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MMEV is a voice compression/decompression engine which enables real-time processing on an embedded processor.
It is based on a multimodal multipulse excitation vocoder developed jointly by Asahi Kasei and Georgia Institute of Technology (USA),
and uses proprietary Asahi Kasei technology to achieve higher sound quality and to enable compatibility with both 8 kHz and 11 kHz sampling rates.
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Features |
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High compression ratio with high sound quality, achieved through variable-rate compression. |
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Support for 8 kHz and 11 kHz sampling rate. |
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MMEV8 for 8 kHz sampling |
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MMEV11 for 11 kHz sampling |
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MMEV8/11 for 8 or 11 kHz sampling |
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Variable bit rate |
| Bit rates may be configured as below, enabling 1:10 to 1:18 compression ratios with 16-bit PCM data |
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7–13 kbps with MMEV8 |
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10–17 kbps with MMEV11 |
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Real-time encoding possible with micro-controllers |
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ANSI C-compliant interface |
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Platforms |
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Windows 95/98/Me, Windows NT/2000, XP, Windows CE, µ-iTRON |
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Micro-controllers (ARM, SH, TX), Windows PC |
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Target applications |
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Voice guidance, voice memo, phone ansewering messages, voice mail, games, etc.
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