I can get Aplay to play a wav file, but only if I use :

sudo aplay <file>

without sudo, I get :

aplay: main:788: audio open error: Device or resource busy.

Any suggestions on how I get aplay to work without sudo (the wav file is
owned by the pi user).

I'm running Stretch on a Pi 3

Thanks

Adrian
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On 26/12/2021 15:04, Adrian wrote:

I can get Aplay to play a wav file, but only if I use :

sudo aplay <file>

without sudo, I get :

aplay: main:788: audio open error: Device or resource busy.

Any suggestions on how I get aplay to work without sudo (the wav file is owned by the pi user).

Ah. I remember this one. If I remember its a permissions issue on the
audio device. I think you can solve it by making the user and the
devices groups overlap

here is my pi's /etc/group entry....

audio:x:29:me,www-data,pulse,root

I seemed to need all that to get audio to work OK for all the users
needing to invoke it

I'm running Stretch on a Pi 3

Thanks

Adrian

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In message <sqa234$6a5$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

On 26/12/2021 15:04, Adrian wrote:

I can get Aplay to play a wav file, but only if I use :
sudo aplay <file>
without sudo, I get :
aplay: main:788: audio open error: Device or resource busy.
Any suggestions on how I get aplay to work without sudo (the wav
file is owned by the pi user).

Ah. I remember this one. If I remember its a permissions issue on the
audio device. I think you can solve it by making the user and the
devices groups overlap

here is my pi's /etc/group entry....

audio:x:29:me,www-data,pulse,root

I seemed to need all that to get audio to work OK for all the users
needing to invoke it

Thanks, but that doesn't seem to have solved the problem. My pi user
already had the audio group amongst many others.

Adrian
--
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replace "bulleid" with "adrian" - all mail to bulleid is rejected
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On 26/12/2021 16:02, Adrian wrote:

In message <sqa234$6a5$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

On 26/12/2021 15:04, Adrian wrote:

I can get Aplay to play a wav file, but only if I use :
sudo aplay <file>
without sudo, I get :
aplay: main:788: audio open error: Device or resource busy.
Any suggestions on how I get aplay to work without sudo (the wav
file is owned by the pi user).

Ah. I remember this one. If I remember its a permissions issue on the
audio device. I think you can solve it by making the user and the
devices groups overlap

here is my pi's /etc/group entry....

audio:x:29:me,www-data,pulse,root

I seemed to need all that to get audio to work OK for all the users
needing to invoke it

Thanks, but that doesn't seem to have solved the problem. My pi user
already had the audio group amongst many others.

Adrian

What do these say?
aplay -l
amixer contents


--
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England
--- SoupGate-Win32 v1.05
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On 26/12/2021 16:02, Adrian wrote:

In message <sqa234$6a5$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

On 26/12/2021 15:04, Adrian wrote:

I can get Aplay to play a wav file, but only if I use :
sudo aplay <file>
without sudo, I get :
aplay: main:788: audio open error: Device or resource busy.
Any suggestions on how I get aplay to work without sudo (the wav
file is owned by the pi user).

Ah. I remember this one. If I remember its a permissions issue on the
audio device. I think you can solve it by making the user and the
devices groups overlap

here is my pi's /etc/group entry....

audio:x:29:me,www-data,pulse,root

I seemed to need all that to get audio to work OK for all the users
needing to invoke it

Thanks, but that doesn't seem to have solved the problem. My pi user
already had the audio group amongst many others.

Adrian

Also:
ls -l /dev/snd/



--
Chris Elvidge
England
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In message <sqagcb$t4d$2@dont-email.me>, Chris Elvidge
<chris@mshome.net> writes

Also:
ls -l /dev/snd/

**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC
HiFi pcm5102a-hifi-0 []
Subdevices: 0/1
Subdevice #0: subdevice #0

and

numid=1,iface=MIXER,name='PCM'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
: values=255,255
| dBscale-min=-51.00dB,step=0.20dB,mute=0

and

drwxr-xr-x 3 root root 140 Dec 26 14:00 snd

total 0
drwxr-xr-x 2 root root 60 Dec 26 14:00 by-path
crw-rw----+ 1 root audio 116, 0 Dec 26 14:00 controlC0
crw-rw----+ 1 root audio 116, 16 Dec 26 14:00 pcmC0D0p
crw-rw----+ 1 root audio 116, 1 Dec 26 14:00 seq
crw-rw----+ 1 root audio 116, 33 Dec 26 14:00 timer


Thanks

Adrian
--
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On 26/12/2021 20:00, Adrian wrote:

In message <sqagcb$t4d$2@dont-email.me>, Chris Elvidge
<chris@mshome.net> writes

Also:
ls -l /dev/snd/

**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC
HiFi pcm5102a-hifi-0 []
Subdevices: 0/1
Subdevice #0: subdevice #0

and

numid=1,iface=MIXER,name='PCM'
; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
: values=255,255
| dBscale-min=-51.00dB,step=0.20dB,mute=0

and

drwxr-xr-x 3 root root 140 Dec 26 14:00 snd

total 0
drwxr-xr-x 2 root root 60 Dec 26 14:00 by-path
crw-rw----+ 1 root audio 116, 0 Dec 26 14:00 controlC0
crw-rw----+ 1 root audio 116, 16 Dec 26 14:00 pcmC0D0p
crw-rw----+ 1 root audio 116, 1 Dec 26 14:00 seq
crw-rw----+ 1 root audio 116, 33 Dec 26 14:00 timer

Thanks

Adrian

Sorry:
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC
Can't help - no experience with this, only with on-board HDMI/Headphones


--
Chris Elvidge
England
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In message <sqapij$lh2$1@dont-email.me>, Chris Elvidge
<chris@mshome.net> writes

Sorry:
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC >Can't help - no experience with this, only with on-board HDMI/Headphones

Thanks for trying.

Adrian
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On 26/12/2021 22:15, Chris Elvidge wrote:

On 26/12/2021 20:00, Adrian wrote:

In message <sqagcb$t4d$2@dont-email.me>, Chris Elvidge
<chris@mshome.net> writes

Also:
ls -l /dev/snd/

**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry
DAC HiFi pcm5102a-hifi-0 []
   Subdevices: 0/1
   Subdevice #0: subdevice #0

and

numid=1,iface=MIXER,name='PCM'
   ; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
   : values=255,255
   | dBscale-min=-51.00dB,step=0.20dB,mute=0

and

drwxr-xr-x 3 root root 140 Dec 26 14:00 snd

total 0
drwxr-xr-x  2 root root       60 Dec 26 14:00 by-path
crw-rw----+ 1 root audio 116,  0 Dec 26 14:00 controlC0
crw-rw----+ 1 root audio 116, 16 Dec 26 14:00 pcmC0D0p
crw-rw----+ 1 root audio 116,  1 Dec 26 14:00 seq
crw-rw----+ 1 root audio 116, 33 Dec 26 14:00 timer


Thanks

Adrian

Sorry:
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC Can't help - no experience with this, only with on-board HDMI/Headphones

I have this. which driver did you install

--
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– Ludwig von Mises
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On 26/12/2021 20:00, Adrian wrote:

In message <sqagcb$t4d$2@dont-email.me>, Chris Elvidge
<chris@mshome.net> writes

Also:
ls -l /dev/snd/

**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC
HiFi pcm5102a-hifi-0 []
  Subdevices: 0/1
  Subdevice #0: subdevice #0

and

numid=1,iface=MIXER,name='PCM'
  ; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0
  : values=255,255
  | dBscale-min=-51.00dB,step=0.20dB,mute=0

and

drwxr-xr-x 3 root root 140 Dec 26 14:00 snd

total 0
drwxr-xr-x  2 root root       60 Dec 26 14:00 by-path
crw-rw----+ 1 root audio 116,  0 Dec 26 14:00 controlC0
crw-rw----+ 1 root audio 116, 16 Dec 26 14:00 pcmC0D0p
crw-rw----+ 1 root audio 116,  1 Dec 26 14:00 seq
crw-rw----+ 1 root audio 116, 33 Dec 26 14:00 timer

Thanks

Adrian

i get
amixer contents
numid=4,iface=MIXER,name='Master Playback Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=3,iface=MIXER,name='Master Playback Volume'
; type=INTEGER,access=rw------,values=2,min=0,max=65536,step=1
: values=35000,35000
numid=2,iface=MIXER,name='Capture Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=1,iface=MIXER,name='Capture Volume'
; type=INTEGER,access=rw------,values=2,min=0,max=65536,step=1
: values=65536,65536


for what its worth - otherwise the same

--
If I had all the money I've spent on drink...
..I'd spend it on drink.

Sir Henry (at Rawlinson's End)
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On 26/12/2021 22:58, Adrian wrote:

In message <sqapij$lh2$1@dont-email.me>, Chris Elvidge
<chris@mshome.net> writes

Sorry:
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC
Can't help - no experience with this, only with on-board HDMI/Headphones

Thanks for trying.

Adrian

Ok, I think you haven't got the DAC set up right.

you need thi sin /boot/config.txt
<snip loadsa stuff>
# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

dtoverlay=pi3-disable-bt
dtoverlay=hifiberry-dac

So you need to disable onboard and use hifiberry-dac for that card

But I suspect you have done this..or aplay -l wouldnt show the
device....Hmm...

Does the *file* you are trying to play have the right permissions?


--
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to converts. It is deception that uses all the other techniques.
--- SoupGate-Win32 v1.05
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Adrian <bulleid@ku.gro.lioff> wrote:

I'm running Stretch on a Pi 3

This is almost certainly not the cause of your problem but I think you
should bite the bullet anyway and make a new sd card with the latest
RaspiOS Bullseye. Stretch is now 2 versions out of date and the Raspberry
Pi Foundation (or is it the Inc.?) only supports the latest release. So
that should cover you in case anything else pops up.
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In message <sqaucr$ftp$2@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

I have this. which driver did you install

Not sure, but I installed using the instructions here :

<https://learn.adafruit.com/adafruit-speaker-bonnet-for-raspberry-pi/rasp berry-pi-usage>

tinyurl.com/2p8apjvx if the wrapping mangles the URL

Thanks

Adrian
--
To Reply :
replace "bulleid" with "adrian" - all mail to bulleid is rejected
Sorry for the rigmarole, If I want spam, I'll go to the shops
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In message <sqavff$ldq$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

Ok, I think you haven't got the DAC set up right.

you need thi sin /boot/config.txt
<snip loadsa stuff>
# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

Already done

dtoverlay=pi3-disable-bt
dtoverlay=hifiberry-dac

I've added the first, the second was already there.

Having made that change, I've rebooted, and still Device or resource
busy, but works fine if I use sudo.

Does the *file* you are trying to play have the right permissions?

Yes, I'm running as "pi", and the file is owned/group by pi with
rw-r--r--

Thanks

Adrian
--
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replace "bulleid" with "adrian" - all mail to bulleid is rejected
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Adrian <bulleid@ku.gro.lioff> wrote:

In message <sqavff$ldq$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

dtoverlay=pi3-disable-bt

I've added the first, the second was already there.

I think that was just another line from his config file, not relevant to
this issue.
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On 27/12/2021 13:18, Adrian wrote:

In message <sqaucr$ftp$2@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

I have this. which driver did you install

Not sure, but I installed using the instructions here :

<https://learn.adafruit.com/adafruit-speaker-bonnet-for-raspberry-pi/rasp berry-pi-usage>

That does not appear to be for your hardware.

tinyurl.com/2p8apjvx  if the wrapping mangles the URL

Thanks

Adrian

--
"The most difficult subjects can be explained to the most slow witted
man if he has not formed any idea of them already; but the simplest
thing cannot be made clear to the most intelligent man if he is firmly persuaded that he knows already, without a shadow of doubt, what is laid
before him."

- Leo Tolstoy
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On 27/12/2021 13:40, Adrian wrote:

In message <sqavff$ldq$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

Ok, I think you haven't got the DAC set up right.

you need thi sin /boot/config.txt
<snip loadsa stuff>
# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

Already done

dtoverlay=pi3-disable-bt
dtoverlay=hifiberry-dac

I've added the first, the second was already there.

Having made that change, I've rebooted, and still Device or resource
busy, but works fine if I use sudo.

So there is no fundamental issue with missing drivers.

Does  the *file* you are trying to play have the right permissions?

Yes, I'm running as "pi", and the file is owned/group by pi with rw-r--r--

Hmm.

It looks like somehow the /dev/snd perms are wrong, but I am struggling
to see what difference your setup is from mine

I tested it and I can play with myself as the user.

$ ls -l /dev | grep snd
drwxr-xr-x 3 root root 140 Dec 9 13:42 snd

$ ls -l /dev/snd
total 0
drwxr-xr-x 2 root root 60 Dec 9 13:42 by-path
crw-rw---- 1 root audio 116, 0 Dec 9 13:42 controlC0
crw-rw---- 1 root audio 116, 16 Dec 9 13:42 pcmC0D0p
crw-rw---- 1 root audio 116, 1 Dec 9 13:17 seq
crw-rw---- 1 root audio 116, 33 Dec 9 13:42 timer

$ grep audio /etc/group

audio:x:29:me,www-data,pulse,root


that's my setup that works.

I think I had to add myself to get it to work from my user command line,
and www-data to get it to work when invoked by the apache webserver,
which is how I control the sound system...or else write a setuid program...

See if yours differs at all.

Thanks

Adrian

--
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Adolf Hitler
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On 27/12/2021 13:47, A. Dumas wrote:

Adrian <bulleid@ku.gro.lioff> wrote:

In message <sqavff$ldq$1@dont-email.me>, The Natural Philosopher
<tnp@invalid.invalid> writes

dtoverlay=pi3-disable-bt

I've added the first, the second was already there.

I think that was just another line from his config file, not relevant to
this issue.

I think it is...

but can't find out why.. oh it disables bluetooth and is recommended
somewhere for better wifi, which I had issues with.

My bad.

https://www.hifiberry.com/docs/software/configuring-linux-3-18-x/

is I think how I got mine working BUT I am fairly sure I wouldn't have
stuck myself and www-data into the audio group without good reasons. In
short I think I had this problem and that is how I fixed it.

Anyway if I can get Adrian to a working config by duping mine, it's a
result.



--
Of what good are dead warriors? … Warriors are those who desire battle
more than peace. Those who seek battle despite peace. Those who thump
their spears on the ground and talk of honor. Those who leap high the
battle dance and dream of glory … The good of dead warriors, Mother, is
that they are dead.
Sheri S Tepper: The Awakeners.
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In message <sqcgns$740$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

It looks like somehow the /dev/snd perms are wrong, but I am struggling
to see what difference your setup is from mine

I tested it and I can play with myself as the user.

$ ls -l /dev | grep snd
drwxr-xr-x 3 root root 140 Dec 9 13:42 snd

$ ls -l /dev/snd
total 0
drwxr-xr-x 2 root root 60 Dec 9 13:42 by-path
crw-rw---- 1 root audio 116, 0 Dec 9 13:42 controlC0
crw-rw---- 1 root audio 116, 16 Dec 9 13:42 pcmC0D0p
crw-rw---- 1 root audio 116, 1 Dec 9 13:17 seq
crw-rw---- 1 root audio 116, 33 Dec 9 13:42 timer

$ grep audio /etc/group

audio:x:29:me,www-data,pulse,root

that's my setup that works.

I think I had to add myself to get it to work from my user command
line, and www-data to get it to work when invoked by the apache
webserver, which is how I control the sound system...or else write a
setuid program...

See if yours differs at all.

Times and dates aside, my /dev/snd appears to be the same as yours. Oh
hang on, there is a difference. The four entries with permissions
starting "c" all have permissions of crw-rw----+


The audio group is :

audio:x:29:pi

I only need it to work for the pi user, so that should be OK.

Thanks

Adrian
--
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In message <sqcg1t$1pb$2@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

On 27/12/2021 13:18, Adrian wrote:

In message <sqaucr$ftp$2@dont-email.me>, The Natural Philosopher >><tnp@invalid.invalid> writes

I have this. which driver did you install

Not sure, but I installed using the instructions here :

<https://learn.adafruit.com/adafruit-speaker-bonnet-for-raspberry-pi/ra>>sp >> berry-pi-usage>

That does not appear to be for your hardware.

Curious. I got the hardware from PiHut, and that was the site that they
gave for the setup.

Adrian
--
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replace "bulleid" with "adrian" - all mail to bulleid is rejected
Sorry for the rigmarole, If I want spam, I'll go to the shops
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On 27/12/2021 13:57, The Natural Philosopher wrote:

On 27/12/2021 13:40, Adrian wrote:

In message <sqavff$ldq$1@dont-email.me>, The Natural Philosopher
<tnp@invalid.invalid> writes

Ok, I think you haven't got the DAC set up right.

you need thi sin /boot/config.txt
<snip loadsa stuff>
# Additional overlays and parameters are documented
/boot/overlays/README

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

Already done

dtoverlay=pi3-disable-bt
dtoverlay=hifiberry-dac

I've added the first, the second was already there.

Having made that change, I've rebooted, and still Device or resource
busy, but works fine if I use sudo.

So there is no fundamental issue with missing drivers.

Does the *file* you are trying to play have the right permissions?

Yes, I'm running as "pi", and the file is owned/group by pi with
rw-r--r--

Hmm.

It looks like somehow the /dev/snd perms are wrong, but I am struggling
to see what difference your setup is from mine

I tested it and I can play with myself as the user.

"Fnarr, fnarr"

$ ls -l /dev | grep snd
drwxr-xr-x 3 root root 140 Dec 9 13:42 snd

$ ls -l /dev/snd
total 0
drwxr-xr-x 2 root root 60 Dec 9 13:42 by-path
crw-rw---- 1 root audio 116, 0 Dec 9 13:42 controlC0
crw-rw---- 1 root audio 116, 16 Dec 9 13:42 pcmC0D0p
crw-rw---- 1 root audio 116, 1 Dec 9 13:17 seq
crw-rw---- 1 root audio 116, 33 Dec 9 13:42 timer

$ grep audio /etc/group

audio:x:29:me,www-data,pulse,root

that's my setup that works.

I think I had to add myself to get it to work from my user command line,
and www-data to get it to work when invoked by the apache webserver,
which is how I control the sound system...or else write a setuid program...

See if yours differs at all.

Thanks

Adrian

--
Chris Elvidge
England
--- SoupGate-Win32 v1.05
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Adrian <bulleid@ku.gro.lioff> wrote:

In message <sqcg1t$1pb$2@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

That does not appear to be for your hardware.

Curious. I got the hardware from PiHut, and that was the site that they
gave for the setup.

The hifiberry overlay is very general and used for different boards. I
think iqaudio is the only audio board manufacturer with its own, different overlay? That's the one I have, anyway. So it could be that the PiHut was right.
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On 27/12/2021 14:17, Adrian wrote:

In message <sqcgns$740$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

It looks like somehow the /dev/snd perms are wrong, but I am
struggling to see what difference your setup is from mine

I tested it and I can play with myself as the user.

$ ls -l /dev | grep snd
drwxr-xr-x 3 root root         140 Dec  9 13:42 snd

$ ls -l /dev/snd
total 0
drwxr-xr-x 2 root root       60 Dec  9 13:42 by-path
crw-rw---- 1 root audio 116,  0 Dec  9 13:42 controlC0
crw-rw---- 1 root audio 116, 16 Dec  9 13:42 pcmC0D0p
crw-rw---- 1 root audio 116,  1 Dec  9 13:17 seq
crw-rw---- 1 root audio 116, 33 Dec  9 13:42 timer

$ grep audio /etc/group

audio:x:29:me,www-data,pulse,root


that's  my setup that works.

I think I had to add myself to get it to work from my user command
line, and www-data to get it to work when invoked by the apache
webserver, which is how I control the sound system...or else write a
setuid program...

See if yours differs at all.

Times and dates aside, my /dev/snd appears to be the same as yours. Oh
hang on, there is a difference.  The four entries with permissions
starting "c" all have permissions of  crw-rw----+

The audio group is :

audio:x:29:pi

not sure it doesn't need root and pulse.

I only need it to work for the pi user, so that should be OK.

Thanks

Adrian

--
You can get much farther with a kind word and a gun than you can with a
kind word alone.

Al Capone
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On 27/12/2021 14:29, Adrian wrote:

In message <sqcg1t$1pb$2@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

On 27/12/2021 13:18, Adrian wrote:

In message <sqaucr$ftp$2@dont-email.me>, The Natural Philosopher
<tnp@invalid.invalid> writes

I have this. which driver did you install

 Not sure, but I installed using the instructions here :

<https://learn.adafruit.com/adafruit-speaker-bonnet-for-raspberry-pi/ra>>sp >>>
berry-pi-usage>

That does not appear to be for your hardware.

Curious.  I got the hardware from PiHut, and that was the site that they gave for the setup.

Adrian

so did i but i decided that of anyone knew it would be hifiberry!

anyway it all eventually worked



--
You can get much farther with a kind word and a gun than you can with a
kind word alone.

Al Capone
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On 27/12/2021 14:49, A. Dumas wrote:

Adrian <bulleid@ku.gro.lioff> wrote:

In message <sqcg1t$1pb$2@dont-email.me>, The Natural Philosopher
<tnp@invalid.invalid> writes

That does not appear to be for your hardware.

Curious. I got the hardware from PiHut, and that was the site that they
gave for the setup.

The hifiberry overlay is very general and used for different boards.

I had tow hifiberry overlays one of which worked and the other did not



--
“It is hard to imagine a more stupid decision or more dangerous way of
making decisions than by putting those decisions in the hands of people
who pay no price for being wrong.”

Thomas Sowell
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On 27/12/2021 14:46, Chris Elvidge wrote:

On 27/12/2021 13:57, The Natural Philosopher wrote:

I tested it and I can play with myself as the user.

"Fnarr, fnarr"

bugger. missed the comma.

"I tested it and I can play, with myself as the user."


--
“It is hard to imagine a more stupid decision or more dangerous way of
making decisions than by putting those decisions in the hands of people
who pay no price for being wrong.”

Thomas Sowell
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In message <sqck2e$s22$3@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

not sure it doesn't need root and pulse.

I've tried adding root and pulse. Root adds OK, but as I don't have a
user called pulse, I can't add that.

Still get the same error.

Adrian
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On 27/12/2021 15:41, Adrian wrote:

In message <sqck2e$s22$3@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

not sure it doesn't need root and   pulse.

I've tried adding root and pulse.  Root adds OK, but as I don't have a
user called pulse, I can't add that.

Still get the same error.

Adrian

you haven't installed pulseaudio?
check this and lets see what gives

$ aplay -L

null
Discard all samples (playback) or generate zero samples (capture)
default
Playback/recording through the PulseAudio sound server sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample mixing device
dsnoop:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample snooping device
hw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct hardware device without any conversions plughw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Hardware device with all software conversions

You can foirce use of te card with e.g.

aplay -D sysdefault <file>


I think



--
The theory of Communism may be summed up in one sentence: Abolish all
private property.

Karl Marx
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The Natural Philosopher <tnp@invalid.invalid> wrote:

you haven't installed pulseaudio?

He's still on Stretch. I think getting into too much detail is not really useful until he at least upgrades to Buster.
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In message <sqco17$p35$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

you haven't installed pulseaudio?

I have now, and things have changed (see below)

check this and lets see what gives

$ aplay -L

null
Discard all samples (playback) or generate zero samples (capture)
default
Playback/recording through the PulseAudio sound server
sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample mixing device
dsnoop:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample snooping device
hw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct hardware device without any conversions
plughw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Hardware device with all software conversions

null
Discard all samples (playback) or generate zero samples (capture) speakerbonnet
dmixer
softvol
default
Playback/recording through the PulseAudio sound server sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample mixing device
dsnoop:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample snooping device
hw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct hardware device without any conversions plughw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Hardware device with all software conversions

So I get some extra stuff at the top.

Now, when I try aplay, I don't get any errors, but neither do I get any
noise (but I still do with sudo). Progress of sorts I suppose.

You can foirce use of te card with e.g.

aplay -D sysdefault <file>

It doesn't like that, I get :

ALSA lib confmisc.c:767:(parse_card) cannot find card '1'
ALSA lib conf.c:4528:(_snd_config_evaluate) function
snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat
returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM sysdefault
aplay: main:788: audio open error: No such file or directory

Thanks

Adrian
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On 27/12/2021 17:04, Adrian wrote:

In message <sqco17$p35$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

you haven't installed pulseaudio?

I have now, and things have changed (see below)

check this and lets see what gives

$ aplay -L

null
Discard all samples (playback) or generate zero samples (capture)
default
Playback/recording through the PulseAudio sound server
sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample mixing device
dsnoop:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample snooping device
hw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct hardware device without any conversions
plughw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Hardware device with all software conversions

null
Discard all samples (playback) or generate zero samples (capture) speakerbonnet
dmixer
softvol
default
Playback/recording through the PulseAudio sound server sysdefault:CARD=sndrpihifiberry
snd_rpi_hifiberry_dac,
Default Audio Device
dmix:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample mixing device
dsnoop:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct sample snooping device
hw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Direct hardware device without any conversions plughw:CARD=sndrpihifiberry,DEV=0
snd_rpi_hifiberry_dac,
Hardware device with all software conversions

So I get some extra stuff at the top.

Now, when I try aplay, I don't get any errors, but neither do I get any
noise (but I still do with sudo). Progress of sorts I suppose.

Hmm. I would try simply installing pulseaudio and see what happens

Go with the flow, man , we are all slaves to the Poettering.




--
The lifetime of any political organisation is about three years before
its been subverted by the people it tried to warn you about.

Anon.
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In message <sqcsnk$r3u$1@dont-email.me>, The Natural Philosopher <tnp@invalid.invalid> writes

Hmm. I would try simply installing pulseaudio and see what happens

I did before that posting, hence the change in behaviour.

Go with the flow, man , we are all slaves to the Poettering.

B****r, I thought I'd escaped from slavery a while back.

Adrian
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To Reply :
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