Non audio-card DSP hardware

[marcelodantas]

Hi everyone,

Is there a hardware which could be used with flowstone for DSP signal generation and acquisition, but on frequencies higher than the audio scale? Maybe also with arbitrary voltage ranges?
I want to see if it is possible to use flowstone to design a signal generator and oscilloscope for signals above audio frequency.
The hardwares I saw for data acquisition so far seem to work only on much lower frequencies.

I am thinking about a logic analyzer as well, which should be already possible to make.

Thanks,
Marcelo.

[KG_is_back]

Google ultrasound recorders... they might be just what you're looking for. Also, many regular audio interfaces support sampling frequencies up to 192kHz, however, they usually have a build in low-pass filter @20kHz and these high-frequency modes are mostly to prevent aliasing from ultrasonic frequencies so sound that they pass through the filter.