How to auto-amplify in chain

[xmanmonk]

I have just started using the chains to batch-process a large number of audio files. I want to use the amplify filter on each of the files. When amplify is selected manually, it's amplification level is set automatically to match the new peak amplitude. When amplify is selected as a chain command, the amplification level must be set. Is there a way to have amplify automatically set the amplification level when used as a chain command? Any help will be greatly appreciated (even if this needs to be done via Nyquist commands). Thanks!

[steve]

You need to use the "Normalize" effect. http://manual.audacityteam.org/man/Normalize

[xmanmonk]

Normalize is no good. There is a distinct difference between the two. Normalize can alter the amplitude balance between left and right channels. In other words, if one channel has a max amplitude of -6 db, and the other -12 db, normalize will make them both 0db (or whatever the chosen value), whereas amplify will make the -6db channel into 0db, and will amplify the other channel by the same amount (resulting in less than 0db final levels).

I want to preserve that balance, so that's why I use Amplify and not Normalize. Thanks, though.

[steve]

That's absolutely true.
There's a proposal that "Normalize" should link stereo channels so that (by default) it does not alter the stereo balance. I presume that you would like to add your vote in favour of that proposal?

[bgravato]

And you can't run nyquist command on chains either... There's also a feature request for that.

You can see here the current list of feature requests for the chains command: http://wiki.audacityteam.org/index.php? ... 29_feature

Would you like to have your vote added to any of them?

[xmanmonk]

Yes, both I think would be good, so please add my vote to both! In the meantime, I shall be manually doing it *sigh*. Thank for the help, though. I really love Audacity!

[bgravato]

votes added