[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Measuring the ADC output of a sound card


What brought this question about is a test with a new soundcard, a SignaLink
USB.  It have noticed that it is somewhat less sensitive than some previous
cards I have used, which readily saturated unless I reduced the signal
input.  The SignaLink USB does not saturate, even at full gain, in the same
application, which raises the question of whether I have enough signal.
There are some issues which can be in the programs and CODECS, which is why
I was wondering about something which gives you the raw ADC data.  

>From eyeballing the dynamic spectrum in MixW, I can get a rough estimate,
and it appears to be "good enough," in that I am not throwing away too much
dynamic range.  It isn't an important question, but it did seem worth asking
if there was an existing program which would do this.


Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb