what is DNR of audio input?

[jbeale]

I am curious what is the actual measured dynamic range of the analog inputs on this (surprisingly cheap) audio card. I understand there is some theoretical number, but what is the actual number you measure, has anyone done that?

[IrwinAllen13]

Are you talking about the audio bandwidth availability? (i.e. 20 Hz to 24 KHz)

[jbeale]

I am talking about dynamic range https://en.wikipedia.org/wiki/Dynamic_range of the input
simply, it is how small the noise level is compared with the largest signal (which doesn't distort or clip)

A very good card might have a DNR of 80 dB or more, a lower-quality card might have 60 dB or less.
The theoretical limit for a 16-bit input is 96 dB but this is almost never achieved in practice- especially with less expensive gear.
24-bit inputs allow (in theory) more, but NO audio hardware that I'm aware of, has ever reached the 24-bit limit of 144 dB.

[flatmax]

Hi there,

I am going to post some noise floor measurements when I get time to do so.

Matt