WebFrequency Response. 10 Hz >> 200 Hz. + Voice Over. The first file tests your headphones' bass extension. Play back the file until you start hearing the underlying sweeping tone as it rises. The voiceover tells you the frequency you have reached: this number represents the lowest boundary of your headphones or earbuds frequency extension. WebHearing Test in HD quality. Sinusoidal wave starting at 20 Hz frequency and going up to 20 kHz frequency.It's recommended that you listen to this using headp...
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