On Thursday 22 January 2009 13:58:57 ext Christian Hoene wrote: > Hello Siarhei, > > > Hello all, > > > > The attached patch quite noticeably minimizes rounding errors and > > improves audio quality. > > > > > > It is very interesting to see what a more advanced PEAQ test will show. > > The PEAQ results for latest version and the latest plus your latest patch > can be found > http://net.cs.uni-tuebingen.de/html/nexgenvoip/ in latest and latest+patch. > > Congratulations, the encoder is perfect now. Sometimes even better than the > reference! Thanks. The results have really exceeded my expectations. Looks like the precision loss on rounding is now really insignificant so that the rounding errors are now smaller than the sensitivity of PEAQ method. My guess is that very minor differences in results in both directions are just some kind of random deviation and can't be clearly interpreted as an advantage of either implementation. So appears that the perceived quality should be really good now (PSNR rating is a bit worse than reference, but it is not an objective way to measure audio quality). Looks like there is even no need to introduce a high precision configuration option for enabling 32-bit fixed point implementation in practice. It makes everything a bit easier :) -- Best regards, Siarhei Siamashka -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
