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<P>Hi, <BR>I have taken libtremor (latest from tree). I have built it with ivorisfile_exaple.c for windows. I used these test vecotrs to check http://people.xiph.org/~xiphmont/test-vectors/vorbis/ tremor output against <BR>Vorbis floating point decoder output. I compared both the results [tremor vs vorbis float point]. Below is the summary of the results.<BR>I am not sure whether input test vectors, which i used, are correct one. I am not also sure about the behaviour of tremor decoder against Vorbis float decoder. <BR>Please suggest if the results are acceptable. <BR></P>
<P>Results --</P>
<P>pcmcheck.exe -h 1.0.1-test.ogg.pcm 1.0.1-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.498058<BR>RMS power of difference .... 0.709690<BR>--------------------------- <BR>pcmcheck.exe -h 1.0-test.ogg.pcm 1.0-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.510240<BR>RMS power of difference .... 0.720055<BR>--------------------------- <BR>pcmcheck.exe -h 48k-mono.ogg.pcm 48k-mono.ogg.pcm <BR>Peak difference ............ 1<BR>Average difference ......... 0.478029<BR>RMS power of difference .... 0.691397<BR>--------------------------- <BR>pcmcheck.exe -h beta3-test.ogg.pcm beta3-test.ogg.pcm <BR>Peak difference ............ 17523<BR>Average difference ......... 512.197661<BR>RMS power of difference .... 1013.799072<BR>--------------------------- <BR>pcmcheck.exe -h beta4-test.ogg.pcm beta4-test.ogg.pcm <BR>Peak difference ............ 5919<BR>Average difference ......... 318.454603<BR>RMS power of difference .... 488.419820<BR>--------------------------- <BR>pcmcheck.exe -h chain-test1.ogg.pcm chain-test1.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.502537<BR>RMS power of difference .... 0.709393<BR>--------------------------- <BR>pcmcheck.exe -h chain-test2.ogg.pcm chain-test2.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.502537<BR>RMS power of difference .... 0.709393<BR>--------------------------- <BR>pcmcheck.exe -h chain-test3.ogg.pcm chain-test3.ogg.pcm <BR>Peak difference ............ 39415<BR>Average difference ......... 2595.621111<BR>RMS power of difference .... 5016.655574<BR>--------------------------- <BR>pcmcheck.exe -h highrate-test.ogg.pcm highrate-test.ogg.pcm <BR>Peak difference ............ 18136<BR>Average difference ......... 506.886562<BR>RMS power of difference .... 1009.297004<BR>--------------------------- <BR>pcmcheck.exe -h lsp-test2.ogg.pcm lsp-test2.ogg.pcm <BR>Peak difference ............ 6561<BR>Average difference ......... 282.721964<BR>RMS power of difference .... 430.674848<BR>--------------------------- <BR>pcmcheck.exe -h lsp-test3.ogg.pcm lsp-test3.ogg.pcm <BR>Peak difference ............ 4433<BR>Average difference ......... 417.010745<BR>RMS power of difference .... 605.779281<BR>--------------------------- <BR>pcmcheck.exe -h lsp-test4.ogg.pcm lsp-test4.ogg.pcm <BR>Peak difference ............ 4289<BR>Average difference ......... 374.768017<BR>RMS power of difference .... 537.753205<BR>--------------------------- <BR>pcmcheck.exe -h lsp-test.ogg.pcm lsp-test.ogg.pcm <BR>Peak difference ............ 4066<BR>Average difference ......... 298.212496<BR>RMS power of difference .... 447.955622<BR>--------------------------- <BR>pcmcheck.exe -h mono.ogg.pcm mono.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.503276<BR>RMS power of difference .... 0.709679<BR>--------------------------- <BR>pcmcheck.exe -h moog.ogg.pcm moog.ogg.pcm <BR>Peak difference ............ 15048<BR>Average difference ......... 356.783654<BR>RMS power of difference .... 674.226276<BR>--------------------------- <BR>pcmcheck.exe -h one-entry-codebook-test.ogg.pcm one-entry-codebook-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.503465<BR>RMS power of difference .... 0.710834<BR>--------------------------- <BR>pcmcheck.exe -h out-of-spec-blocksize.ogg.pcm out-of-spec-blocksize.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.506590<BR>RMS power of difference .... 0.714819<BR>--------------------------- <BR>pcmcheck.exe -h rc1-test.ogg.pcm rc1-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.497537<BR>RMS power of difference .... 0.705566<BR>--------------------------- <BR>pcmcheck.exe -h rc2-test2.ogg.pcm rc2-test2.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.507327<BR>RMS power of difference .... 0.715364<BR>--------------------------- <BR>pcmcheck.exe -h rc2-test.ogg.pcm rc2-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.502761<BR>RMS power of difference .... 0.709057<BR>--------------------------- <BR>pcmcheck.exe -h rc3-test.ogg.pcm rc3-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.493901<BR>RMS power of difference .... 0.702784<BR>--------------------------- <BR>pcmcheck.exe -h singlemap-test.ogg.pcm singlemap-test.ogg.pcm <BR>Peak difference ............ 2<BR>Average difference ......... 0.501363<BR>RMS power of difference .... 0.708099<BR>--------------------------- <BR>pcmcheck.exe -h sleepzor.ogg.pcm sleepzor.ogg.pcm <BR>Peak difference ............ 10469<BR>Average difference ......... 489.619211<BR>RMS power of difference .... 920.358057<BR>--------------------------- <BR>pcmcheck.exe -h test-short2.ogg.pcm test-short2.ogg.pcm <BR>Peak difference ............ 907<BR>Average difference ......... 35.687587<BR>RMS power of difference .... 66.932146<BR>--------------------------- <BR>pcmcheck.exe -h test-short.ogg.pcm test-short.ogg.pcm <BR>Peak difference ............ 39415<BR>Average difference ......... 9419.493138<BR>RMS power of difference .... 11709.633701<BR>--------------------------- <BR></P>
<P><BR>Thanks & Regards,<BR>Amit Pandey,</P>
<P>Samsung </P></BODY></HTML><img src='http://ext.samsung.net/mailcheck/SeenTimeChecker?do=bdef14cc591032d50bc9d982b3ccf2323960e419beffd84b53b062ac545b582e0054c845f2ccad5f49e5ff3dfdc8681d76f80bf81d31c863cf878f9a26ce15a0' border=0 width=0 height=0 style='display:none'>