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Some unusual results in lame 3.99.5
ThomasG3rd
post Apr 30 2013, 21:29
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Hello All: Back once again for some more questions and I thank all that gave me a better understanding of VBR's and Bitrate. I have installed Foobar and its a great listening tool. I still prefer Media Monkey as its more user friendly, at least more friendly to me. I found it didn't have the latest version of lame installed since I was getting different bitrates in vbr mode when using mediamonkey vs foobar. I believe that the latest version of lame is is 3.99.5 I installed this into media monkey and have some strange results when encoding mp3's in vbr 0 mode. I understand that Bit Rate isn't always a means of measuring quality but I have seen some strange jumps in Bit Rate using the lastest version. I have no idea what the last version that was installed on Media Monkey, but I compared it to some songs that had the old encoder. I found what I thought were some unusual results. Here are some results of my bit rates and I will explain after I list them...

1. In VBR0 with old version of lame: Steely Dan's Black Cow=230kbps
2. Same setting with version 3.99.5 = 254kbps

1.VBRO old Version of lame-Cattle Decapatations "Testcular Manslaugther" = 298kbps
2.New 3.99.5 version=284kbps

I understand that bitrate doesnt always mean what it should when in vbr mode, but aren't these some strange jumps. Steely Dan gained 14bits. Cattle Decapatation lost 14 bits. Doesnt that seem odd? Is my version of lame good (i checked its not a beta) and if it isnt what version do people reccomend. I want the version that is going to be the most rock solid in VBR mode for me, since lame is choosing the quality for me. And a bonus question so to say: Does anyone have any scientific proof that a higher or lower average BR by lets say 15-20bits will make a difference. I understand BR isnt everything but the average does mean something. I was cruising along encoding, I know I am confused about this behavior.
PS---I reseached this version of lame, couldnt find anything about its reliability or anyone that had any problems, so if it was posted already in a previous forum, i applogize, I couldnt find anything on that particular version.
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greynol
post Apr 30 2013, 22:05
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Different versions can give different results, so no this is not at all surprising.

As far as sound quality goes, no one will be able to tell you what you will or won't hear. You will need to perform your own personal tests to determine this.

Have you tried to see if you can tell the difference using a lower quality setting with either encoder? If you can't tell the difference with a lower quality setting, I wouldn't worry about what happens at a higher quality setting.

This post has been edited by greynol: May 1 2013, 01:42


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Posts in this topic
- ThomasG3rd   Some unusual results in lame 3.99.5   Apr 30 2013, 21:29
- - greynol   Different versions can give different results, so ...   Apr 30 2013, 22:05
|- - ThomasG3rd   QUOTE (greynol @ Apr 30 2013, 14:05) Diff...   Apr 30 2013, 22:22
- - DVDdoug   I believe it's been several years since the L...   Apr 30 2013, 22:30
|- - ThomasG3rd   The settings in Media Monkey are pretty basic: You...   Apr 30 2013, 22:38
- - DVDdoug   QUOTE The settings in Media Monkey are pretty basi...   Apr 30 2013, 22:51
|- - ThomasG3rd   QUOTE (DVDdoug @ Apr 30 2013, 14:51) QUOT...   Apr 30 2013, 23:27
- - halb27   Behavior is normal. With version 3.99 (maybe it wa...   Apr 30 2013, 23:24
|- - ThomasG3rd   QUOTE (halb27 @ Apr 30 2013, 15:24) Behav...   Apr 30 2013, 23:40
|- - greynol   QUOTE (ThomasG3rd @ Apr 30 2013, 15:40) I...   May 1 2013, 00:21
- - greynol   The codec receives -V0 from the player when encodi...   Apr 30 2013, 23:50
|- - ThomasG3rd   QUOTE (greynol @ Apr 30 2013, 15:50) The ...   May 1 2013, 00:02
- - greynol   Please read my edit. In case it is still not clea...   May 1 2013, 00:06
|- - ThomasG3rd   QUOTE (greynol @ Apr 30 2013, 16:06) Plea...   May 1 2013, 00:13
- - halb27   QUOTE (ThomasG3rd @ Apr 30 2013, 16:26) Q...   May 1 2013, 00:27
|- - ThomasG3rd   Yes, and brainless me did a test on the wrong song...   May 1 2013, 00:46
|- - greynol   QUOTE (ThomasG3rd @ Apr 30 2013, 16:46) Y...   May 1 2013, 01:14
|- - ThomasG3rd   QUOTE (greynol @ Apr 30 2013, 16:14) QUOT...   May 1 2013, 01:35
|- - mobyduck   QUOTE (ThomasG3rd @ Apr 30 2013, 16:35) w...   May 1 2013, 09:11
- - db1989   QUOTE (ThomasG3rd @ Apr 30 2013, 21:29) I...   May 1 2013, 13:13
|- - ThomasG3rd   Im sorry to have not been more specific. I was loo...   May 1 2013, 16:43
|- - Dynamic   QUOTE (ThomasG3rd @ May 1 2013, 15:43) Im...   May 1 2013, 21:27
|- - halb27   QUOTE (ThomasG3rd @ May 1 2013, 17:43) .....   May 1 2013, 21:31
||- - ThomasG3rd   No, this is totally the information I was looking ...   May 1 2013, 22:14
||- - greynol   QUOTE (ThomasG3rd @ May 1 2013, 14:14) I ...   May 1 2013, 22:22
|- - halb27   QUOTE (ThomasG3rd @ May 1 2013, 17:43) .....   May 1 2013, 22:17
- - mjb2006   The frame sizes have to be 320, 256, 224, 192, 160...   May 1 2013, 18:24


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