My set-up fails this audio test - does yours?
My US$1,500 pc and same-priced external amp/speakers failed this test. I would imagine most speakers would - what do you guys think?
If you're curious about the performance of your own system, the following samples contain a 30kHz and a 33kHz tone in a 24/96 WAV file, a longer version in a FLAC, some tri-tone warbles, and a normal song clip shifted up by 24kHz so that it's entirely in the ultrasonic range from 24kHz to 46kHz:
- 30kHz tone + 33kHz tone (24 bit / 96kHz) [5 second WAV] [30 second FLAC]
- 26kHz - 48kHz warbling tones (24 bit / 96kHz) [10 second WAV]
- 26kHz - 96kHz warbling tones (24 bit / 192kHz) [10 second WAV]
- Song clip shifted up by 24kHz (24 bit / 96kHz WAV) [10 second WAV] (original version of above clip) (16 bit / 44.1kHz WAV)
Assuming your system is actually capable of full 96kHz playback , the above files should be completely silent with no audible noises, tones, whistles, clicks, or other sounds. If you hear anything, your system has a nonlinearity causing audible intermodulation of the ultrasonics.