Digital Room Correction with the HiFiBerry DSP card

[adamdea]

Well I had a go last night: volumio does control the shd vc with its vc.
Otherwise I drew a complete blank. I tried changing the output device from the drop down and simply inserting -V digital, none of the permutations worked.
I tried SSH ing and running squeezelite -l but all I got was command not recognised.

I can’t work out the name for the mixer device. If volumio can control thr dac vc then surely squeezelite should be able to, but I can’t seem to get anywhere

[ralphy]

You can list the mixers available for a device with squeezelite.
You must specify the -o option with your card, before the -L on the command line, otherwise squeezelite listed the mixer device(s) for the default device.

$ squeezelite -o hw:CARD=sndrpihifiberry -L
Volume controls for hw:CARD=sndrpihifiberry
Analogue
Analogue Playback Boost
Digital
Max Overclock DAC
Max Overclock DSP
Max Overclock PLL

$ squeezelite -L
Volume controls for default
Headphone

[adamdea]

You can list the mixers available for a device with squeezelite.
You must specify the -o option with your card, before the -L on the command line, otherwise squeezelite listed the mixer device(s) for the default device.

$ squeezelite -o hw:CARD=sndrpihifiberry -L
Volume controls for hw:CARD=sndrpihifiberry
Analogue
Analogue Playback Boost
Digital
Max Overclock DAC
Max Overclock DSP
Max Overclock PLL

$ squeezelite -L
Volume controls for default
Headphone

Thanks -I will have another go, but last night I just got something along the lines of "BASH squeezelite command not recognised" even though squeezelite seemed to run fine. Do I need to be in a particular place in the directory structure for this to work?

[adamdea]

This does not seem normal to me:

x@minidsp-shd:/$ squeezelite -L
-bash: squeezelite: command not found
x@minidsp-shd:/$

[username deleted as minidsp made me swear to secrecy].

[adamdea]

@schoeppi @tw99 do you have any idea why I can't use the squeezelite command, or otherise how to set up squeezelite under minidspshd to control hardware vc

[ralphy]

It appears the squeezelite is not in your PATH and that's why the command fails.

You can try running this command to try and locate it.

find / -name squeezelite

Mine returns

/usr/local/bin/squeezelite

[schoeppi]

Am 04.08.2021 um 14:13 schrieb ralphy:

It appears the squeezelite is not in your PATH and that's why the
command fails.

You can try running this command to try and locate it.

find / -name squeezelite

On my MiniDSP squeezelite is located in /opt. /opt isn't in the path, so
maybe thats the reason why squezzelite can not be found on your system.

Cheers,

 Schoepp

[adamdea]

Thanks both i will have a go at adding /opt or wherever squeezelite is to the path

[adamdea]

volumiooem@minidsp-shd:/opt$ squeezelite -L
Volume controls for default

volumiooem@minidsp-shd:/opt$ squeezelite -l
Output devices:
  null                           - Discard all samples (playback) or generate zero samples (ca                                            pture)
  default:CARD=Out               - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Defau                                            lt Audio Device
  sysdefault:CARD=Out            - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Defau                                            lt Audio Device
  dmix:CARD=Out,DEV=0            - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Direc                                            t sample mixing device
  dsnoop:CARD=Out,DEV=0          - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Direc                                            t sample snooping device
  hw:CARD=Out,DEV=0              - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Direc                                            t hardware device without any conversions
  plughw:CARD=Out,DEV=0          - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Hardw                                            are device with all software conversions
  default:CARD=SPDIF             - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Default Audio D                                            evice
  sysdefault:CARD=SPDIF          - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Default Audio D                                            evice
  dmix:CARD=SPDIF,DEV=0          - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Direct sample m                                            ixing device
  dsnoop:CARD=SPDIF,DEV=0        - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Direct sample s                                            nooping device
  hw:CARD=SPDIF,DEV=0            - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Direct hardware                                             device without any conversions
  plughw:CARD=SPDIF,DEV=0        - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Hardware device                                             with all software conversions


^Cvolumiooem@minidsp-shd:/opt$ squeezelite -o plughw:CARD=Out -L
Volume controls for plughw:CARD=Out

Am I right in thinking this means there is no volume control ascoiuated with the I2S out?
If so how does volumio (non squeezelite) control the vc?

[ralphy]

volumiooem@minidsp-shd:/opt$ squeezelite -L
Volume controls for default

volumiooem@minidsp-shd:/opt$ squeezelite -l
Output devices:
  null                           - Discard all samples (playback) or generate zero samples (ca                                            pture)
  default:CARD=Out               - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Defau                                            lt Audio Device
  sysdefault:CARD=Out            - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Defau                                            lt Audio Device
  dmix:CARD=Out,DEV=0            - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Direc                                            t sample mixing device
  dsnoop:CARD=Out,DEV=0          - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Direc                                            t sample snooping device
  hw:CARD=Out,DEV=0              - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Direc                                            t hardware device without any conversions
  plughw:CARD=Out,DEV=0          - I2S Out, ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 - Hardw                                            are device with all software conversions
  default:CARD=SPDIF             - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Default Audio D                                            evice
  sysdefault:CARD=SPDIF          - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Default Audio D                                            evice
  dmix:CARD=SPDIF,DEV=0          - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Direct sample m                                            ixing device
  dsnoop:CARD=SPDIF,DEV=0        - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Direct sample s                                            nooping device
  hw:CARD=SPDIF,DEV=0            - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Direct hardware                                             device without any conversions
  plughw:CARD=SPDIF,DEV=0        - SPDIF, ff030000.spdif-dit-hifi dit-hifi-0 - Hardware device                                             with all software conversions


^Cvolumiooem@minidsp-shd:/opt$ squeezelite -o plughw:CARD=Out -L
Volume controls for plughw:CARD=Out

Am I right in thinking this means there is no volume control ascoiuated with the I2S out?
If so how does volumio (non squeezelite) control the vc?

A hardware mixer might be obsured using plughw:

I never use it as it "hides" the actual audio formats supported by the dac, which cripples many of the features that are built into squeezelite, like the resampler.

Try

squeezelite -o hw:CARD=Out -L