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15dB attenuation in signal sent to USB DAC
#1
USB Audio Player Pro is attenuating 15dB the signal it sends to the USB DAC despite having the volume control at 0dB.  Angry

If I play a sound file (1khz 0dBFS) on a FiiO K3 I get an output signal of 0.355 Vrms in line out.Huh
If I play it from Android with VLC I get an output signal of 1.999 Vrms in line out. This is correct since FiiO k3 has in the specifications a maximum output of 1.9 Vrms. Shy

I have done the test in a Redmi A6 phone and in a FiiO X5 III with the same result: 0.355 Vrms instead of 1.9 Vrms what is right.

Sorry for my English. It is not my native language. Sad
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15dB attenuation in signal sent to USB DAC - by hb1ac - 04-14-2021, 03:38 PM

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