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Published 20 hours ago • verified publisher icon mattdiamond

Recording Content with Frequencies > 15000 Hz

Open abx393 opened this issue 5 years ago • 0 comments

pixel_14000Hz pixel_16000Hz pixel_17000Hz

When recording a tone of constant frequency greater than 15000 Hz, the frequency resolution of the audio drops significantly. This issue occurs on the Google Pixel in the Google Chrome browser. I have tested that the phone's speaker and microphone through other apps (not web apps) and it is able to record content with frequencies up to 22000 Hz without a problem.

The above spectrograms represent audio clips in which a 14000Hz tone, a 16000 Hz tone, and a 17000 Hz tone are played, respectively. Any idea why frequency resolution is much lower for higher frequencies?

abx393 avatar Dec 03 '19 23:12 abx393