不播放音频时有静电噪音

Question

我遇到了这个问题，当我开始播放任何音频时，我听到扬声器发出静态噪音，这种噪音会消失，而当我不播放任何音频时，噪音会在几秒钟后恢复。

Answer 1

按照这些说明，我在详细模式下运行pulseaudio：

$ systemctl --user stop pulseaudio.socket
$ systemctl --user stop pulseaudio.service
$ pulseaudio -v

每次静态噪音开始时，我都会发现以下输出：

I: [pulseaudio] module-suspend-on-idle.c: Source alsa_input.usb-Logitech_Logitech_Wireless_Headset_88C626977831-00.multichannel-input idle for too long, suspending ...
I: [alsa-source-USB Audio] alsa-source.c: Device suspended...
I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.pci-0000_07_00.6.analog-stereo idle for too long, suspending ...
I: [alsa-sink-ALC887-VD Analog] alsa-sink.c: Device suspended...
I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.pci-0000_07_00.1.hdmi-stereo idle for too long, suspending ...
I: [alsa-sink-HDMI 0] alsa-sink.c: Device suspended...
I: [pulseaudio] module-suspend-on-idle.c: Sink alsa_output.usb-Logitech_Logitech_Wireless_Headset_88C626977831-00.analog-stereo idle for too long, suspending ...
I: [alsa-sink-USB Audio] alsa-sink.c: Device suspended...

然后，我注释掉了这一行/etc/pulse/default.pa：

### load-module module-suspend-on-idle

最后，我重新启动计算机，静电噪音消失了:)