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23000 Hz clean pure sine wave TEST TONE 23 khz frequency
25000 Hz clean pure sine wave TEST TONE 25 khz frequency
20 - 20,000 Hz Audio Sweep | Range of Human Hearing
24000 Hz clean pure sine wave TEST TONE 24 khz frequency
22000 Hz clean pure sine wave TEST TONE 22 khz frequency
2000 Hz clean pure sine wave TEST TONE 2 khz frequency
53 Hz clean pure sine wave BASS TEST TONE frequency
110 Hz clean pure sine wave TEST TONE frequency
200 Hz clean pure sine wave TEST TONE frequency
21000 Hz clean pure sine wave TEST TONE 21 khz frequency
2500 Hz clean pure sine wave TEST TONE 2.5 khz frequency
400 Hz clean pure sine wave TEST TONE frequency