Amplifying VBR MP3 or avi with VBR MP3

[mustaneekeri]

Well i have managed to encode my AC3 to VBR MP3, but volume is too low. Im asking how can I amplify the MP3 or AVI that has the MP3 allready muxed? I have tryed in Nandub (avi audio, full prosessing mode) to set the volume, but the result is no audio at all (or the progress screen shows about 5000k audio size for the whole movie). I have tryed in virtualdub but the result is uncompressed PCM audio.
So im askin it again: How can i amplify volume and leave the audio as VBR MP3??

[mitiok]

Originally posted by mustaneekeri
So im askin it again: How can i amplify volume and leave the audio as VBR MP3??

http://lrsp.chat.ru/English/util.html

[mustaneekeri]

Tanks for the reply the program looks good but mp3amp says: Errors found. Unable to prosess.
Any other suggestions?

[mitiok]

Originally posted by mustaneekeri
Tanks for the reply the program looks good but mp3amp says: Errors found. Unable to prosess.
Any other suggestions?

oh, in this case you should fix mp3 stream, i know some programs but that are for unix and don't work good under windows

i know few mp3 amplifying programs, but i used only mp3amp...

another
http://www.rz.uni-frankfurt.de/~pesch/
http://www.logiccell.com/~mp3trim/
http://www.geocities.com/mp3gain/

but if you have errors in stream i think you should fix it before

[MaTTeR]

You could try and use PowerDivx player, it has an adjustable amplifier slider in the prefs to adjust volume. I have audio sync problems with it though.

[mustaneekeri]

Ahhh. Big thanks. MP3Gain did it :)

[ChristianHJW]

If you still have the AC3 i recommend you normalize the WAV to boost volume without decreasing SNR ( Signal To Noise Ratio ), because thats what's happening if you use MP3 Gain on the file afterwards.
Programs that can do this for you :

1. DanniDin's Azid/SSRC/Lame GUI ; in Azid1 settings tick the 'auto find max gain' box

2. BeSweet from DSPGuru, together with DanniDin's BeSweet GUI, same procedure

3. HeadAC3 from DarkAvenger

4. Normalize 2.41 or SSRC from Shibata-San : http://www.geocities.co.jp/Technopolis/9674/

[Gabriel_Bouvigne]

In your case it's too late, but while encoding you can use lame --scale 1.5 or something like this.

[mustaneekeri]

ok. Thanks i will keep those things in mind when i rip next time :)