[pulseaudio-tickets] [PulseAudio] #711: Add mixer Element Headphones Impedance to alsa-mixer configuration

[PulseAudio]

#711: Add mixer  Element Headphones Impedance to alsa-mixer configuration
--------------------------+-------------------------------------------------
  Reporter:  kaeru        |       Owner:  lennart      
      Type:  enhancement  |      Status:  new          
 Milestone:               |   Component:  module-alsa-*
Resolution:               |    Keywords:               
--------------------------+-------------------------------------------------

Comment(by kaeru):

 The following in analog.output.conf.common will be combined into a single
 port option as in documentation.

 It works, with the caveat that the speaker-1/impedence options doesn't
 actually do anything for the Asus Xonar Essence as the impedance settings
 only affect output when Headphones and 'FP Headphones' is selected.
 (#702).

 {{{
 [Element Headphones Impedance]
 enumeration = select

 [Option Headphones Impedance:< 64 ohms]
 name = 64ohm

 [Option Headphones Impedance:64-300 ohms]
 name = 64-300ohms

 [Option Headphones Impedance:300-600 ohms]
 name = 300-600ohms
 }}}

 The full amixer output for upcoming alsa 1.0.22 for this card is as
 follows for reference:

 {{{

 Simple mixer control 'Master',0
   Capabilities: pvolume pswitch pswitch-joined
   Playback channels: Front Left - Front Right
   Limits: Playback 135 - 255
   Mono:
   Front Left: Playback 135 [0%] [-60.00dB] [on]
   Front Right: Playback 135 [0%] [-60.00dB] [on]
 Simple mixer control 'Headphones Impedance',0
   Capabilities: penum
   Items: '< 64 ohms' '64-300 ohms' '300-600 ohms'
   Item0: '< 64 ohms'
 Simple mixer control 'Line',0
   Capabilities: cswitch cswitch-joined
   Capture channels: Mono
   Mono: Capture [on]
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined
   Capture channels: Mono
   Limits: Capture 0 - 31
   Mono: Capture 0 [0%] [-34.50dB] [off]
 Simple mixer control 'Mic Boost (+20dB)',0
   Capabilities: pswitch pswitch-joined
   Playback channels: Mono
   Mono: Playback [off]
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined
   Playback channels: Mono
   Mono: Playback [off]
 Simple mixer control 'Aux',0
   Capabilities: cvolume cswitch cswitch-joined
   Capture channels: Front Left - Front Right
   Limits: Capture 0 - 31
   Front Left: Capture 23 [74%] [0.00dB] [off]
   Front Right: Capture 23 [74%] [0.00dB] [off]
 Simple mixer control 'Analog Input Monitor',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
   Playback channels: Mono
   Limits: Playback 0 - 1
   Mono: Playback 1 [100%] [0.00dB] [off]
 Simple mixer control 'Analog Output',0
   Capabilities: enum
   Items: 'Speakers' 'Headphones' 'FP Headphones'
   Item0: 'Headphones'
 Simple mixer control 'DAC Filter',0
   Capabilities: penum
   Items: 'Sharp Roll-off' 'Slow Roll-off'
   Item0: 'Sharp Roll-off'
 Simple mixer control 'DAC Oversampling',0
   Capabilities: penum
   Items: '64x' '128x'
   Item0: '64x'

 }}}

-- 
Ticket URL: <http://pulseaudio.org/ticket/711#comment:2>
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