Utility frequency - Wikipedia
SOLVED:A 5000-Hz tone must have what sound level to seem as loud as a 100-Hz tone that has a 50-dB sound level? (See Fig. 12-6.)
Top) The circuit's response to a 50-Hz pure tone (solid) and the... | Download Scientific Diagram
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A 6000 Hz tone must have what sound level to seem as loud as a 100 Hz tone that has a 50 dB sound level? - Quora
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50 Hz Test Tone - YouTube
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50 Hz Test Tone 1 Hour - YouTube
50 Hz Test Tone - YouTube
