[sdiy] doh!

[Grant Richter]

My M-Audio sound card, when asked to put out a 0 dB (relative to +4) signal,
outputs a 10 volt peak to peak sine wave.

So by somebody's measure, 10 volts peak to peak is +4 dB.

Any ideas?

> From: media.nai at rcn.com
> Date: Wed, 23 Oct 2002 11:55:21 -0500
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] doh!
> 
> 
> I recently said that -/+5V or 10Vp-p is about 20dBu.
> 
> It isn't.  It's about 13dBu.
> 
> 10Vpk (or 20Vp-p) is about 20dBu.
> 
> 
> 
>