!!################################ !!ALSA Information Script v 0.4.64 !!################################ !!Script ran on: Wed Feb 22 18:27:23 UTC 2017 !!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: 4.4.38-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k4.4.38-v7 Library version: 1.0.28 Utilities version: 1.0.28 !!Loaded ALSA modules !!------------------- snd_usb_audio !!Sound Servers on this system !!---------------------------- No sound servers found. !!Soundcards recognised by ALSA !!----------------------------- 1 [Device ]: USB-Audio - USB Audio Device C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.3, 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 vid : -1,-1,-1,-1,-1,-1,-1,-1 !!USB Mixer information !!--------------------- --startcollapse-- USB Mixer: usb_id=0x0d8c0014, ctrlif=0, ctlerr=0 Card: C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.3, full speed Unit: 9 Control: name="PCM Playback Volume", index=0 Info: id=9, control=2, cmask=0x3, channels=2, type="S16" Volume: min=-9472, max=0, dBmin=-3700, dBmax=0 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=-3072, max=5888, dBmin=-1200, dBmax=2300 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 Feb 22 19:19 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 56 Feb 22 19:19 /dev/snd/pcmC1D0c crw-rw---- 1 root audio 116, 48 Feb 22 19:19 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Feb 22 19:19 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Feb 22 19:19 /dev/snd/timer /dev/snd/by-id: total 0 drwxr-xr-x 2 root root 60 Feb 22 19:19 . drwxr-xr-x 4 root root 180 Feb 22 19:19 .. lrwxrwxrwx 1 root root 12 Feb 22 19:19 usb-C-Media_Electronics_Inc._USB_Audio_Device-00 -> ../controlC1 /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Feb 22 19:19 . drwxr-xr-x 4 root root 180 Feb 22 19:19 .. lrwxrwxrwx 1 root root 12 Feb 22 19:19 platform-3f980000.usb-usb-0:1.3:1.0 -> ../controlC1 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) pcm.!default { type hw card 1 } ctl.!default { type hw card 1 } !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 1: Device [USB Audio Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ARECORD **** List of CAPTURE Hardware Devices **** card 1: Device [USB Audio Device], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 !!Amixer output !!------------- !!-------Mixer controls for card 1 [Device] Card hw:1 'Device'/'C-Media Electronics Inc. USB Audio Device at usb-3f980000.usb-1.3, full speed' Mixer name : 'USB Mixer' Components : 'USB0d8c:0014' Controls : 7 Simple ctrls : 3 Simple mixer control 'PCM',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 37 Mono: Front Left: Playback 34 [92%] [-3.00dB] [on] Front Right: Playback 33 [89%] [-4.00dB] [on] Simple mixer control 'Mic',0 Capabilities: cvolume cvolume-joined cswitch cswitch-joined Capture channels: Mono Limits: Capture 0 - 35 Mono: Capture 35 [100%] [23.00dB] [on] Simple mixer control 'Auto Gain Control',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] !!Alsactl output !!-------------- --startcollapse-- state.Device { 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 0 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 34 value.1 33 comment { access 'read write' type INTEGER count 2 range '0 - 37' dbmin -3700 dbmax 0 dbvalue.0 -300 dbvalue.1 -400 } } 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 35 comment { access 'read write' type INTEGER count 1 range '0 - 35' dbmin -1200 dbmax 2300 dbvalue.0 2300 } } control.7 { iface MIXER name 'Auto Gain Control' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ Module bnep hci_uart btbcm bluetooth brcmfmac evdev brcmutil cfg80211 rfkill bcm2835_gpiomem i2c_bcm2708 bcm2835_wdt uio_pdrv_genirq uio snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device snd_pcm snd_timer snd i2c_dev ipv6 !!ALSA/HDA dmesg !!-------------- [ 2.291538] systemd[1]: Time has been changed [ 2.305305] usbcore: registered new interface driver snd-usb-audio [ 2.316734] systemd[1]: Started Load Kernel Modules.