我正在尝试通过带有内置声卡的耳机播放 Telegram 中的声音。
以下是产生音频输出通道的程序列表：
$ pactl list sink-inputs
Sink Input #4
Driver: protocol-native.c
Owner Module: 12
Client: 19
Sink: 2
Sample Specification: s16le 2ch 44100Hz
Channel Map: front-left,front-right
Format: pcm, format.sample_format = "\"s16le\"" format.rate = "44100" format.channels = "2" format.channel_map = "\"front-left,front-right\""
Corked: no
Mute: no
Volume: front-left: 42604 / 65% / -11,22 dB, front-right: 42604 / 65% / -11,22 dB
balance 0,00
Buffer Latency: 30725 usec
Sink Latency: 38824 usec
Resample method: n/a
Properties:
application.icon_name = "google-chrome"
media.name = "Playback"
application.name = "Chrome"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "30"
application.process.id = "3991"
application.process.user = "pastafarianist"
application.process.host = "DesktopPC"
application.process.binary = "chrome"
window.x11.display = ":0"
application.language = "es_ES.UTF-8"
application.process.machine_id = <long ID>
module-stream-restore.id = "sink-input-by-application-name:Chrome"
Sink Input #8
Driver: protocol-native.c
Owner Module: 12
Client: 29
Sink: 1
Sample Specification: float32le 2ch 44100Hz
Channel Map: front-left,front-right
Format: pcm, format.sample_format = "\"float32le\"" format.channels = "2" format.channel_map = "\"front-left,front-right\""
Corked: yes
Mute: no
Volume: front-left: 36052 / 55% / -15,57 dB, front-right: 36052 / 55% / -15,57 dB
balance 0,00
Buffer Latency: 69659 usec
Sink Latency: 18820 usec
Resample method: copy
Properties:
media.role = hex:
phonon.streamid = hex:
media.name = "Playback Stream"
application.name = "Telegram"
native-protocol.peer = "UNIX socket client"
native-protocol.version = "30"
application.process.id = "7257"
application.process.user = "pastafarianist"
application.process.host = "DesktopPC"
application.process.binary = "Telegram"
application.language = "es_ES.UTF-8"
window.x11.display = ":0"
application.process.machine_id = <long ID>
module-stream-restore.id = "sink-input-by-application-name:Telegram"
根据man pactl，
move-sink-input ID SINK
Move the specified playback stream
(identified by its numerical index)
to the specified sink (identified
by its symbolic name or numerical index).
但是当我尝试移动 Telegram 的频道时，
$ pactl move-sink-input 8 2
Failure: Invalid argument
移动 Chrome 有效。
$ pactl move-sink-input 4 1
不会产生任何错误。
Telegram 与 Chrome 有何不同？
答案1
这是因为 Telegram 指定音频流为 DONT_MOVE。您可以flags在输出中的字段下检查它pacmd list-sink-inputs