!!################################ !!ALSA Information Script v 0.5.3 !!################################ !!Script ran on: Sat Nov 23 17:07:14 UTC 2024 !!Linux Distribution !!------------------ Ubuntu 24.04.1 LTS \n \l DISTRIB_ID=Ubuntu DISTRIB_DESCRIPTION="Ubuntu 24.04.1 LTS" PRETTY_NAME="Ubuntu 24.04.1 LTS" NAME="Ubuntu" ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=noble LOGO=ubuntu-logo !!DMI Information !!--------------- Manufacturer: Apple Inc. Product Name: MacBookPro14,2 Product Version: 1.0 Firmware Version: 529.140.2.0.0 System SKU: Board Vendor: Apple Inc. Board Name: Mac-CAD6701F7CEA0921 !!ACPI Device Status Information !!--------------- /sys/bus/acpi/devices/ACPI0001:00/status 15 /sys/bus/acpi/devices/APP0001:00/status 11 /sys/bus/acpi/devices/APP0002:00/status 11 /sys/bus/acpi/devices/APP000D:00/status 15 /sys/bus/acpi/devices/APPLE-UART-ALS:00/status 15 /sys/bus/acpi/devices/APPLE-UART-SSDC:00/status 15 /sys/bus/acpi/devices/BCM2E7C:00/status 15 /sys/bus/acpi/devices/PNP0C0E:00/status 11 /sys/bus/acpi/devices/PNP0C0F:00/status 11 /sys/bus/acpi/devices/PNP0C0F:01/status 11 /sys/bus/acpi/devices/PNP0C0F:02/status 11 /sys/bus/acpi/devices/PNP0C0F:03/status 11 /sys/bus/acpi/devices/PNP0C0F:04/status 11 /sys/bus/acpi/devices/PNP0C0F:05/status 11 /sys/bus/acpi/devices/PNP0C0F:06/status 11 /sys/bus/acpi/devices/PNP0C0F:07/status 11 /sys/bus/acpi/devices/device:10/status 15 /sys/bus/acpi/devices/device:11/status 15 /sys/bus/acpi/devices/device:13/status 15 /sys/bus/acpi/devices/device:15/status 15 /sys/bus/acpi/devices/device:16/status 15 /sys/bus/acpi/devices/device:17/status 15 /sys/bus/acpi/devices/device:19/status 15 /sys/bus/acpi/devices/device:1a/status 15 /sys/bus/acpi/devices/device:1b/status 15 /sys/bus/acpi/devices/device:1c/status 15 /sys/bus/acpi/devices/device:1d/status 15 /sys/bus/acpi/devices/device:1e/status 15 /sys/bus/acpi/devices/device:1f/status 15 /sys/bus/acpi/devices/device:20/status 15 /sys/bus/acpi/devices/device:21/status 15 /sys/bus/acpi/devices/device:23/status 15 /sys/bus/acpi/devices/device:24/status 15 /sys/bus/acpi/devices/device:25/status 15 /sys/bus/acpi/devices/device:26/status 15 /sys/bus/acpi/devices/device:27/status 15 /sys/bus/acpi/devices/device:28/status 15 /sys/bus/acpi/devices/device:29/status 15 /sys/bus/acpi/devices/device:2a/status 15 /sys/bus/acpi/devices/device:2b/status 15 /sys/bus/acpi/devices/device:2c/status 15 /sys/bus/acpi/devices/device:2d/status 15 /sys/bus/acpi/devices/device:32/status 15 /sys/bus/acpi/devices/device:34/status 15 /sys/bus/acpi/devices/device:35/status 15 /sys/bus/acpi/devices/device:36/status 15 /sys/bus/acpi/devices/device:38/status 15 /sys/bus/acpi/devices/device:39/status 15 /sys/bus/acpi/devices/device:3a/status 15 /sys/bus/acpi/devices/device:3b/status 15 /sys/bus/acpi/devices/device:3c/status 15 /sys/bus/acpi/devices/device:3d/status 15 /sys/bus/acpi/devices/device:3e/status 15 /sys/bus/acpi/devices/device:3f/status 15 /sys/bus/acpi/devices/device:40/status 15 /sys/bus/acpi/devices/device:42/status 15 /sys/bus/acpi/devices/device:43/status 15 /sys/bus/acpi/devices/device:44/status 15 /sys/bus/acpi/devices/device:45/status 15 /sys/bus/acpi/devices/device:46/status 15 /sys/bus/acpi/devices/device:47/status 15 /sys/bus/acpi/devices/device:48/status 15 /sys/bus/acpi/devices/device:49/status 15 /sys/bus/acpi/devices/device:4a/status 15 /sys/bus/acpi/devices/device:4b/status 15 /sys/bus/acpi/devices/device:4d/status 15 /sys/bus/acpi/devices/device:4e/status 15 /sys/bus/acpi/devices/device:50/status 15 /sys/bus/acpi/devices/device:52/status 15 /sys/bus/acpi/devices/device:53/status 15 /sys/bus/acpi/devices/device:54/status 15 /sys/bus/acpi/devices/device:56/status 15 /sys/bus/acpi/devices/device:57/status 15 /sys/bus/acpi/devices/device:58/status 15 /sys/bus/acpi/devices/device:59/status 15 /sys/bus/acpi/devices/device:5a/status 15 /sys/bus/acpi/devices/device:5b/status 15 /sys/bus/acpi/devices/device:5c/status 15 /sys/bus/acpi/devices/device:5d/status 15 /sys/bus/acpi/devices/device:5e/status 15 /sys/bus/acpi/devices/device:60/status 15 /sys/bus/acpi/devices/device:61/status 15 /sys/bus/acpi/devices/device:62/status 15 /sys/bus/acpi/devices/device:63/status 15 /sys/bus/acpi/devices/device:64/status 15 /sys/bus/acpi/devices/device:65/status 15 /sys/bus/acpi/devices/device:66/status 15 /sys/bus/acpi/devices/device:67/status 15 /sys/bus/acpi/devices/device:68/status 15 /sys/bus/acpi/devices/device:69/status 15 /sys/bus/acpi/devices/device:6a/status 15 /sys/bus/acpi/devices/device:6f/status 15 /sys/bus/acpi/devices/device:71/status 15 /sys/bus/acpi/devices/device:72/status 15 /sys/bus/acpi/devices/device:73/status 15 /sys/bus/acpi/devices/device:75/status 15 /sys/bus/acpi/devices/device:76/status 15 /sys/bus/acpi/devices/device:77/status 15 /sys/bus/acpi/devices/device:78/status 15 /sys/bus/acpi/devices/device:79/status 15 /sys/bus/acpi/devices/device:7a/status 15 /sys/bus/acpi/devices/device:7b/status 15 /sys/bus/acpi/devices/device:7c/status 15 /sys/bus/acpi/devices/device:7d/status 15 /sys/bus/acpi/devices/device:7f/status 15 /sys/bus/acpi/devices/device:80/status 15 /sys/bus/acpi/devices/device:81/status 15 /sys/bus/acpi/devices/device:82/status 15 /sys/bus/acpi/devices/device:83/status 15 /sys/bus/acpi/devices/device:84/status 15 /sys/bus/acpi/devices/device:85/status 15 /sys/bus/acpi/devices/device:86/status 15 /sys/bus/acpi/devices/device:87/status 15 /sys/bus/acpi/devices/device:88/status 15 /sys/bus/acpi/devices/device:89/status 15 /sys/bus/acpi/devices/device:8a/status 15 /sys/bus/acpi/devices/device:8f/status 15 /sys/bus/acpi/devices/device:90/status 15 /sys/bus/acpi/devices/device:91/status 15 /sys/bus/acpi/devices/device:92/status 15 !!ACPI SoundWire Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: #49-Ubuntu SMP PREEMPT_DYNAMIC Mon Nov 4 02:06:24 UTC 2024 Operating System: GNU/Linux Architecture: x86_64 Processor: x86_64 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k6.8.0-49-generic Library version: Utilities version: 1.2.9 !!Loaded ALSA modules !!------------------- snd_hda_intel (card 0) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0x82620000 irq 90 !!PCI Soundcards installed in the system !!-------------------------------------- 00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21) Subsystem: Intel Corporation Sunrise Point-LP HD Audio [8086:7270] !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_usb_audio: index=-2 snd_usb_caiaq: index=-2 snd_usb_ua101: index=-2 snd_usb_us122l: index=-2 snd_usb_usx2y: index=-2 snd_cmipci: mpu_port=0x330 fm_port=0x388 snd_pcsp: index=-2 snd_usb_audio: index=-2 snd_hda_intel: model=generic snd_hda_intel: dmic_detect=0 !!Loaded sound module options !!--------------------------- !!Module: snd_hda_intel align_buffer_size : -1 bdl_pos_adj : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 beep_mode : N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N,N ctl_dev_id : N dmic_detect : N enable : Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y,Y enable_msi : -1 id : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) index : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 jackpoll_ms : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 model : generic,(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) patch : (null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null),(null) pm_blacklist : Y position_fix : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 power_save : 1 power_save_controller : Y probe_mask : -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 probe_only : 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 single_cmd : -1 snoop : -1 !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/pci/drivers/snd_hda_intel Tree: !!HDA-Intel Codec information !!--------------------------- --startcollapse-- Codec: Cirrus Logic Generic Address: 0 AFG Function Id: 0x1 (unsol 1) Vendor Id: 0x10138409 Subsystem Id: 0x106b3600 Revision Id: 0x100100 No Modem Function Group found Default PCM: N/A Default Amp-In caps: N/A Default Amp-Out caps: N/A State of AFG node 0x01: Power: setting=UNKNOWN, actual=UNKNOWN, Error, Clock-stop-OK, Setting-reset Invalid AFG subtree Codec: Intel Generic Address: 2 AFG Function Id: 0x1 (unsol 0) Vendor Id: 0x8086280b Subsystem Id: 0x80860101 Revision Id: 0x100000 No Modem Function Group found Default PCM: N/A Default Amp-In caps: N/A Default Amp-Out caps: N/A State of AFG node 0x01: Power: setting=UNKNOWN, actual=UNKNOWN, Error, Clock-stop-OK, Setting-reset Invalid AFG subtree --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 7 Nov 23 19:51 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 5 Nov 23 19:51 /dev/snd/hwC0D0 crw-rw---- 1 root audio 116, 6 Nov 23 19:51 /dev/snd/hwC0D2 crw-rw---- 1 root audio 116, 3 Nov 23 20:05 /dev/snd/pcmC0D0c crw-rw---- 1 root audio 116, 2 Nov 23 20:05 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 4 Nov 23 19:59 /dev/snd/pcmC0D3p crw-rw---- 1 root audio 116, 1 Nov 23 19:51 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Nov 23 19:51 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Nov 23 19:51 . drwxr-xr-x 3 root root 220 Nov 23 19:51 .. lrwxrwxrwx 1 root root 12 Nov 23 19:51 pci-0000:00:1f.3 -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: Generic Analog [Generic Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: Generic Digital [Generic Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: Generic Analog [Generic Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card PCH Card sysdefault:0 'PCH'/'HDA Intel PCH at 0x82620000 irq 90' Mixer name : 'Cirrus Logic Generic' Components : 'HDA:10138409,106b3600,00100100 HDA:8086280b,80860101,00100000' Controls : 18 Simple ctrls : 5 Simple mixer control 'PCM',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 244 [96%] [-2.20dB] Front Right: Playback 244 [96%] [-2.20dB] Simple mixer control 'Mic',0 Capabilities: cswitch cswitch-joined cswitch-exclusive Capture exclusive group: 0 Capture channels: Mono Mono: Capture [off] Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'Internal Mic',0 Capabilities: cvolume cswitch cswitch-exclusive Capture exclusive group: 0 Capture channels: Front Left - Front Right Limits: Capture 0 - 63 Front Left: Capture 63 [100%] [12.00dB] [on] Front Right: Capture 63 [100%] [12.00dB] [on] Simple mixer control 'Internal Mic Boost',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 2 Front Left: 2 [100%] [20.00dB] Front Right: 2 [100%] [20.00dB] !!Alsactl output !!-------------- --startcollapse-- state.PCH { control.1 { iface MIXER name 'Capture Source' value 'Internal Mic' comment { access 'read write' type ENUMERATED count 1 item.0 'Internal Mic' item.1 Mic } } control.2 { iface MIXER name 'Internal Mic Capture Volume' value.0 63 value.1 63 comment { access 'read write' type INTEGER count 2 range '0 - 63' dbmin -5100 dbmax 1200 dbvalue.0 1200 dbvalue.1 1200 } } control.3 { iface MIXER name 'Internal Mic Capture Switch' value.0 true value.1 true comment { access 'read write' type BOOLEAN count 2 } } control.4 { iface MIXER name 'Internal Mic Boost Volume' value.0 2 value.1 2 comment { access 'read write' type INTEGER count 2 range '0 - 2' dbmin 0 dbmax 2000 dbvalue.0 2000 dbvalue.1 2000 } } control.5 { iface CARD name 'Internal Mic Phantom Jack' value true comment { access read type BOOLEAN count 1 } } control.6 { iface CARD name 'Mic Phantom Jack' value true comment { access read type BOOLEAN count 1 } } control.7 { iface CARD name 'Speaker Front Phantom Jack' value true comment { access read type BOOLEAN count 1 } } control.8 { iface CARD name 'Speaker Surround Phantom Jack' value true comment { access read type BOOLEAN count 1 } } control.9 { iface CARD name 'Headphone Phantom Jack' value true comment { access read type BOOLEAN count 1 } } control.10 { iface PCM name 'Playback Channel Map' value.0 3 value.1 4 value.2 0 value.3 0 comment { access read type INTEGER count 4 range '0 - 36' } } control.11 { iface PCM name 'Capture Channel Map' value.0 0 value.1 0 comment { access read type INTEGER count 2 range '0 - 36' } } control.12 { iface MIXER name 'IEC958 Playback Con Mask' value '0fff000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access read type IEC958 count 1 } } control.13 { iface MIXER name 'IEC958 Playback Pro Mask' value '0f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access read type IEC958 count 1 } } control.14 { iface MIXER name 'IEC958 Playback Default' value '0400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.15 { iface MIXER name 'IEC958 Playback Switch' value false comment { access 'read write' type BOOLEAN count 1 } } control.16 { iface CARD name 'HDMI Jack' value true comment { access read type BOOLEAN count 1 } } control.17 { iface PCM device 3 name 'Playback Channel Map' value.0 0 value.1 0 comment { access read type INTEGER count 2 range '0 - 36' } } control.18 { iface MIXER name 'PCM Playback Volume' value.0 244 value.1 244 comment { access 'read write user' type INTEGER count 2 range '0 - 255' tlv '0000000100000008ffffec1400000014' dbmin -5100 dbmax 0 dbvalue.0 -220 dbvalue.1 -220 } } } --endcollapse-- !!All Loaded Modules !!------------------ 8250_dw ac97_bus aesni_intel af_alg algif_hash algif_skcipher apple_mfi_fastcharge applesmc applespi autofs4 binfmt_misc bluetooth bnep brcmfmac brcmfmac_wcc brcmutil btbcm btintel btqca btrtl cdc_ether cec cfg80211 cmac coretemp crc32_pclmul crct10dif_pclmul cryptd crypto_simd dmi_sysfs drm_buddy drm_display_helper dw_dmac dw_dmac_core ecc ecdh_generic efi_pstore ghash_clmulni_intel hci_uart i2c_algo_bit i2c_i801 i2c_smbus i915 idma64 input_leds intel_cstate intel_lpss intel_lpss_pci intel_pmc_core intel_pmc_core_pltdrv intel_powerclamp intel_rapl_common intel_rapl_msr intel_tcc_cooling intel_uncore_frequency intel_uncore_frequency_common intel_vsec intel_xhci_usb_role_switch ip_tables irqbypass joydev kvm kvm_intel lp mac_hid mei mei_hdcp mei_me mei_pxp mii msr nfnetlink nls_iso8859_1 nvme nvme_auth nvme_core parport parport_pc pmt_class pmt_telemetry polyval_clmulni polyval_generic ppdev qrtr rapl rc_core rfcomm rndis_host sbs sbshc sch_fq_codel sha1_ssse3 sha256_ssse3 snd snd_compress snd_hda_codec snd_hda_codec_cs8409 snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_core snd_hda_ext_core snd_hda_intel snd_hrtimer snd_hwdep snd_intel_dspcfg snd_intel_sdw_acpi snd_pcm snd_pcm_dmaengine snd_rawmidi snd_seq snd_seq_device snd_seq_dummy snd_seq_midi snd_seq_midi_event snd_soc_acpi snd_soc_acpi_intel_match snd_soc_avs snd_soc_core snd_soc_hda_codec snd_soc_hdac_hda snd_sof snd_sof_intel_hda snd_sof_intel_hda_common snd_sof_intel_hda_mlink snd_sof_pci snd_sof_pci_intel_skl snd_sof_utils snd_sof_xtensa_dsp snd_timer soundcore soundwire_bus soundwire_cadence soundwire_generic_allocation soundwire_intel spi_pxa2xx_platform thunderbolt ttm usbnet video wmi x86_pkg_temp_thermal x_tables xhci_pci xhci_pci_renesas !!Sysfs Files !!----------- /sys/class/sound/hwC0D0/init_pin_configs: 0x24 0x90100110 0x25 0x90100111 0x26 0x400000f0 0x27 0x400000f0 0x28 0x400000f0 0x29 0x400000f0 0x2a 0x400000f0 0x2b 0x400000f0 0x2c 0x002b4020 0x2d 0x400000f0 0x2e 0x400000f0 0x2f 0x400000f0 0x30 0x400000f0 0x31 0x400000f0 0x32 0x400000f0 0x33 0x400000f0 0x34 0x400000f0 0x35 0x400000f0 0x36 0x400000f0 0x37 0x400000f0 0x38 0x400000f0 0x39 0x400000f0 0x3a 0x400000f0 0x3b 0x400000f0 0x3c 0x00ab9030 0x3d 0x400000f0 0x3e 0x400000f0 0x3f 0x400000f0 0x40 0x400000f0 0x41 0x400000f0 0x42 0x400000f0 0x43 0x400000f0 0x44 0xa0a60100 0x45 0x400000f0 /sys/class/sound/hwC0D0/driver_pin_configs: /sys/class/sound/hwC0D0/user_pin_configs: /sys/class/sound/hwC0D0/init_verbs: /sys/class/sound/hwC0D0/hints: /sys/class/sound/hwC0D2/init_pin_configs: 0x03 0x18560010 /sys/class/sound/hwC0D2/driver_pin_configs: /sys/class/sound/hwC0D2/user_pin_configs: /sys/class/sound/hwC0D2/init_verbs: /sys/class/sound/hwC0D2/hints: !!ALSA/HDA dmesg !!-------------- !!Packages installed !!-------------------- ii alsa-topology-conf 1.2.5.1-2 all ALSA topology configuration files ii alsa-ucm-conf 1.2.10-1ubuntu5.2 all ALSA Use Case Manager configuration files ii alsa-utils 1.2.9-1ubuntu5 amd64 Utilities for configuring and using ALSA