seem no capture controls pulseaudio don't support 4 channels volume control
http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa /alsa-mixer.c?id=527078523815587bfd021bc1d10782403e9b3e84 Card hw:1 'USB'/'E-MU Systems, Inc. E-MU 0404 | USB at usb-0000:00:1d.7-2, high speed' Mixer name : 'USB Mixer' Components : 'USB041e:3f04' Controls : 9 Simple ctrls : 5 Simple mixer control 'PCM',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right - Rear Left - Rear Right Limits: Playback 0 - 200 Mono: Front Left: Playback 160 [80%] [-20.00dB] [on] Front Right: Playback 160 [80%] [-20.00dB] [on] Rear Left: Playback 160 [80%] [-20.00dB] [on] Rear Right: Playback 160 [80%] [-20.00dB] [on] Default sink name: alsa_output.usb-E-MU_Systems__Inc._E-MU_0404___USB_E-MU-E5-3F04-07D90512-08FE3-STATION_01-00-USB.analog-stereo Default source name: alsa_output.usb-E-MU_Systems__Inc._E-MU_0404___USB_E-MU-E5-3F04-07D90512-08FE3-STATION_01-00-USB.analog-stereo.monitor -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1366419 Title: [USB-Audio - E-MU 0404 | USB, playback] No Playback even with internal soundcard to "off" Status in “alsa-driver” package in Ubuntu: New Bug description: There seems to be no easy way to tell the application which soundcard to choose. Sometimes it works, sometimes it works half, but mostly it doesn't work. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 Date: Sat Sep 6 16:38:49 2014 InstallationDate: Installed on 2014-07-14 (54 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:USB failed Symptom_Card: E-Mu 0404 - E-MU 0404 | USB Symptom_Type: None of the above Title: [USB-Audio - E-MU 0404 | USB, playback] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/20/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68PZI Ver. F.0F dmi.board.name: 3072 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 24.0D dmi.chassis.asset.tag: CNU9501Y74 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68PZIVer.F.0F:bd10/20/2009:svnHewlett-Packard:pnHPProBook4510s:pvrF.0F:rvnHewlett-Packard:rn3072:rvrKBCVersion24.0D:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 4510s dmi.product.version: F.0F dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1366419/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
