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I want to be able to set my audio driver bit depth to 24 bits.
As i understand my audio hardware supports 16 20 24 32 bits. When i monitor with pw-top command always report:
S32LE 2 44100 alsa_output.pci-0000_00_1b.0.analog-stereo and cat /proc/asound/card1/pcm0p/sub0/hw_params S32_LE too.
What is the correct way to set it up for S24_LE audio format?
I share the required information below:
My main configuration is monitor.alsa.rules and expecting respect what i change in it and see cat /proc/asound/card1/pcm0p/sub0/hw_params S24_LE as a output.
Solution:
I solved the issue after some research. My config was right but my hardware especially with alsa only supports two audio formats. Pipewire does not give me error about audio format either its supported or not. What i did is to play sound with aplay (alsa-utils) with the alsa path of my audio hardware. The output says my hardware actually support two audio format i confirm S16_LE and S32_LE work with monitor.alsa.rules in wireplumber configuration.
$ aplay -D hw:1 --dump-hw-params ~/Music/audiofilename.flac
HW Params of device "hw:1":
--------------------
ACCESS: MMAP_INTERLEAVED RW_INTERLEAVED
FORMAT: S16_LE S32_LE
SUBFORMAT: STD MSBITS_MAX
SAMPLE_BITS: [16 32]
FRAME_BITS: [32 128]
CHANNELS: [2 4]
RATE: [32000 192000]
PERIOD_TIME: (41 16384000]
PERIOD_SIZE: [8 524288]
PERIOD_BYTES: [128 2097152]
PERIODS: [2 32]
BUFFER_TIME: (83 32768000]
BUFFER_SIZE: [16 1048576]
BUFFER_BYTES: [128 4194304]
TICK_TIME: ALL
--------------------
aplay: set_params:1387: Sample format non available
Available formats:
- S16_LE
- S32_LE
$ uname -r
6.13.7-arch1-1$ pacman -Qe
alsa-utils 1.2.13-2
base 3-2
brightnessctl 0.5.1-3
btrfs-progs 6.13-1
efibootmgr 18-3
flatpak 1:1.16.0-1
foot 1.20.2-1
gnu-free-fonts 20120503-8
grub 2:2.12.r226.g56ccc5ed-1
htop 3.4.0-1
intel-media-driver 25.1.3-1
intel-ucode 20250211-1
iwd 3.4-1
linux 6.13.7.arch1-1
linux-firmware 20250311.b69d4b74-2
man-db 2.13.0-1
mesa 1:25.0.1-2
nano 8.3-1
pipewire 1:1.4.1-1
pipewire-alsa 1:1.4.1-1
pipewire-audio 1:1.4.1-1
pipewire-docs 1:1.4.1-1
pipewire-pulse 1:1.4.1-1
polkit 126-2
polkit-gnome 0.105-11
sof-firmware 2025.01-1
sudo 1.9.16.p2-2
sway 1:1.10.1-2
swaybg 1.2.1-1
swayidle 1.8.0-2
swaylock 1.8.0-1
tuned 2.25.1-1
tuned-ppd 2.25.1-1
unzip 6.0-22
vulkan-intel 1:25.0.1-2
wireplumber 0.5.8-1
wmenu 0.1.9-1
xdg-desktop-portal-gtk 1.15.2-1
xdg-desktop-portal-wlr 0.7.1-1
xdg-user-dirs 0.18-2
zram-generator 1.2.1-1$ wpctl status
PipeWire 'pipewire-0' [1.4.1, fywrite@archlinux, cookie:3644433263]
└─ Clients:
34. WirePlumber [1.4.1, fywrite@archlinux, pid:617]
35. pipewire [1.4.1, fywrite@archlinux, pid:616]
36. pipewire [1.4.1, fywrite@archlinux, pid:618]
37. pipewire [1.4.1, fywrite@archlinux, pid:616]
47. WirePlumber [export] [1.4.1, fywrite@archlinux, pid:617]
72. xdg-desktop-portal [1.4.1, fywrite@archlinux, pid:1308]
73. xdg-desktop-portal-wlr [1.4.1, fywrite@archlinux, pid:1322]
74. LibreWolf [1.4.1, fywrite@archlinux, pid:2]
80. wpctl [1.4.1, fywrite@archlinux, pid:5932]
Audio
├─ Devices:
│ 52. Built-in Audio [alsa]
│ 53. Built-in Audio [alsa]
│
├─ Sinks:
│ * 60. Built-in Audio Analog Stereo [vol: 0.31]
│
├─ Sources:
│ * 61. Built-in Audio Analog Stereo [vol: 1.00]
│
├─ Filters:
│ - filter-chain-616-30
│ 38. Parametric EQ input [Audio/Sink]
│ 39. Parametric EQ output [Stream/Output/Audio]
│
└─ Streams:
75. LibreWolf
78. output_FR > CS4208 Analog:playback_FR [active]
79. output_FL > CS4208 Analog:playback_FL [active]
Video
├─ Devices:
│
├─ Sinks:
│
├─ Sources:
│
├─ Filters:
│
└─ Streams:
Settings
└─ Default Configured Devices:
0. Audio/Sink alsa_output.pci-0000_00_1b.0.analog-stereo$ wpctl inspect 60
id 60, type PipeWire:Interface:Node
alsa.card = "1"
alsa.card_name = "HDA Intel PCH"
alsa.class = "generic"
alsa.components = "HDA:10134208,106b7b00,00100300"
alsa.device = "0"
alsa.driver_name = "snd_hda_intel"
alsa.id = "CS4208 Analog"
alsa.long_card_name = "HDA Intel PCH at 0xc1814000 irq 77"
alsa.mixer_name = "Cirrus Logic CS4208"
alsa.name = "CS4208 Analog"
alsa.resolution_bits = "24"
alsa.subclass = "generic-mix"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.sync.id = "00000000:00000000:00000000:00000000"
api.alsa.card.longname = "HDA Intel PCH at 0xc1814000 irq 77"
api.alsa.card.name = "HDA Intel PCH"
api.alsa.path = "front:1"
api.alsa.pcm.card = "1"
api.alsa.pcm.stream = "playback"
audio.channels = "2"
audio.format = "S24_LE"
audio.position = "FL,FR"
card.profile.device = "4"
* client.id = "47"
clock.quantum-limit = "8192"
device.api = "alsa"
device.class = "sound"
device.icon-name = "audio-card-analog"
* device.id = "53"
device.profile.description = "Analog Stereo"
device.profile.name = "analog-stereo"
device.routes = "2"
* factory.id = "19"
factory.name = "api.alsa.pcm.sink"
library.name = "audioconvert/libspa-audioconvert"
* media.class = "Audio/Sink"
* node.description = "Built-in Audio Analog Stereo"
node.driver = "true"
node.loop.name = "data-loop.0"
* node.name = "alsa_output.pci-0000_00_1b.0.analog-stereo"
* node.nick = "CS4208 Analog"
node.pause-on-idle = "false"
* object.path = "alsa:acp:PCH:4:playback"
* object.serial = "60"
port.group = "playback"
* priority.driver = "1009"
* priority.session = "1009"$ cat .config/wireplumber/wireplumber.conf.d/90-alsa.conf
monitor.alsa.rules = [
{
matches = [
{
node.name = "alsa_output.pci-0000_00_1b.0.analog-stereo"
}
]
actions = {
update-props = {
alsa.resolution_bits = "24"
audio.format = "S24_LE"
}
}
}
]$ cat .config/pipewire/pipewire.conf.d/90-sample-rates.conf
context.properties = {
default.clock.rate = 48000
default.clock.allowed-rates = [ 32000 44100 48000 88200 96000 176400 192000 ]
}$ systemctl --user status pipewire.service
● pipewire.service - PipeWire Multimedia Service
Loaded: loaded (/usr/lib/systemd/user/pipewire.service; enabled; preset: enabled)
Active: active (running) since Mon 2025-03-17 17:05:51 +03; 17s ago
Invocation: 4a328c20f0f5492b8900d7ba71683549
TriggeredBy: ● pipewire.socket
Main PID: 612 (pipewire)
Tasks: 3 (limit: 8930)
Memory: 16.6M (peak: 16.8M)
CPU: 58ms
CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/pipewire.service
└─612 /usr/bin/pipewire
Mar 17 17:05:51 archlinux systemd[601]: Started PipeWire Multimedia Service.
[fywrite@archlinux ~]$ systemctl --user status pipewire-pulse.service
● pipewire-pulse.service - PipeWire PulseAudio
Loaded: loaded (/usr/lib/systemd/user/pipewire-pulse.service; enabled; preset: enabled)
Active: active (running) since Mon 2025-03-17 17:05:51 +03; 29s ago
Invocation: 2f5e3235a5cc477c9fe58ee67de5e53d
TriggeredBy: ● pipewire-pulse.socket
Main PID: 614 (pipewire-pulse)
Tasks: 3 (limit: 8930)
Memory: 2.1M (peak: 2.5M)
CPU: 30ms
CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/pipewire-pulse.service
└─614 /usr/bin/pipewire-pulse
Mar 17 17:05:51 archlinux systemd[601]: Started PipeWire PulseAudio.
[fywrite@archlinux ~]$ systemctl --user status pipewire-pulse.socket
● pipewire-pulse.socket - PipeWire PulseAudio
Loaded: loaded (/usr/lib/systemd/user/pipewire-pulse.socket; enabled; preset: enabled)
Active: active (running) since Mon 2025-03-17 17:05:51 +03; 33s ago
Invocation: 772ede6f299a49058d8a57dfe5a879dd
Triggers: ● pipewire-pulse.service
Listen: /run/user/1000/pulse/native (Stream)
CGroup: /user.slice/user-1000.slice/user@1000.service/app.slice/pipewire-pulse.socket
Mar 17 17:05:51 archlinux systemd[601]: Listening on PipeWire PulseAudio.
[fywrite@archlinux ~]$ systemctl --user status wireplumber.service
● wireplumber.service - Multimedia Service Session Manager
Loaded: loaded (/usr/lib/systemd/user/wireplumber.service; enabled; preset: enabled)
Active: active (running) since Mon 2025-03-17 17:05:51 +03; 51s ago
Invocation: 62a0d62d773449a1a1956ec5ead4532b
Main PID: 613 (wireplumber)
Tasks: 6 (limit: 8930)
Memory: 12.7M (peak: 14.7M)
CPU: 231ms
CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/wireplumber.service
└─613 /usr/bin/wireplumber
Mar 17 17:05:51 archlinux systemd[601]: Started Multimedia Service Session Manager.
Mar 17 17:05:51 archlinux wireplumber[613]: wp-internal-comp-loader: Loading profile 'main'
Mar 17 17:05:52 archlinux wireplumber[613]: default: Failed to get percentage from UPower: org.freedesktop.DBus.Error.NameHasNoOwner
Mar 17 17:05:52 archlinux wireplumber[613]: spa.bluez5: BlueZ system service is not available
Mar 17 17:05:52 archlinux wireplumber[613]: wp-device: SPA handle 'api.libcamera.enum.manager' could not be loaded; is it installed?
Mar 17 17:05:52 archlinux wireplumber[613]: s-monitors-libcamera: PipeWire's libcamera SPA plugin is missing or broken. Some camera types may not be supported.$ systemctl --user --type=service --state=running
UNIT LOAD ACTIVE SUB DESCRIPTION
at-spi-dbus-bus.service loaded active running Accessibility services bus
dbus-:1.14-org.a11y.atspi.Registry@0.service loaded active running dbus-:1.14-org.a11y.atspi.Registry@0.service
dbus-broker.service loaded active running D-Bus User Message Bus
flatpak-session-helper.service loaded active running flatpak session helper
pipewire-pulse.service loaded active running PipeWire PulseAudio
pipewire.service loaded active running PipeWire Multimedia Service
wireplumber.service loaded active running Multimedia Service Session Manager
xdg-desktop-portal-gtk.service loaded active running Portal service (GTK/GNOME implementation)
xdg-desktop-portal-wlr.service loaded active running Portal service (wlroots implementation)
xdg-desktop-portal.service loaded active running Portal service
xdg-document-portal.service loaded active running flatpak document portal service
xdg-permission-store.service loaded active running sandboxed app permission store
Legend: LOAD → Reflects whether the unit definition was properly loaded.
ACTIVE → The high-level unit activation state, i.e. generalization of SUB.
SUB → The low-level unit activation state, values depend on unit type.
12 loaded units listed.$ systemctl --type=service --state=running
UNIT LOAD ACTIVE SUB DESCRIPTION
dbus-broker.service loaded active running D-Bus System Message Bus
getty@tty1.service loaded active running Getty on tty1
iwd.service loaded active running Wireless service
polkit.service loaded active running Authorization Manager
rtkit-daemon.service loaded active running RealtimeKit Scheduling Policy Service
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running User Login Management
systemd-resolved.service loaded active running Network Name Resolution
systemd-udevd.service loaded active running Rule-based Manager for Device Events and Files
systemd-userdbd.service loaded active running User Database Manager
tuned-ppd.service loaded active running PPD-to-TuneD API Translation Daemon
tuned.service loaded active running Dynamic System Tuning Daemon
user@1000.service loaded active running User Manager for UID 1000
Legend: LOAD → Reflects whether the unit definition was properly loaded.
ACTIVE → The high-level unit activation state, i.e. generalization of SUB.
SUB → The low-level unit activation state, values depend on unit type.
13 loaded units listed.$ cat /proc/asound/card1/codec#0
Node 0x02 [Audio Output] wcaps 0xd043d: Stereo Amp-Out Stripe
Control: name="Headphone Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Amp-Out caps: ofs=0x7f, nsteps=0x7f, stepsize=0x01, mute=1
Amp-Out vals: [0x00 0x00]
Converter: stream=5, channel=0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0x1e]: 16 20 24 32
formats [0x3]: PCM FLOAT
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Delay: 13 samples
Node 0x03 [Audio Output] wcaps 0xd043d: Stereo Amp-Out Stripe
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Control: name="Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Device: name="CS4208 Analog", type="Audio", device=0
Amp-Out caps: ofs=0x7f, nsteps=0x7f, stepsize=0x01, mute=1
Amp-Out vals: [0x43 0x43]
Converter: stream=5, channel=0
PCM:
rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
bits [0x1e]: 16 20 24 32
formats [0x3]: PCM FLOAT
Power states: D0 D3 EPSS
Power: setting=D0, actual=D0
Delay: 13 samples$ grep -E 'Codec|Audio Output|rates' /proc/asound/card*/codec#*
/proc/asound/card0/codec#0:Codec: Intel Broadwell HDMI
/proc/asound/card0/codec#0: rates [0x0]:
/proc/asound/card0/codec#0:Node 0x02 [Audio Output] wcaps 0x6611: 8-Channels Digital
/proc/asound/card0/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card0/codec#0:Node 0x03 [Audio Output] wcaps 0x6611: 8-Channels Digital
/proc/asound/card0/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card0/codec#0:Node 0x04 [Audio Output] wcaps 0x6611: 8-Channels Digital
/proc/asound/card0/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card1/codec#0:Codec: Cirrus Logic CS4208
/proc/asound/card1/codec#0: rates [0x0]:
/proc/asound/card1/codec#0:Node 0x02 [Audio Output] wcaps 0xd043d: Stereo Amp-Out Stripe
/proc/asound/card1/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card1/codec#0:Node 0x03 [Audio Output] wcaps 0xd043d: Stereo Amp-Out Stripe
/proc/asound/card1/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card1/codec#0:Node 0x04 [Audio Output] wcaps 0xd043d: Stereo Amp-Out Stripe
/proc/asound/card1/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card1/codec#0:Node 0x05 [Audio Output] wcaps 0xd043d: Stereo Amp-Out Stripe
/proc/asound/card1/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card1/codec#0: rates [0x1f5]: 8000 16000 32000 44100 48000 88200 96000
/proc/asound/card1/codec#0: rates [0x1f5]: 8000 16000 32000 44100 48000 88200 96000
/proc/asound/card1/codec#0: rates [0x1f5]: 8000 16000 32000 44100 48000 88200 96000
/proc/asound/card1/codec#0: rates [0x1f5]: 8000 16000 32000 44100 48000 88200 96000
/proc/asound/card1/codec#0:Node 0x0a [Audio Output] wcaps 0x46631: 8-Channels Digital Stripe
/proc/asound/card1/codec#0: rates [0x60]: 44100 48000
/proc/asound/card1/codec#0:Node 0x0b [Audio Output] wcaps 0x46631: 8-Channels Digital Stripe
/proc/asound/card1/codec#0: rates [0x60]: 44100 48000
/proc/asound/card1/codec#0: rates [0x60]: 44100 48000
/proc/asound/card1/codec#0: rates [0x60]: 44100 48000
/proc/asound/card1/codec#0:Node 0x0e [Audio Output] wcaps 0x40631: Stereo Digital Stripe
/proc/asound/card1/codec#0: rates [0x7f0]: 32000 44100 48000 88200 96000 176400 192000
/proc/asound/card1/codec#0: rates [0x5f0]: 32000 44100 48000 88200 96000 192000$ cat /proc/asound/card1/pcm0p/sub0/hw_params
access: MMAP_INTERLEAVED
format: S32_LE
subformat: STD
channels: 2
rate: 44100 (44100/1)
period_size: 1024
buffer_size: 32768Last edited by fywrite (2025-03-18 20:54:00)
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