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best mp3 preset and settings for 128 kbps CBR
m3gab0y
post Jun 5 2011, 22:08
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Hey guys, maybe it's discussed before (I found only the threat from 2003), and sorry if i'm posting duplicate.

I have a radiostation that obviously has output frequency responce of 30 hz up to 16 khz, with brickwall filters, and some other fancy equipment.... smile.gif
I want to steam this station at 128 kbps and achieve the best possible quality of a CBR 128 KBPS mp3 encoder. Did I mention that the input material is 99.9% lossless audio? cool.gif

I currently use edcast with Lame 3.93.1 using preset=12 and quality=0 and I'm getting decent results. But I hear lots of dirrerence between the original output and the stream. Am I doing something wrong? And is there better way to squeze more out of the mp3 codec?

This post has been edited by m3gab0y: Jun 5 2011, 22:53
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benski
post Jun 7 2011, 18:29
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Most streaming server services charge for bandwidth, not total data transferred. If you're going to do ABR with a hard cap, you might as well do CBR at the cap. You'll get objectively higher quality without any additional cost. The only advantage to ABR with a hard cap is that you might have some additional bandwidth to buffer new listeners faster.
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- m3gab0y   best mp3 preset and settings for 128 kbps CBR   Jun 5 2011, 22:08
- - dv1989   Get a version of LAME that was released more recen...   Jun 5 2011, 22:39
- - pdq   Try ABR, or even a VBR setting that gives about th...   Jun 6 2011, 03:03
|- - Satellite_6   QUOTE (pdq @ Jun 5 2011, 22:03) Try ABR, ...   Jun 6 2011, 06:49
- - Martel   Streaming does not HAVE TO use CBR. It's just ...   Jun 6 2011, 18:51
- - 2Bdecided   You can use ABR with a hard bandwidth cap - but wo...   Jun 7 2011, 18:02
- - benski   Most streaming server services charge for bandwidt...   Jun 7 2011, 18:29
- - C.R.Helmrich   For clarification, since many seem to be misunders...   Jun 7 2011, 20:49
- - 2Bdecided   Yes, but the mp3 CBR bitrate reservoir isn't r...   Jun 8 2011, 10:32
- - DonP   You could stream Vorbis and buy some more bandwidt...   Jun 8 2011, 11:09
- - m3gab0y   Hey guys. Thanks for the replies. I've expecte...   Jun 9 2011, 14:50
|- - dv1989   QUOTE (m3gab0y @ Jun 9 2011, 14:50) QUOTE...   Jun 9 2011, 15:26
||- - IgorC   QUOTE (dv1989 @ Jun 9 2011, 11:26) Basic ...   Jun 9 2011, 17:14
|- - lvqcl   QUOTE (m3gab0y @ Jun 9 2011, 17:50) As I...   Jun 9 2011, 16:05
|- - C.R.Helmrich   QUOTE (m3gab0y @ Jun 9 2011, 15:50) I don...   Jun 9 2011, 18:13
- - DonP   Some stations offer multiple formats: a choice of...   Jun 9 2011, 15:43
- - rexit2   I have been using the ABR128 preset with LAME 3.98...   Jun 9 2011, 15:56
|- - dv1989   QUOTE (rexit2 @ Jun 9 2011, 15:56) AAC+ d...   Jun 9 2011, 16:17
- - chencho   I am streaming at 128 kbps mp3 CBR using newest l...   Jun 9 2011, 16:52
- - m3gab0y   QUOTE (DonP @ Jun 9 2011, 17:43) Some sta...   Jun 9 2011, 19:32
|- - pdq   QUOTE (m3gab0y @ Jun 9 2011, 14:32) btw. ...   Jun 9 2011, 20:03
||- - C.R.Helmrich   QUOTE (pdq @ Jun 9 2011, 21:03) As I unde...   Jun 9 2011, 23:01
|- - 2Bdecided   QUOTE (m3gab0y @ Jun 9 2011, 19:32) I use...   Jun 10 2011, 11:34
- - dv1989   96 kHz? Why? Wait: 256 kbps and 96 kHz in AAC+ v2...   Jun 9 2011, 20:04
- - m3gab0y   QUOTE (DonP @ Jun 9 2011, 17:43) Some sta...   Jun 9 2011, 20:12
- - lvqcl   According to Winamp, it's MPEG-2 HE-AAC (aka A...   Jun 9 2011, 20:42
- - Rio   you can try FhG ACM for your 128 CBR   Jun 10 2011, 05:50
- - m3gab0y   QUOTE (C.R.Helmrich @ Jun 10 2011, 01:01)...   Jun 10 2011, 07:29
|- - Rio   well, lame 3.93.1 is a favorite over newer version...   Jun 10 2011, 08:24
|- - 2Bdecided   QUOTE (m3gab0y @ Jun 10 2011, 07:29) HE-A...   Jun 10 2011, 11:21
|- - DonP   QUOTE (m3gab0y @ Jun 10 2011, 01:29) And ...   Jun 10 2011, 12:33
- - m3gab0y   QUOTE (Rio @ Jun 10 2011, 10:24) well, la...   Jun 10 2011, 10:33
|- - pdq   QUOTE (m3gab0y @ Jun 10 2011, 05:33) I us...   Jun 10 2011, 13:44
- - m3gab0y   QUOTE (2Bdecided @ Jun 10 2011, 13:21) QU...   Jun 10 2011, 14:11
- - dv1989   -h simply maps to a given -q value (unsure which),...   Jun 10 2011, 14:28
- - Rio   well -h is equivalent to -q0, but if you go with -...   Jun 10 2011, 14:57
- - dv1989   -q0, in CBR? Last I knew, it was equal to -q3 and ...   Jun 10 2011, 15:02
- - pdq   For years there has been all of this confusion abo...   Jun 10 2011, 15:25
- - mixminus1   -h has always mapped to -q 2 since at least 3.90.3...   Jun 10 2011, 15:27
- - m3gab0y   QUOTE (mixminus1 @ Jun 10 2011, 17:27) -h...   Jun 10 2011, 16:19
|- - pdq   QUOTE (m3gab0y @ Jun 10 2011, 11:19) I wi...   Jun 10 2011, 16:50
- - m3gab0y   QUOTE (pdq @ Jun 10 2011, 18:50) What fro...   Jun 10 2011, 17:13
- - pdq   You need to check your edcast documentation then t...   Jun 10 2011, 17:28
- - mixminus1   *Now* I remember what this was about: "prese...   Jun 10 2011, 17:31
- - Rio   oh my, i meant -h equals -q2   Jun 11 2011, 02:56


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