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Topic: Speex ist 0.4.0 (Read 3667 times) previous topic - next topic
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Speex ist 0.4.0

This release adds many more bit-rates to both narrowband and wideband, as well as the ability to change bit-rate dynamically from frame to frame. The narrowband modes now range from 8 kbps to 18 kbps, while wideband range from 10 kbps to 28 kbps. There is also a "noise coding" mode at 2 kbps for narrowband and 3 kbps for wideband. All this will lead to real Variable Bit-Rate (VBR) in the future. Also, worth mentioning the codec latency has been reduced from 40 ms to 30 ms (20 ms frames + 10 ms lookahead).