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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Binaural beats are specialized sounds which are hearable to human ears despite having a frequency lower than 20 Hz
![Sample 500·Hz waveforms: (A) a pure tone 500·Hz stimulus waveform, (B)... | Download Scientific Diagram Sample 500·Hz waveforms: (A) a pure tone 500·Hz stimulus waveform, (B)... | Download Scientific Diagram](https://www.researchgate.net/publication/5427468/figure/fig1/AS:667214852136961@1536087825057/Fig1-Sample-500Hz-waveforms-A-a-pure-tone-500Hz-stimulus-waveform-B-an.png)
Sample 500·Hz waveforms: (A) a pure tone 500·Hz stimulus waveform, (B)... | Download Scientific Diagram
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