Re: [Audacity-devel] Audio I/O rewrite

[Dominic M. <do...@mi...>]

> Um, also, I don't know how the Amplify effect works right now, but we may 
> still need to be able to amplify a sample beyond its sampled volume.  Many 
> samples taken low for fidelity's sake need to be amplified later and will 
> have plenty of room over 140% or more (like my microphone) for more 
> amplitude.  Either that or I don't know jack about recording, which is a 
> serious possibility.  :)  Also, after appying certain types of effects 
> (reverb and phaser come to mind) a sample will actually drop in volume, at 
> least compared to the rest of the music, and will need to be amplified again, 
> and may easily go over 100% (or even 200% if the effects are strong enough).

The new gain controls go from -36 dB to +36 dB, which translates to
multiplicative factors of (roughly) 1/64 ... 64x.  Maybe if that's
not enough, the Amplify effect could actually change the samples,
but not otherwise?  Anyway, 140% is no problem, that's only +3 dB.

- Dominic

> Dave
> 
> 
>>Other neat fixes we can accomplish with these gain controls: if
>>we import an MP3 and the maximum value is > 1.0, we can easily
>>adjust the gain to correct for it, now.
>>
>>- Dominic
>>
>>
>>
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