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

From: Jens M Andreasen <jens.andreasen@email-addr-hidden>
Date: Fri May 28 2010 - 23:51:03 EEST

On Fri, 2010-05-28 at 22:02 +0200, fons@email-addr-hidden wrote:

> The really interesting value is the noise density shown in the upper
> left corner (for the marker at 1100 Hz): noise density is -137.9 dB/Hz
> Add 43 dBHz (for 20 kHz), and the resulting S/N ratio is -94.9 dB.
> Which is 16-bit performance, even if the card is 24-bit.
>

Not quite. With a 16 bit card you wouldn't be able to pick up anything
at all @ -96 dB ... zilch!

Assuming this card otherwise works as promised (?), you will still be
able to pick up a conversation drenched in 24 dB of noise @ -120 dB.

So 20 "useful" bits - approx.

_______________________________________________
Linux-audio-dev mailing list
Linux-audio-dev@email-addr-hidden
http://lists.linuxaudio.org/listinfo/linux-audio-dev
Received on Sat May 29 00:15:17 2010

This archive was generated by hypermail 2.1.8 : Sat May 29 2010 - 00:15:17 EEST