!!################################ !!ALSA Information Script v 0.5.1 !!################################ !!Script ran on: Sun Sep 6 18:58:48 UTC 2026 !!Linux Distribution !!------------------ Debian GNU/Linux 12 \n \l PRETTY_NAME="Debian GNU/Linux 12 (bookworm)" NAME="Debian GNU/Linux" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/" !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 6.18.48-v8 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.18.48-v8 Library version: 1.2.8 Utilities version: 1.2.8 !!Loaded ALSA modules !!------------------- snd_soc_rpi_simple_soundcard (card 0) vc4 (card 1) !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- 0 [sndrpigooglevoi]: RPi-simple - snd_rpi_googlevoicehat_soundcar snd_rpi_googlevoicehat_soundcard 1 [vc4hdmi ]: vc4-hdmi - vc4-hdmi vc4-hdmi !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_bcm2835: enable_headphones=0 snd_bcm2835: enable_hdmi=0 !!Loaded sound module options !!--------------------------- !!Module: snd_soc_rpi_simple_soundcard * : !!Module: vc4 fkms_max_refresh_rate : 85 force_hotplug : 0 tv_norm : (null) !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/snd-rpi-simple Tree: !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 4 Sep 6 15:42 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 6 Sep 6 15:42 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 3 Sep 6 15:42 /dev/snd/pcmC0D0c crw-rw---- 1 root audio 116, 2 Sep 6 15:42 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 5 Sep 6 15:42 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Sep 6 15:42 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Sep 6 15:42 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Sep 6 15:42 . drwxr-xr-x 3 root root 200 Sep 6 15:42 .. lrwxrwxrwx 1 root root 12 Sep 6 15:42 platform-3f902000.hdmi -> ../controlC1 lrwxrwxrwx 1 root root 12 Sep 6 15:42 platform-soc:sound -> ../controlC0 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) pcm.raspiaudio{ type softvol slave.pcm "plughw:0" control.name "Master" control.card 0 } pcm.!default { type plug slave.pcm "raspiaudio" } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: sndrpigooglevoi [snd_rpi_googlevoicehat_soundcar], device 0: Google voiceHAT SoundCard HiFi voicehat-hifi-0 [Google voiceHAT SoundCard HiFi voicehat-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: vc4hdmi [vc4-hdmi], device 0: MAI PCM i2s-hifi-0 [MAI PCM i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 0: sndrpigooglevoi [snd_rpi_googlevoicehat_soundcar], device 0: Google voiceHAT SoundCard HiFi voicehat-hifi-0 [Google voiceHAT SoundCard HiFi voicehat-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card sndrpigooglevoi Card sysdefault:0 'sndrpigooglevoi'/'snd_rpi_googlevoicehat_soundcard' Mixer name : '' Components : '' Controls : 1 Simple ctrls : 1 Simple mixer control 'Master',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 255 Front Left: 255 [100%] Front Right: 255 [100%] !!-------Mixer controls for card vc4hdmi Card sysdefault:1 'vc4hdmi'/'vc4-hdmi' Mixer name : '' Components : '' Controls : 5 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- state.sndrpigooglevoi { control.1 { iface MIXER name Master value.0 255 value.1 255 comment { access 'read write user' type INTEGER count 2 range '0 - 255' tlv '0000000100000008ffffec1400000014' dbmin -5100 dbmax 0 dbvalue.0 0 dbvalue.1 0 } } } state.vc4hdmi { control.1 { iface CARD name 'HDMI Jack' value false comment { access read type BOOLEAN count 1 } } control.2 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 value.2 0 value.3 0 value.4 0 value.5 0 value.6 0 value.7 0 comment { access 'read volatile' type INTEGER count 8 range '0 - 36' } } control.3 { iface PCM name 'IEC958 Playback Mask' value ffffffffffffffffffffffffffffffffffffffffffffffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 comment { access read type IEC958 count 1 } } control.4 { iface PCM name 'IEC958 Playback Default' value '0400000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name ELD value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read volatile' type BYTES count 128 } } } --endcollapse-- !!All Loaded Modules !!------------------ backlight bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 binfmt_misc bluetooth brcmfmac brcmfmac_cyw brcmutil btbcm cec cfg80211 dm_mod drm drm_client_lib drm_display_helper drm_dma_helper drm_exec drm_kms_helper drm_panel_orientation_quirks ecc ecdh_generic fuse hci_uart i2c_bcm2835 i2c_dev ipv6 libsha1 mc raspberrypi_gpiomem raspberrypi_hwmon rfkill snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_bcm2835_i2s snd_soc_core snd_soc_googlevoicehat_codec snd_soc_hdmi_codec snd_soc_rpi_simple_soundcard snd_timer v4l2_mem2mem vc4 vc_sm_cma videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev !!ALSA/HDA dmesg !!-------------- [ 0.000000] alternatives: applying boot alternatives [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 cgroup_disable=memory snd_bcm2835.enable_hdmi=0 smsc95xx.macaddr=B8:27:EB:24:C1:18 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000 console=tty1 root=PARTUUID=72ea2dec-02 rootfstype=ext4 fsck.repair=yes rootwait cfg80211.ieee80211_regdom=UY [ 0.000000] cgroup: Disabling memory control group subsystem -- [ 7.375996] mc: Linux media interface: v0.10 [ 7.456102] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 7.478033] videodev: Linux video capture interface: v2.00 -- [ 8.328778] mmc1: Got command interrupt 0x00000001 even though no command operation was in progress. [ 8.333918] input: vc4-hdmi HDMI Jack as /devices/platform/soc/3f902000.hdmi/sound/card1/input1 [ 8.338022] vc4-drm soc:gpu: bound 3f902000.hdmi (ops vc4_hdmi_ops [vc4]) -- [ 10.286463] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled [ 56.586745] voicehat-codec voicehat-codec: Enabling audio amp... [ 61.881209] voicehat-codec voicehat-codec: Disabling audio amp... [ 598.382010] voicehat-codec voicehat-codec: Enabling audio amp... [ 601.303195] voicehat-codec voicehat-codec: Disabling audio amp... [ 610.238668] voicehat-codec voicehat-codec: Enabling audio amp... [ 614.749224] voicehat-codec voicehat-codec: Disabling audio amp... [ 633.101585] voicehat-codec voicehat-codec: Enabling audio amp... [ 640.101121] voicehat-codec voicehat-codec: Disabling audio amp... [ 643.908981] voicehat-codec voicehat-codec: Enabling audio amp... [ 651.658515] voicehat-codec voicehat-codec: Disabling audio amp... [ 670.751191] voicehat-codec voicehat-codec: Enabling audio amp... [ 677.000727] voicehat-codec voicehat-codec: Disabling audio amp... !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files ii alsa-ucm-conf 1.2.8-1 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.8-1 rpt1 arm64 Utilities for configuring and using ALSA