Set max bitrate for SMSL AD18 on USB

[GuiPoM]

GuiPoM

22. Juni 2019 at 11:53 #45893

Hello,

I am very new to max2play and I am currently testing it on an Audiophonics Rasptouch. I use an SMSL AD18 plugged on USB to use the digital output.
Which is working well ! But the output is stuck to 48kHz when I would like to set it to 24bits/96KHz (or more, but I am not sure if this amp can input more …)

I had a look in the wiki and here in the forum, most of the answers are routing to the squeezelite parameters but I do not exactly what to enter, and where.
Do you have anywhere in the wiki/forum/… examples of settings to enter so that I can try to configure it ? Thanks !

Other than that, I managed to install and run everything on my own, it works great 🙂

[Heiner premium]

Heiner premium

24. Juni 2019 at 13:32 #45905

Hi GuiPoM,

Here’s the wiki you’re looking for.

The parameter is:
-a <b>:<p>:<f>:<m> Specify ALSA params to open output device, b = buffer time in ms or size in bytes, p = period count or size in bytes, f sample format (16|24|24_3|32), m = use mmap (0|1)

[GuiPoM]

GuiPoM

27. Juni 2019 at 23:41 #45976

Hello !

I sorry for answering so late, I haven’t been notified for your answer 🙁

Yes, I have seen this wikipage, but I do not manage to make my amp switch to more that 48KHz. Is there any place here on the forum or anywhere else where people share some settings so that I can compare ?

I do not know what to enter. I tried lot of values, from the simple -a 32 to more complex but I can’t make the smsl amp display anything else than „48KHz“ when plugged on windows I can get 96Khz or 192KHz 🙁

I was hoping someone here would have tried max2play with an usb amp but I can’t find any hint.

[GuiPoM]

GuiPoM

27. Juni 2019 at 23:54 #45977

I got something working with :
Soundcard: hw (Direct hardware device without conversion) <here this is my SMSL AD18 but should be the same for other USB DAC or AMP)
Param ALSA: default 80:4::
Command line options: -a 40:4:24_3:1 -b 50000:50000 -p 90 -r 96000 -u hMX

And tada, 96KHz is now displayed. But I do not manage to make to work higher than 24/96, which is already great !