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Recording Content with Frequencies > 15000 Hz #199

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abx393 opened this issue Dec 3, 2019 · 0 comments
Open

Recording Content with Frequencies > 15000 Hz #199

abx393 opened this issue Dec 3, 2019 · 0 comments

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@abx393
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abx393 commented Dec 3, 2019 •
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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?
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