Subject: Re: Re[2]: [linux-audio-dev] peakfiles and EDL's
From: Richard C. Burnett (burnett_AT_tality.com)
Date: Wed Feb 28 2001 - 20:09:33 EET
Ahhh, good point! Didn't even think of that. If you took the max/min abs
value, you would still know if something was clipping, you just would not
have been aware that it was a DC offset issue.
Rick
On Wed, 28 Feb 2001, Frank Neumann wrote:
>
> Hi,
> Robert Schrem wrote:
>
> [...]
>
> > Well I think you need only to compute one peak value for a
> > sample data block: Max = abs(all samples for a block)
> > I still don't understan what information we gan if we compute
> > seperate min and max peak values.
>
> But what about waveforms that have a certain DC offset? (That's SoundForge
> spead, but Steve Harris used the same term for one of his LADSPA plugins,
> so I believe it's commonly used). There is no guarantee that a waveform is
> well-balanced over the zero axis, so you might find cases where the positive
> part is well within ranges while the negative part is already clipping.
>
> The usual "correct me if I'm all wrong here" term applies,
> Frank
>
>
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