URL: https://linuxfr.org/forums/linux-debutant/posts/haut-parleurs-sur-port-usb-muets
Title: haut parleurs sur port USB, muets?
Authors: pho0o0
Date: 2014年03月04日T22:41:34+01:00
License: CC By-SA
Tags: 
Score: 2
bonjour,
j'ai acheté des petits haut-parleurs qui se branchent sur port USB, mais qui sont muets ... 
les anciens marchaient bien, donc le problème est là.
je fais la commande:
> ~$ lsusb
> Bus 001 Device 009: ID 074d:a504 Micronas GmbH
mais je ne sais pas quel pilote chercher chez Micronas...
y a t-il une commande qui me permette d'en savoir plus?
la commande > $ pacmd list-sinks
me donne> card: 9 <alsa_card.usb-soundscience-trlq_qsb-00-qsb>
	module: 30
	properties:
		alsa.resolution_bits = "16"
		device.api = "alsa"
		device.class = "sound"
		alsa.class = "generic"
		alsa.subclass = "generic-mix"
		alsa.name = "USB Audio"
		alsa.id = "USB Audio"
		alsa.subdevice = "0"
		alsa.subdevice_name = "subdevice #0"
		alsa.device = "0"
		alsa.card = "2"
		alsa.card_name = "QSB"
		alsa.long_card_name = "SoundScience-TRLQ QSB at usb-.&checktime(0000,00,1,':')d.0-1.3, full speed"
		alsa.driver_name = "snd_usb_audio"
		device.bus_path = "pci-.&checktime(0000,00,1,':')d.0-usb-0:1.3:1.0"
		sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/sound/card2"
		udev.id = "usb-SoundScience-TRLQ_QSB-00-QSB"
		device.bus = "usb"
		device.vendor.id = "074d"
		device.vendor.name = "Micronas GmbH"
		device.product.id = "a504"
		device.product.name = "QSB"
		device.serial = "SoundScience-TRLQ_QSB"
		device.string = "hw:2"
		device.buffering.buffer_size = "352800"
		device.buffering.fragment_size = "176400"
		device.access_mode = "mmap+timer"
		device.profile.name = "analog-stereo"
		device.profile.description = "Stéréo analogique"
		device.description = "QSB Stéréo analogique"
		alsa.mixer_name = "USB Mixer"
		alsa.components = "USB074d:a504"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-usb"
est-ce que je peux exploiter ces infos?
y a t-il une autre solution?
merci d'avance
:)
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