[pulseaudio-discuss] why do I use pacat/parec to record monitor device always at the same volume?

[Chengyi Zhao]

Thanks a lot!

I found that the default volume of the monitor device is 50%. This is a 
very strange phenomenon. Is it possible to make the volume of the 
monitor device follow the volume of the monitored device?

Thanks,
Chengyi

On 2021/11/18 下午10:06, guest271314 wrote:
> I have used parec to capture system audio and have not noticed that 
> volume is always the same. The resulting volume of the recording is 
> reflective of the system volume, for example, set at pavucontrol.
> 
> On Thu, Nov 18, 2021 at 5:26 AM Chengyi Zhao <zhaochengyi at uniontech.com 
> <mailto:zhaochengyi at uniontech.com>> wrote:
> 
>     Hi guys,
> 
>     Would you please tell me why I use pacat/parec to record monitor device
>     always at the same volume?
> 
>     I use pacat/parec to record the sound played by the video player, but
>     the volume is always the same. Is there any way to make the recording
>     volume consistent with the playback volume?
> 
>     Example:
>     pacat --record -d alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor >
>     dump.raw
> 
>     Thanks you very much!
> 
>     Best Regards,
>     Chengyi
> 
> 
>