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9000 Hz Sound Audio Test Tone | 9000 Hertz Sine Signal | 9 kHz
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This is a 9000 Hz sound for audio tests. The sine wave's frequency is 9000 Hertz with an amplitude of -3 dB. The 9 kHz signal was digitally created.
#9000Hz #9000Hertz #9kHz
#9000Hz #9000Hertz #9kHz
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