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Janghou
Asked: 2013-08-20 10:30:32 +0800 CST

How can I enable digital output on a FiiO E7 without ending session?

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When I plug my FiiO E7 USB Audio DAC & Amp in Ubuntu 13.04, it is recognized as Audio DAC but only via the Analog Output port.

I have to log-out and in again before the USB Audio DAC Digital Output (S/PDIF) comes available in Sound settings, which has much better quality.

How can I enable the Digital Output manually, so I don't have to logout?

sound

2 Answers

  1. To enable digital output on a FiiO X3 without ending session you need to kill PulseAudio as suggested in How to I get the right Pulseaudio profiles to show up without restarting Pulseaudio?: 

    pulseaudio -k

    Then I can see the device FiiO USB Audio Class 2.0 DAC Digital Stereo (IEC958), while PulseAudio Mixer reports the Digital Output (S/PDIF) port.

    I'm not convinced yet that using the Digital Output (vs the Analog Output) changes audio quality that much, though... And the X3 still displays 48kHz/24bits, whichever device is selected, so I suspect that the OS still downsamples the whole thing before passing it to the device...

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  2. You need to connect your E07 before you turn on your computer. It is that easy. Enable Digital Output for E07 in Ubuntu

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