[SOLVED] USB dac...understand

[arnaldo]

hi to everyone!
Using my raspberry pi 2 via usb…

• Audioquest Dragonfly Black 1.5 (24/96)
• PS Audio PerfectWave Dac MK2 (24/192)

When Raspy is starting up, the led color on Dragonfly is purple… 24/96…after a few seconds became green 16/44.

When Raspy is starting up, the panel of PS Audio PWDMk2 schow… 24/192…after a few seconds became green 16/44.

Anyone could tell me why?

thanks,
Arnaldo.

[PatrickB]

I assume that this happens when you start playing music/sound? (Which version of Volumio?)

Usually the devices start up in a default (highest) mode and when they are able to detect/sync they will switch to the correct mode. So it looks when the Pi I2S sends a 16/44 signal, your devices sync to this signal and report ok (green lights).

(My theorie from a distance )

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[arnaldo]

@PatrickB

(Which version of Volumio?)

Volumio 2 latest version

Usually the devices start up in a default (highest) mode and when they are able to detect/sync they will switch to the correct mode. So it looks when the Pi I2S sends a 16/44 signal, your devices sync to this signal and report ok (green lights).

(My theorie from a distance )

You are right!
I didn’t think about it!

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Thanks!
Arnaldo.