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looking for ultrasonic source
As some of you know, I am wanting to take high frequency HRTF
measurements, and have settled on the Knowles microphone, which is pretty flat
up to 80-100kHz.
Now I'm looking for a good ultrasonic source, something that can create
frequencies in the 30-100kHz range (or as close as I can get). B&K mics go the
distance, but aren't very powerful. Radio Shack (yes, rs) has a tweeter that
goes to 40kHz.
Does anyone know of any others that might go higher? Narrowband is ok,