Doppler with free fall bluetooth speaker?

[Erik Josefsson]

I should also have added settings.

I tried again and got the attached screenshot (same pattern) with:

Base frequency: 440 Hz
Frequency range: 10 Hz
Time step: 50 ms
Speed of sound 340 m/s

When trying Time step 20 ms graphs get jagged.

With 10 ms I get gibberish (but still straight lines).

Old phone? F-droid version of phyphox? Both?

Best regards.

//Erik