Tx for the suggestions, Man in a van's suggestion worked but was
distorted at higher bit rates.
Then I discovered the Squeezelite Output devices section on the Diags
page with the detailed descriptions of each output and tried the
simplest setting i.e. 'sysdefault:CARD=USB - E-MU 0404 -
Default Audio Device'
Bingo, that worked on all bit rates! :-)
And without having to remove the Justboom DAC HAT.
I think a possible reason why my earlier attempts failed was because I
was using the UI on my phone and copy/pasting in the output entries from
help, (I had no idea they could be selected as there was no mouse
pointer indicating clickable lines and I'd not noticed 'click to use')
so a stray space may have crept in.
It'd be great if the Diag page's descriptive outputs could be worked
into the Squeezelite config page and then made selectable via a radio
button.
Code:
--------------------
Output devices:
null - Discard all samples (playback) or generate
zero samples (capture)
bluealsa - Bluetooth Audio Hub
default
plugequal
equal
hw:CARD=Headphones,DEV=0 - bcm2835 Headphones, bcm2835 Headphones -
Direct hardware device without any conversions
plughw:CARD=Headphones,DEV=0 - bcm2835 Headphones, bcm2835 Headphones -
Hardware device with all software conversions
sysdefault:CARD=Headphones - bcm2835 Headphones, bcm2835 Headphones -
Default Audio Device
dmix:CARD=Headphones,DEV=0 - bcm2835 Headphones, bcm2835 Headphones -
Direct sample mixing device
hw:CARD=USB,DEV=0 - E-MU 0404 - Direct hardware device without
any conversions
hw:CARD=USB,DEV=1 - E-MU 0404 - Direct hardware device without
any conversions
plughw:CARD=USB,DEV=0 - E-MU 0404 - Hardware device with all
software conversions
plughw:CARD=USB,DEV=1 - E-MU 0404 - Hardware device with all
software conversions
sysdefault:CARD=USB - E-MU 0404 - Default Audio Device
front:CARD=USB,DEV=0 - E-MU 0404 - Front output / input
surround21:CARD=USB,DEV=0 - E-MU 0404 - 2.1 Surround output to Front
and Subwoofer speakers
surround40:CARD=USB,DEV=0 - E-MU 0404 - 4.0 Surround output to Front
and Rear speakers
surround41:CARD=USB,DEV=0 - E-MU 0404 - 4.1 Surround output to Front,
Rear and Subwoofer speakers
surround50:CARD=USB,DEV=0 - E-MU 0404 - 5.0 Surround output to Front,
Center and Rear speakers
surround51:CARD=USB,DEV=0 - E-MU 0404 - 5.1 Surround output to Front,
Center, Rear and Subwoofer speakers
surround71:CARD=USB,DEV=0 - E-MU 0404 - 7.1 Surround output to Front,
Center, Side, Rear and Woofer speakers
iec958:CARD=USB,DEV=0 - E-MU 0404 - IEC958 (S/PDIF) Digital Audio
Output
iec958:CARD=USB,DEV=1 - E-MU 0404 - IEC958 (S/PDIF) Digital Audio
Output
dmix:CARD=USB,DEV=0 - E-MU 0404 - Direct sample mixing device
dmix:CARD=USB,DEV=1 - E-MU 0404 - Direct sample mixing device
dsnoop:CARD=USB,DEV=0 - E-MU 0404 - Direct sample snooping device
hw:CARD=sndrpijustboomd,DEV=0 - snd_rpi_justboom_digi, JustBoom Digi HiFi
wm8804-spdif-0 - Direct hardware device without any conversions
plughw:CARD=sndrpijustboomd,DEV=0 - snd_rpi_justboom_digi, JustBoom Digi HiFi
wm8804-spdif-0 - Hardware device with all software conversions
sysdefault:CARD=sndrpijustboomd - snd_rpi_justboom_digi, JustBoom Digi HiFi
wm8804-spdif-0 - Default Audio Device
dmix:CARD=sndrpijustboomd,DEV=0 - snd_rpi_justboom_digi, JustBoom Digi HiFi
wm8804-spdif-0 - Direct sample mixing device
dsnoop:CARD=sndrpijustboomd,DEV=0 - snd_rpi_justboom_digi, JustBoom Digi HiFi
wm8804-spdif-0 - Direct sample snooping device
--------------------
------------------------------------------------------------------------
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