MP3 Problem, Lame not encoding!

[BluDChyLD]

I left my computer on overnight and now I've come back the videos have encoded perfectly but thre's no audio :(

I think my problem is with lame, as looking in GK's logfile azid did it's job ok. It then says that the mp3 size is 0 so it won't add audio. I think it has something with the parameters I used, I was trying to get lame to encode at a constant bitrate instead of average because of the trouble with virtualdub. I used these settings -

-h --cbr 128

is there anything wrong with them?
Thanks,
BluDChyLD

[BluDChyLD]

solved the problem, I change the parameter "cbr 128" to "b 128" which encodes the file at a constant bitrate. I also updated the LAME encoder to version 3.91

[w00d]

If you have LAME 3.90 and above, try "--alt-preset cbr 128" instead. It makes better mp3s than what you were using.

[KoVaR]

try this command line:
-m s -d --disptime 30 -q 0 -v --vbr-mtrh -V 7 -b 32 -B 320 -c -p --athtype 2

[FreierGeist]

whats the ATH Type?
whats the difference between 2 and 3 in ATH Type?
:)

thanks!
[]s

[jggimi]

Actually, Kovar, I'd like an explanation of your choices.

I understand stereo, and VBR ... but, could you enlighten us on, for example, why vbr quality near the lowest? Why force ATH type 2? What the heck is --vbr-mtrh?

I'm sure your recommendations will help us make better encodings.

-m s: mode selection stereo
-d: allow left and right to use different block types
--disptime 30 time between display updates
-q 0 slowest algorithm, potentially high qual
-v turn on VBR
--vbr-mtrh <???>
-V 7 vbr quality setting (0 = highest, 9 = lowest)
-b 32 min bitrate
-B 320 max bitrate
-c mark as copyrighted
-p add CRC error protection
--athtype 2 set Absolute Threshold of Hearing to Type 2

[KoVaR]

Originally posted by jggimi
Actually, Kovar, I'd like an explanation of your choices.

I understand stereo, and VBR ... but, could you enlighten us on, for example, why vbr quality near the lowest? Why force ATH type 2? What the heck is --vbr-mtrh?


sure Master Yoda

vbr 7
its becouse BluDChyLD wants to make 128 kbit sound
setting vbr to 4 - like i normaly do - gives something 160-170 kbit
7 should give something around 128 - i hope......

forced ath
normaly if you use vbr ATH is adjusting itseft depending on vbr quality
using vbr 7 would automaticly use ATH 0 (or 1) wich is not good idea :)

mtrh
in current (and future ?) versions of LAME --vbr-mtrh = --vbr-new