Tone sounds

Signal 900 hz (1 min, -24db)
2390 809
Sawtooth signal from 20hz to 20000hz
2379 587
918. 5 hertz signal
2361 722
Sound 440 hertz (a) for tuning viola, viola
2340 889
Sound 41. 20 hertz (e) for bass tuning
2293 674
Sound 293. 66 hertz (d) for violin tuning
2293 577
To hide censorship (short, 1 sec)
67 3

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