怎样设置pulseauodio来更改左右声道？- Community

[Seek Help] 怎样设置pulseauodio来更改左右声道？

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catubibu

deepin

2024-09-01 11:51

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因安装位置，左右音响必须声道互换一下，搜了一个方法如下，结果没什么用，高人得空给指点一二？

Note: this was performed back in 2019.

Create additional pulse audio config directory if not already exists

$ sudo mkdir /etc/pulse/default.pa.d

Create additional config

$ sudo nano /etc/pulse/default.pa.d/reversed.pa
load-module module-remap-sink sink_name=reverse-stereo master=0 channels=2 master_channel_map=front-right,front-left channel_map=front-left,front-right

#Uncomment below if wanting to set as default

#set-default-sink reverse-stereo

Restart pulse audio NOTE: run without sudo

$ systemctl --user restart pulseaudio
Now you should be able to view the new audio device in Sound settings.

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W2J

deepin

2024-09-01 15:38

自己把 reverse-stereo 的 channel_map=front-left,font-right里面左右位置调换一下试试呗，好用再设为缺省

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enforcee

deepin

2024-09-01 17:35

如果音箱输入是两个插头的，反过来插就行了

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ggbond

deepin

2024-09-01 18:56

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catubibu

deepin

2024-09-01 20:07

以上的方法还是有问题的。最后以下列方法成功交换左右声道。原帖：https://unix.stackexchange.com/questions/718668/switch-invert-left-and-right-audio-channels-on-linux-system-wide

First, get sink (device) name:

$ pactl get-default-sink
...
Name: device-xxx
Reverse channels:

$ pacmd load-module module-remap-sink master=device-xxx sink_name=Inversed-PA sink_properties=device.description=Inversed-PA channels=2 channel_map=front-left,front-right master_channel_map=front-right,front-left

where

master= the device according pactl output.
sink_name= is for pulseaudio.
sink_properties=device.description= is for pavucontrol.
Last, select:

$ pactl set-default-sink Inversed-PA

以上做完了左右声道并未换过来，装了pulseaudio一看才明白，虽然Inversed-PA已经有了，但是并没有应用在主通道。得在app里手动切换app的通道如图。如果会pactl命令的，应该能用一个命令搞定。