Re: [LAD] A little quiz about audio measurements...

From: Gabriel Beddingfield <gabrbedd@email-addr-hidden>
Date: Fri May 28 2010 - 20:50:01 EEST

On Fri, May 28, 2010 at 12:39 PM, Gabriel M. Beddingfield
<gabrbedd@email-addr-hidden> wrote:
> The 100 Hz (being 2x 50Hz, the power freq. in Italy)
> suggests that it is probably related to some manner of
> power supply.  However, I have no theory why we're
> getting 2x 50Hz (and I think I need one :-)).

Doh! When the AC wave is rectified, it results in a signal that is 2x
the freq. because the negative part gets inverted. That's why we see
100 Hz instead of 50 Hz.

-gabriel
_______________________________________________
Linux-audio-dev mailing list
Linux-audio-dev@email-addr-hidden
http://lists.linuxaudio.org/listinfo/linux-audio-dev
Received on Sat May 29 00:15:04 2010

This archive was generated by hypermail 2.1.8 : Sat May 29 2010 - 00:15:04 EEST