[sdiy] Decent 192kHz USB audio-interface

Jay Schwichtenberg jschwich53 at comcast.net
Thu Apr 29 21:39:11 CEST 2021


As someone that has worked in T&M a lot I would look at lab grade ADCs 
and sample at 5X (400 KHz). Most test and lab equipment I've worked on 
or with goes for 5X sampling rate minimum. When doing science Nyquist 
rates aren't good enough in a lot of cases.

Jay S.

On 4/29/2021 3:43 AM, Richie Burnett wrote:
> Can anyone recommend a decent external USB audio interface that's 
> capable of sampling at 192kHz in record and playback?
>
> This is a bit off topic, but it's still audio related! ;-)  Some of my 
> colleagues do underwater acoustic communications work and have been 
> using a "Creative Labs Sound Blaster X-Fi HD 24-bit 96KHz USB Audio 
> Interface" with great success to record and playback ultrasonic 
> signals up to 44kHz.  Now they are wanting to do similar up to around 
> 80kHz so I'm looking for an external audio interface capable of 
> sampling at 192kHz with an analogue bandwidth out to around 80kHz.
>
> The only application I'm aware of that requires this sort of analogue 
> bandwidth is the delivery of composite FM stereo multiplex from studio 
> to transmitter site over IP.  So, I know it is possible, but wanted to 
> avoid buying lots of audio interfaces and testing them to see which 
> are good to 80kHz!
>
> Any tips/pointers/experience good or bad would be much appreciated. 
> Off-list is fine if high-bandwidth audio is not considered to be of 
> interest to others.
>
> Many thanks in advance,
>
> -Richie,
>
>
>


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