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Comments? ---------------------------------------- "Mark Taylor" <mt@sulaco.org> wrote: [...] > This is related to one minor objection I have to vector quantization > based codecs like Vorbis and the MPEG4 VQ codec: they do not compute > the quantization noise during the encoding process. The choice of > codebooks (use a big codebook: low quantization nois...

...encoded*.......... Done. Statistics: Elapsed time: 795.13 sec. File length: 294.53 sec. Rate: 0.3704 real 13m15.273s user 13m3.600s sys 0m3.430s * * * LAME command line: time lame -b 160 -h -k /tmp/Ministry_TheFall.wav /tmp/Ministry_TheFall.mp3 Output: LAME version 3.83 (www.sulaco.org/mp3) GPSYCHO: GPL psycho-acoustic and noise shaping model version 0.77. Encoding /tmp/Ministry_TheFall.wav to /tmp/Ministry_TheFall.mp3 Encoding as 44.1 kHz 160 kbps stereo MPEG1 LayerIII ( 8.8x) qval=2 Frame | CPU/estimated | time/estimated | play/CPU | ETA 11275/ 11275(100...

Please pardon me if you have already seen this posting, but I received no postings from the list for a week....I assumed the list was down. I would like to batch re-encode MP3 files on the Icecast host. A command-line utility to take say a 56kbps MP3 file as input and produce a 20kbps MP3 file as out would be ideal. --------------------------------------------------------------- Todd Merriman -

...nses can follow the same coherence: for example, low frequency sounds are hard to localize, so projecting those signals onto a single channel isn't noticable. I've forwarded your question to the vorbis-dev list, in case anyone there has some pointers. You might also try the lame list (q.v. sulaco.org/mp3) I know they've experimented with several encoding techniques and can probably answer specific questions. Hope that helps, -ralph > Expecting an early reply. > Thanks in advance. > > -Sreenivas > DSP Engineer, > Wipro Technologies > Bangalore --- >8 ---- Lis...

In case people on the list don't know it, A Vorbis tester (who's email I've lost! If you're on the list, speak up!) is maintaining a vorbis audio quality test page: http://hem.passagen.se/ingets1/vorbis.htm He's doing us the great service of hunting down samples that break Vorbis (so we don't have to :-) In any case, it turns out that the trumpets in the dr4 sample

Yes, I downloaded the aumix utility and am using it now. Set line in to %50 then %25 and to record but still the same thing. I'm streaming from the line in on the sound card which is being fed from a portable radio nearby. I get the distortion whether I have the audio fed into 'line in' or not. Matt -----Original Message----- From: owner-icecast@xiph.org

...calhost PORT 8000 PASSWORD xxxxx <p># Which encoder to use - choose one - you may need to set a suitable # sampling frequency and birate. # # Recommended Encoders # # USE_MP3ENC use fraunhofer's mp3 encoder: money + CPU = best quality # USE_LAME3 Use the currenct versions of lame (www.sulaco.org) # USE_GOGO Hacked/Optomised Lame - Lower quality, higher speed # USE_XING_BETA - actually it's illegal to use this.... # USE_L3ENC - Fraunhofer's original encoder. registerd version only. # # Recommended for kernel hackers only # # USE_XING - uses the XING mp3 encoder - you need a spe...

I just found this link on slashdot: http://www.soundandvisionmag.com/SoundAndVision/FrameSet/0,1670,_sl_SoundAndVision_sl_Article_sl_0_cm_1653_cm_130_2020_1_cm_00,00.html It is a Sept 1999 article describing some very detailed, double blind listening tests comparing PAC(Lucent), MP3(FhG) and MS audio at 128kbs. In typical microsoft fashon, MS audio is the clear looser despite all their hype.