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configure ALSA for usb DAC + AMP + Headphones
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Guest08132015
n00b
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Joined: 13 Aug 2015
Posts: 8

PostPosted: Sun Aug 30, 2015 5:23 pm    Post subject: configure ALSA for usb DAC + AMP + Headphones Reply with quote

I have usb DAC Schiit Modi 2 it connected to AMP Schiit Magni 2 with 2xRCA - 2xRCA. And Headphones Beyerdynamic DT 990 connected to amplifier with jack (1/4")
Please help me to configure ALSA for use it.

My current /etc/modprobe.d/alsa.conf:

Code:
# ALSA portion
alias char-major-116 snd
alias snd-card-0 snd-usb-audio
alias snd-card-1 snd-hda-intel

# OSS/Free portion
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0
alias sound-slot-1 snd-card-1

#SOUND CARDS

#USB DAC Schiit Modi 2
options snd-usb-audio index=0 vid=0x0d8c pid=0x1319
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

#HDA Intel PCH & NVidia
options snd-hda-intel index=1,2 vid=0x8086,0x10de pid=0x8c20,0x0e1b
alias sound-service-1-0 snd-mixer-oss
alias sound-service-1-1 snd-seq-oss
alias sound-service-1-3 snd-pcm-oss
alias sound-service-1-8 snd-seq-oss
alias sound-service-1-12 snd-pcm-oss


# Set this to the correct number of cards.
options snd major=116 cards_limit=3


WIth PulseAudio it's work, but I want use only ALSA.

aplay -l
Code:
**** List of PLAYBACK Hardware Devices ****
card 0: Device [USB Modi Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC1150 Analog [ALC1150 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 1: ALC1150 Digital [ALC1150 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 3: ID 42 Digital [ID 42 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


Last edited by Guest08132015 on Sun Aug 30, 2015 5:57 pm; edited 2 times in total
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Logicien
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Joined: 16 Sep 2005
Posts: 950
Location: Montréal

PostPosted: Sun Aug 30, 2015 5:52 pm    Post subject: Reply with quote

The command
Code:
aplay -l

is a starting point to know what is seen and usable. Than you can create an ~/.asoundrc and/or an /etc/asound.conf file(s). If you use Pulseaudio, those files must point to Pulseaudio as the 'sound card'.
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Paul
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