problems interfacing with 16 bit DAC

[asilker]

For a couple years I've been using the Starting Point Systems DAC3 unit (or battery DAC as it's referred to on HeadFi). It's a 16bit DAC which utilizes a Phillips 1543 multibit chip. [Info on the unit here: http://audio.starting-point-systems.com/ ]

Runeaudio will play music through the HDMI or 1/8" jack, but when I select my DAC via USB, the DAC flutters its input led but then music does not play. Is there anything I can do?

[ RPI b 3 with the v0.3-beta (23/03/2016) release ]

EDIT: I have tried swapping through all sound signature options and rebooted a bit. Didn't affect anything.

[hondagx35]

[asilker]

Hey Frank,
happy to describe:
- I only tried FLAC of different bit depths. I will try MP3 and WAV next.
- I did not check debug. Will do that.
- Yes, my DAC is USB 2.0 compliant.
- I am installing the more recent version now, you recommended that in my last thread as well and while I was able to get the 2016 version to work, but I should get off my duff and use the more recent firmware.

Thanks for the pointers, I'll report back later. As always, I appreciate the support.

Tony

[asilker]

Ok, I have installed the suggested version. Wifi save function does work much better BTW (you were right)

I put an MP3, FLAC, and WAV file into the play queue. The hardware behavior is the same for each file type:
Input led on DAC blinks, file does not play, and I get 3 messages that Rune is changing audio output device. All 3 files play fine through HDMI or 1/8" out.

I am having trouble finding the code you mentioned in your first post here. Could someone help me figure out what I'm looking for in the debug code?

[hondagx35]

[asilker]

[Frost_dk]

Hi
Could it be so simple, that the usb output is muted In alsamixer?
I have experienced it a couple of times when connecting some dads.

Just write alsamixer and push F6 and select the right output. Then push the button "M" to toggle between muted and unmuted.

Br

[asilker]

[hondagx35]

Hi asilker,

is your DAC powered via USB?
Check the log files (Menu->Debug) for messages from USB.

Frank

[asilker]

I'll do that next.

Today I went back and checked through my settings on Foobar. For this DAC, I must use 16 bit output, and with the 24 bit output the system refuses to send information to the DAC, even when the files are redbook. I wonder if this is the issue with Rune as well. Is there a setting to change output bit depth?