Since I've seen that the last beta was 3.86b, I tested it on the same sample. The
improvement over 3.85b is significant, and now I can ear almost no artefact but on CBR
128 and below:
lame 3.86b (--lowpass 15 for all VBRs)
CBR 96 horrible/artefacts
CBR 128 acceptable/slight artefacts
CBR 192 good
VBR 9 (120kbs) acceptable
VBR 8 (127kbs) acceptable
VBR 7 (133kbbs) correct
VBR 6 (140 kbs) correct
VBRnew 9 (117kbs) acceptable
VBRnew 6 (135kbs) correct-good
ABR 128 (128kbs) acceptable
Just a remark: the default VBR mode seems to be still --vbr-old (and not --vbr-new, as
suggested by the doc).
Pierre
Pierre Hugonnet wrote:
>
> Hello,
>
> I have a interesting (I think) test sample (.wav ~1.6MB), which consists mainly of
>cymbal hits, with some drums and bass. The problem here is the the cymbal hits. Small
>reports using lame 3.70 (the last stable release) and 3.85b (last beta?) is below.
>However: the CBR result was better (though not very at 128kbs) in 3.70; VBR performs
>better than ABR and CBR with 3.85b.
>
> in 3.85b I'm a little bit worried by the VBR quality setting, which produce fully
>different behavior (average bitrate) than in 3.70.
>
> If somebody is interested in getting the .wav for more testing, just tell me where
>to upload it.
>
> Pierre
>
> -------------------------------------------------------------------
>
> lame 3.70
> CBR 96 horrible/artefacts
> CBR 128 acceptable/slight artefacts
> VBR 6 (107kbs) poor/artefacts
> VBR 5 (123kbs) poor
> VBR 4 (163kbs) correct
>
> lame 3.85b (--lowpass 15 for all VBRs)
> CBR 96 horrible/artefacts
> CBR 128 acceptable/artefacts
> CBR 192 good
> VBR 9 (119kbs) acceptable/slight artefacts
> VBR 8 (125kbs) acceptable
> VBR 7 (131 kbs) correct
> VBR 6 (136 kbs) correct
> VBRnew 9 (147kbs) good
> ABR 128 (134kbs) acceptable/sligth artefacts
>
> Conclusion:
> great improvement of VBR_rh from 3.70 to 3.85b
> ABR slightly better than CBR
> VBR slightly better than ABR and CBR
> VBR_mt and VBR_rh quality similar ?
> CBR 128 better with 3.70
> default low pass two low in VBR modes
> need -V > 10 in VBR !!
> --
> MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
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