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| Conference Information | |
| Committee | RECONF |
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| Conference Date | 2011/1/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Reconfigurable Systems (RECONF) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Audio dynamic range compression using polynomial equations |
| Sub Title (in English) | |
| Keyword(1) | digital audio effects |
| Keyword(2) | dynamic range control |
| Keyword(3) | compressor |
| Keyword(4) | piecewise-polynomial approximation |
| 1st Author's Name | Tatsuya MIYASHITA |
| 1st Author's Affiliation | Department of Production Science and Technology, Graduate School of Engineering, Gunma University() |
| 2nd Author's Name | Kazuhiro MOTEGI |
| 2nd Author's Affiliation | Department of Production Science and Technology, Graduate School of Engineering, Gunma University |
| 3rd Author's Name | Shugang WEI |
| 3rd Author's Affiliation | Department of Production Science and Technology, Graduate School of Engineering, Gunma University |
| Date | 2011-01-17 |
| Paper # | VLD2010-97,CPSY2010-52,RECONF2010-66 |
| Volume (vol) | vol.110 |
| Number (no) | 362 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |