!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Fri Jan 3 12:24:25 UTC 2020 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 4.19.66-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.19.66-v7 Library version: 1.1.8 Utilities version: 1.1.8 !!Loaded ALSA modules !!------------------- snd_usb_audio !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - No Jack: Installed - Yes (/usr/bin/jackd) Running - No !!Soundcards recognised by ALSA !!----------------------------- 1 [Set ]: USB-Audio - C-Media USB Headphone Set C-Media USB Headphone Set at usb-3f980000.usb-1.4, full speed !!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_usb_audio autoclock : Y device_setup : 0,0,0,0,0,0,0,0 enable : Y,Y,Y,Y,Y,Y,Y,Y id : (null),(null),(null),(null),(null),(null),(null),(null) ignore_ctl_error : N index : -2,-1,-1,-1,-1,-1,-1,-1 pid : -1,-1,-1,-1,-1,-1,-1,-1 quirk_alias : (null),(null),(null),(null),(null),(null),(null),(null) use_vmalloc : Y vid : -1,-1,-1,-1,-1,-1,-1,-1 !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x0d8c000c, ctrlif=0, ctlerr=0 Card: C-Media USB Headphone Set at usb-3f980000.usb-1.4, full speed Unit: 9 Control: name="PCM Playback Volume", index=0 Info: id=9, control=2, cmask=0x3, channels=2, type="S16" Volume: min=-7264, max=-16, dBmin=-2837, dBmax=-6 Unit: 9 Control: name="PCM Playback Switch", index=0 Info: id=9, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 10 Control: name="Auto Gain Control", index=0 Info: id=10, control=7, cmask=0x0, channels=1, type="BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 Unit: 10 Control: name="Mic Capture Volume", index=0 Info: id=10, control=2, cmask=0x0, channels=1, type="S16" Volume: min=0, max=6096, dBmin=0, dBmax=2381 Unit: 10 Control: name="Mic Capture Switch", index=0 Info: id=10, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" Volume: min=0, max=1, dBmin=0, dBmax=0 --endcollapse-- !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 32 Jan 3 13:10 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 56 Jan 3 13:10 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 48 Jan 3 13:21 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Jan 3 13:10 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Jan 3 13:10 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Jan 3 13:10 . drwxr-xr-x 4 root root 180 Jan 3 13:10 .. lrwxrwxrwx 1 root root 12 Jan 3 13:10 usb-0d8c_C-Media_USB_Headphone_Set-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Jan 3 13:10 . drwxr-xr-x 4 root root 180 Jan 3 13:10 .. lrwxrwxrwx 1 root root 12 Jan 3 13:10 platform-3f980000.usb-usb-0:1.4:1.0 -> ../controlC1 !!ALSA configuration files !!------------------------ !!User specific config file (~/.asoundrc) pcm.!default { type hw card 1 } ctl.!default { type hw card 1 } !!System wide config file (/etc/asound.conf) #ctl.equal { #type equal; #controls "/home/pi/.alsaequal.bin" #} #pcm.plugequal { #type equal; #slave.pcm "plughw:1,0"; #controls "/home/pi/.alsaequal.bin" #} #pcm.equal { #type plug; #slave.pcm plugequal; #} #pcm_slave.hw_Loopback_1_2 { # pcm "hw:Loopback,1,2" # format S16_LE # channels 2 # rate 48000 #} #pcm.plug_Loopback_1_2 { # type plug # slave hw_Loopback_1_2 # ttable { # 0.0 = 1 # 0.1 = 1 # } #} pcm.mmap0 { type mmap_emul; slave { pcm "hw:0,0"; } } # pcm.lowrec { type plug; slave { pcm "hw:1,0"; } } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 1: Set [C-Media USB Headphone Set], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 1: Set [C-Media USB Headphone Set], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card 1 [Set] Card hw:1 'Set'/'C-Media USB Headphone Set at usb-3f980000.usb-1.4, full speed' Mixer name : 'USB Mixer' Components : 'USB0d8c:000c' Controls : 8 Simple ctrls : 3 Simple mixer control 'PCM',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 151 Mono: Front Left: Playback 151 [100%] [-0.06dB] [on] Front Right: Playback 151 [100%] [-0.06dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 16 Mono: Capture 6 [38%] [8.92dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] !!Alsactl output !!-------------- --startcollapse-- state.Set { control.1 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 comment { access read type INTEGER count 2 range '0 - 36' } } control.2 { iface PCM name 'Capture Channel Map' value 2 comment { access read type INTEGER count 1 range '0 - 36' } } control.3 { iface MIXER name 'PCM Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.4 { iface MIXER name 'PCM Playback Volume' value.0 151 value.1 151 comment { access 'read write' type INTEGER count 2 range '0 - 151' dbmin -9999999 dbmax -6 dbvalue.0 -6 dbvalue.1 -6 } } control.5 { iface MIXER name 'Mic Capture Switch' value true comment { access 'read write' type BOOLEAN count 1 } } control.6 { iface MIXER name 'Mic Capture Volume' value 6 comment { access 'read write' type INTEGER count 1 range '0 - 16' dbmin 0 dbmax 2381 dbvalue.0 892 } } control.7 { iface MIXER name 'Auto Gain Control' value false comment { access 'read write' type BOOLEAN count 1 } } control.8 { iface CARD name 'Keep Interface' value false comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module fuse rfcomm bnep hci_uart btbcm serdev bluetooth ecdh_generic snd_usb_audio brcmfmac joydev evdev snd_hwdep snd_usbmidi_lib sg brcmutil snd_rawmidi snd_seq_device snd_pcm sha256_generic uas snd_timer snd cfg80211 rfkill bcm2835_codec bcm2835_v4l2 v4l2_mem2mem raspberrypi_hwmon bcm2835_mmal_vchiq videobuf2_dma_contig hwmon v4l2_common videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev media vc_sm_cma uio_pdrv_genirq uio fixed i2c_dev ip_tables x_tables ipv6 !!ALSA/HDA dmesg !!-------------- [ 24.832547] usbcore: registered new interface driver brcmfmac [ 24.863910] usbcore: registered new interface driver snd-usb-audio [ 25.097638] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1