Fake is a pulseaudio client that can inject ogg files like a microphone to any recording app on linux.
To build it, run :
meson setup build
ninja -C build
ninja -C installFake creates a pipeline structure of virtual sink, virtual combined sinks and loopback module to perform its magical work. This structure allows separate volume control of the played audio file both to the recording app and to your personnal headphones/headsets/... It also allows you to be kept recorded while the audio is playing; you can still talk to your friends while streaming them music ! This structure is however not cpu costless and all those intermediates streaming devices could decrease your processing performances a bit. Although this structure is not CPU-costless, most of the experienced performance drop originates from the recording app.
- If the structure of the software interests you, here is a summarized view of it :
If you prefer using a GUI, you can use Control's for Fake GUI frontend. Control's for Fake link .
Usage: FakeMicWavPlayer [options] <Ogg File> <Source> <Process Binary>
Positional arguments:
<Ogg File> The ogg audio file to play.
<Source> The source name to keep recording with
<Process Binary> The binary name of the app to send the sound to.
Optional arguments:
-h --help show this help message and exit
-s --sink-list The comma-sepatated list of sinks to play the ogg file to.
- The ogg file is an audio file in ogg vorbis format
- The source is the name of the pulseaudio source to record. This options allows to keep recording your voice while playing the audio. To find out the name of your microphone, headset or other audio input devices, you can use
pactl list short sources. The data you're interested in is the second column. In my case, running this command outputs :
Output of
pactl list short sources:
0 alsa_output.pci-0000_00_1f.3.analog-stereo.monitor module-alsa-card.c s16le 2ch 48000Hz SUSPENDED
1 alsa_input.pci-0000_00_1f.3.analog-stereo module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
So if I'd want to keep my voice recorded with the internal mic, I'd use :
./FakeMicWavPlayer MyMusic.ogg alsa_input.pci-0000_00_1f.3.analog-stereo MyRecordingAppBinaryName
- The process binary is the binary-filename of your recording app. In the case of discord, on most linux distributions you will set it to
Discord(some exceptions exist like in NixOS where the binary wrapping changes the binary name, you would set it to.Discord-wrapped) - The optional pulseaudio sinks is a comma separated list of pulseaudio sinks that you want Fake to play in alongside with the virtual sink. This option should be used if you want to hear the wav file played. To know which values you can put, plug the device you want to listen on (if it's not an internal device) and run
pactl list short sinks. The second column of the table contains the names of all your devices. You just have to copy them. Here is an example :
The output of pactl is for me :
1 alsa_output.pci-0000_00_1f.3.analog-stereo module-alsa-card.c s32le 2ch 44100Hz SUSPENDED
9 alsa_output.usb-Sennheiser_Sennheiser_SC60_for_Lync_55ef416267-00.analog-stereo module-alsa-card.c s16le 2ch 44100Hz SUSPENDED
So if I wan't to hear the wav on my sennheiser headsets and on my internal speakers, I would run :
./FakeMicWavPlayer -s alsa_output.pci-0000_00_1f.3.analog-stereo,alsa_output.usb-Sennheiser_Sennheiser_SC60_for_Lync_55ef416267-00.analog-stereo MyMusic.ogg <source> MyRecordingAppBinaryName
Fake requires :
Fake is just a little project, but feel free to fork, change, extend or correct the code.
Fake Mic Wav Player unloads all module-null-sink, module-combined-sink and module-combine-sink in existence as a cleanup precaution. This shouldn't bother most of the users except those who hack with pulseaudio.
Fake is delivered as it is under the well known MIT License
References that helped