On 09/04/2010 05:22 PM, Marcelo Galvão Póvoa wrote:
On 4 September 2010 06:02, Vitor Sessak<[email protected]> wrote:
On 09/03/2010 11:50 PM, Marcelo Galvão Póvoa wrote:
Also, whether with this patch or not I guess my output to the first
sample above (attached) is not good compared to the reference decoder.
The are some sharp peaks that can be seen with Audacity, one of them
also with clipping. The stddev I've got seems ugly:
stddev: 884.86 PSNR: 37.39 MAXDIFF:23298 bytes: 473600/ 473600
Indeed, the stddev is not particularly good, but don't trust only it to do
comparisons. A very small phase shift can completely ruin the stddev.
Do you see sharp peaks in your output that are not there in the reference
decoder? Or the sharp peaks shows up when you invert and superpose the
waves? Do these sharp peaks gives audible artifacts?
Sorry, I've forgot to mention that I was comparing the reference
decoder output waveform with mine. In general, they look mostly the
same but there are some 3 or 4 points in which my decoder gives a
short peak. I couldn't notice audible artifacts at these moments.
It does looks like a bug :(
-Vitor
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