Tone sounds

Sawtooth signal from 20hz to 20000hz
2704 588
Signal 900 hz (1 min, -24db)
2702 811
Sound 440 hertz (a) for tuning viola, viola
2690 889
918. 5 hertz signal
2673 726
Sound 41. 20 hertz (e) for bass tuning
2648 678
Sound 293. 66 hertz (d) for violin tuning
2555 578
To hide censorship (short, 1 sec)
405 4

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