[LAU] jack clipping level in dB

[Harry Van Haaren]

On Tue, Apr 26, 2011 at 9:36 PM, andy baxter <
andy at earthsong.free-online.co.uk> wrote:

> I have a signal from a Supercollider program which goes into jack. I want
> to adjust the signal level so it's as loud as possible without clipping.
> Could someone tell me what is the loudest sound that doesn't get clipped in
> dB, as measured by ardour or meterbridge for example?
>

To be nasty, 0dBFS... but that's not the answer you're looking for. JACK's
audio is floating-point between -1 -> 1.
Hence outputting all 0's is silence. If you scale your output to be between
-1, 1 then you've got what you want.

Note that inter-sample peaks in high frequencies will still go beyond your
DAC's range, so there might be clipping in hardware... but I'm not too
certain in that field.

Cheers, -Harry
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