[sdiy] Decent 192kHz USB audio-interface

[Richie Burnett]

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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