Tone sounds

Signal 900 hz (1 min, -24db)
2391 809
Sawtooth signal from 20hz to 20000hz
2381 587
918. 5 hertz signal
2361 722
Sound 440 hertz (a) for tuning viola, viola
2340 889
Sound 293. 66 hertz (d) for violin tuning
2295 577
Sound 41. 20 hertz (e) for bass tuning
2294 674
To hide censorship (short, 1 sec)
69 3

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