!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Fri Jul 26 00:32:33 UTC 2019 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: !!Kernel Information !!------------------ Kernel release: 4.19.57-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.19.57-v7 Library version: 1.1.3 Utilities version: 1.1.3 !!Loaded ALSA modules !!------------------- snd_bcm2835 snd_aloop !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 0 [ALSA ]: bcm2835_alsa - bcm2835 ALSA bcm2835 ALSA 1 [Loopback ]: Loopback - Loopback Loopback 1 !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_usb_audio: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : Y enable_hdmi : N enable_headphones : N force_bulk : N !!Module: snd_aloop enable : Y,N,N,N,N,N,N,N id : (null),(null),(null),(null),(null),(null),(null),(null) index : -1,-1,-1,-1,-1,-1,-1,-1 pcm_notify : 0,0,0,0,0,0,0,0 pcm_substreams : 8,8,8,8,8,8,8,8 !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Jul 26 02:23 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Jul 26 02:24 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 16 Jul 26 02:23 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 17 Jul 26 02:23 /dev/snd/pcmC0D1p crw-rw---- 1 root audio 116, 56 Jul 26 02:24 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 48 Jul 26 02:24 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 57 Jul 26 02:24 /dev/snd/pcmC1D1c crw-rw---- 1 root audio 116, 49 Jul 26 02:24 /dev/snd/pcmC1D1p crw-rw---- 1 root audio 116, 1 Jul 26 02:23 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jul 26 02:23 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 80 Jul 26 02:24 . drwxr-xr-x 3 root root 260 Jul 26 02:24 .. lrwxrwxrwx 1 root root 12 Jul 26 02:24 platform-snd_aloop.0 -> ../controlC1 lrwxrwxrwx 1 root root 12 Jul 26 02:23 platform-soc:audio -> ../controlC0 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) pcm.!default { type plug playback.pcm "out" capture.pcm "loopin" } pcm.out { type plug slave.pcm { type multi slaves { a { channels 2 pcm "output" } b { channels 2 pcm "loopout" } } bindings { 0 { slave a channel 0 } 1 { slave a channel 1 } 2 { slave b channel 0 } 3 { slave b channel 1 } } } ttable [ [ 1 0 1 0 ] # left -> a.left, b.left [ 0 1 0 1 ] # right -> a.right, b.right ] } pcm.loopout { type dmix ipc_key 1025 slave.pcm "hw:3,0,0" slave { period_time 0 period_size 1024 buffer_size 8192 channels 2 } bindings { 0 0 1 1 } } pcm.loopin { type plug slave.pcm "hw:3,1,0" } pcm.output { type dmix ipc_key 1024 slave.pcm "hw:1,0" slave { period_time 0 period_size 1024 buffer_size 8192 channels 2 } bindings { 0 0 1 1 } } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA] Subdevices: 7/7 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 IEC958/HDMI [bcm2835 IEC958/HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 ARECORD **** List of CAPTURE Hardware Devices **** card 1: Loopback [Loopback], device 0: Loopback PCM [Loopback PCM] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 card 1: Loopback [Loopback], device 1: Loopback PCM [Loopback PCM] Subdevices: 8/8 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 Subdevice #7: subdevice #7 !!Amixer output !!------------- !!-------Mixer controls for card 0 [ALSA] Card hw:0 'ALSA'/'bcm2835 ALSA' Mixer name : 'Broadcom Mixer' Components : '' Controls : 5 Simple ctrls : 1 Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback 400 [100%] [4.00dB] [on] !!-------Mixer controls for card 1 [Loopback] Card hw:1 'Loopback'/'Loopback 1' Mixer name : 'Loopback Mixer' Components : '' Controls : 96 Simple ctrls : 0 !!Alsactl output !!-------------- --startcollapse-- state.ALSA { control.1 { iface MIXER name 'PCM Playback Volume' value 400 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 400 } } control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface MIXER name 'PCM Playback Route' value 1 comment { access 'read write' type INTEGER count 1 range '0 - 2' } } control.4 { iface PCM name 'IEC958 Playback Default' value '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access 'read write' type IEC958 count 1 } } control.5 { iface PCM name 'IEC958 Playback Con Mask' value '0200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' comment { access read type IEC958 count 1 } } } state.Loopback { control.1 { iface PCM name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.2 { iface PCM name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.3 { iface PCM name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.4 { iface PCM name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.5 { iface PCM name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.6 { iface PCM name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.7 { iface PCM subdevice 1 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.8 { iface PCM subdevice 1 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.9 { iface PCM subdevice 1 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.10 { iface PCM subdevice 1 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.11 { iface PCM subdevice 1 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.12 { iface PCM subdevice 1 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.13 { iface PCM subdevice 2 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.14 { iface PCM subdevice 2 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.15 { iface PCM subdevice 2 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.16 { iface PCM subdevice 2 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.17 { iface PCM subdevice 2 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.18 { iface PCM subdevice 2 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.19 { iface PCM subdevice 3 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.20 { iface PCM subdevice 3 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.21 { iface PCM subdevice 3 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.22 { iface PCM subdevice 3 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.23 { iface PCM subdevice 3 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.24 { iface PCM subdevice 3 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.25 { iface PCM subdevice 4 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.26 { iface PCM subdevice 4 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.27 { iface PCM subdevice 4 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.28 { iface PCM subdevice 4 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.29 { iface PCM subdevice 4 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.30 { iface PCM subdevice 4 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.31 { iface PCM subdevice 5 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.32 { iface PCM subdevice 5 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.33 { iface PCM subdevice 5 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.34 { iface PCM subdevice 5 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.35 { iface PCM subdevice 5 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.36 { iface PCM subdevice 5 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.37 { iface PCM subdevice 6 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.38 { iface PCM subdevice 6 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.39 { iface PCM subdevice 6 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.40 { iface PCM subdevice 6 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.41 { iface PCM subdevice 6 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.42 { iface PCM subdevice 6 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.43 { iface PCM subdevice 7 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.44 { iface PCM subdevice 7 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.45 { iface PCM subdevice 7 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.46 { iface PCM subdevice 7 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.47 { iface PCM subdevice 7 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.48 { iface PCM subdevice 7 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.49 { iface PCM device 1 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.50 { iface PCM device 1 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.51 { iface PCM device 1 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.52 { iface PCM device 1 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.53 { iface PCM device 1 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.54 { iface PCM device 1 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.55 { iface PCM device 1 subdevice 1 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.56 { iface PCM device 1 subdevice 1 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.57 { iface PCM device 1 subdevice 1 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.58 { iface PCM device 1 subdevice 1 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.59 { iface PCM device 1 subdevice 1 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.60 { iface PCM device 1 subdevice 1 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.61 { iface PCM device 1 subdevice 2 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.62 { iface PCM device 1 subdevice 2 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.63 { iface PCM device 1 subdevice 2 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.64 { iface PCM device 1 subdevice 2 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.65 { iface PCM device 1 subdevice 2 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.66 { iface PCM device 1 subdevice 2 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.67 { iface PCM device 1 subdevice 3 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.68 { iface PCM device 1 subdevice 3 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.69 { iface PCM device 1 subdevice 3 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.70 { iface PCM device 1 subdevice 3 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.71 { iface PCM device 1 subdevice 3 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.72 { iface PCM device 1 subdevice 3 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.73 { iface PCM device 1 subdevice 4 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.74 { iface PCM device 1 subdevice 4 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.75 { iface PCM device 1 subdevice 4 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.76 { iface PCM device 1 subdevice 4 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.77 { iface PCM device 1 subdevice 4 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.78 { iface PCM device 1 subdevice 4 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.79 { iface PCM device 1 subdevice 5 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.80 { iface PCM device 1 subdevice 5 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.81 { iface PCM device 1 subdevice 5 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.82 { iface PCM device 1 subdevice 5 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.83 { iface PCM device 1 subdevice 5 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.84 { iface PCM device 1 subdevice 5 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.85 { iface PCM device 1 subdevice 6 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.86 { iface PCM device 1 subdevice 6 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.87 { iface PCM device 1 subdevice 6 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.88 { iface PCM device 1 subdevice 6 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.89 { iface PCM device 1 subdevice 6 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.90 { iface PCM device 1 subdevice 6 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } control.91 { iface PCM device 1 subdevice 7 name 'PCM Rate Shift 100000' value 100000 comment { access 'read write' type INTEGER count 1 range '80000 - 120000 (step 1)' } } control.92 { iface PCM device 1 subdevice 7 name 'PCM Notify' value false comment { access 'read write' type BOOLEAN count 1 } } control.93 { iface PCM device 1 subdevice 7 name 'PCM Slave Active' value false comment { access read type BOOLEAN count 1 } } control.94 { iface PCM device 1 subdevice 7 name 'PCM Slave Format' value 2 comment { access read type INTEGER count 1 range '0 - 52 (step 1)' } } control.95 { iface PCM device 1 subdevice 7 name 'PCM Slave Rate' value 48000 comment { access read type INTEGER count 1 range '0 - 192000 (step 1)' } } control.96 { iface PCM device 1 subdevice 7 name 'PCM Slave Channels' value 2 comment { access read type INTEGER count 1 range '1 - 1024 (step 1)' } } } --endcollapse-- !!All Loaded Modules !!------------------ Module snd_aloop bnep hci_uart btbcm serdev bluetooth ecdh_generic spidev ftdi_sio usbserial brcmfmac brcmutil sha256_generic cfg80211 rfkill snd_soc_bcm2835_i2s raspberrypi_hwmon bcm2835_codec v4l2_mem2mem bcm2835_v4l2 snd_soc_core bcm2835_mmal_vchiq videobuf2_dma_contig v4l2_common videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_bcm2835 snd_compress videobuf2_common snd_pcm_dmaengine snd_pcm i2c_bcm2835 snd_timer snd videodev media spi_bcm2835 vc_sm_cma w1_gpio wire cn hwmon fixed uio_pdrv_genirq uio i2c_dev ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 3.986611] videodev: Linux video capture interface: v2.00 [ 3.996415] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 4.025516] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.