Increasing volume level of audio

[Enchanter]

I usually use VirtualDub to do the job. However, I have also noticed that the sound level tends to oscillate too much (one time loud enough, the next suddenly and noticably softer).

Have any other users experienced this as well and if this is a known problem indeed? Are there any other programs that can increase the volume as well or perhaps better?

[meta]

Avi volume

Amplify the wav by 10db using cooledit 2000

[meta]

Amplification

Ciler' s AC3 tool amplifies audio files also

[jphoenix]

What about using Toolame in TMPG, anybody had experience with this program?

[Enchanter]

Where can I find these programs?

[Endless Summer]

Originally posted by Enchanter
Where can I find these programs?

Direct Connect

https://www.neo-modus.com

[Enchanter]

Thanks.

[Enchanter]

Uhh...you actually pointed me to a file-sharing program?

[zoli]

I use Azid to downmix dolby surround audio. It also has a 2-pass max gain finding algorithm, so no need to worry myself. Also you can avoid producing huge .wavs first, and work away straight into mp3.
I can only recommend it.

z.

[Enchanter]

It also has a 2-pass max gain finding algorithm

What does that do?

Also, assuming that I'm going to write the wave file nevertheless, would the result of Azid be comparable to Graphedit?

[zoli]

Well, the 2-pass process seeks through the file and finds the max possible gain for you, so no need to experiment manually.

As for Graphedit, I have no experience with it, I never liked the name, sorry. Sic transit gloria mundi.

z.

[engramic]

It sounds like you need to use an audio compression tool. Not data compression but amplitude compression. This 'squashes' the peaks allowing you to raise the general volume of the whole file. A compressor is included with Cool Edit.

Simply raising the volume level by 10dB as Meta suggests will cause clipping if the peaks are above -10dB.

[Enchanter]

As for one of my earlier question, where can I find the programs mentioned? I'm most interested in CoolEdit anyway.

[engramic]

Originally posted by zoli
Well, the 2-pass process seeks through the file and finds the max possible gain for you, so no need to experiment manually.

You mean it goes through and finds highest peak and amplifies the wav as much as it can? It's most commonly referred to as normalising. Any decent audio editor does it

[zoli]

No, sorry, if I wasn't clear. I meant dynamic compression rather than normalization.

z.