- GETTING AUDIO LOOPBACK NAUDIODON HOW TO
- GETTING AUDIO LOOPBACK NAUDIODON INSTALL
- GETTING AUDIO LOOPBACK NAUDIODON UPDATE
The primary purpose of the loopback tap is to provide a reference stream for applications that want to do acoustic echo cancelation. What I do know (not sure if that is the cause) is that calling mEndpointVolume->QueryHardwareSupport(&dwMask) gives dwMask=2 on the computer that works as I want ( ENDPOINT_HARDWARE_SUPPORT_MUTE The audio endpoint device supports a hardware mute control.)īUT gives dwMask=7 which is combination of all three below on the computer where it does not work as I want.ĮNDPOINT_HARDWARE_SUPPORT_VOLUME The audio endpoint device supports a hardware volume control.ĮNDPOINT_HARDWARE_SUPPORT_MUTE The audio endpoint device supports a hardware mute control.ĮNDPOINT_HARDWARE_SUPPORT_METER The audio endpoint device supports a hardware peak meter. I.E to capture all computer sounds using wasapi loopback but that nothing will be heard on PC speakers and that when user change the Master volume that this will have no effect on the wasapi capturing
GETTING AUDIO LOOPBACK NAUDIODON HOW TO
I need advice how to make what i want to work on all computers. Also changing the master volume change as well the volume of the sounds wasapi captures.
![getting audio loopback naudiodon getting audio loopback naudiodon](https://www.golfdigest.com/content/dam/images/golfdigest/fullset/2022/1/x-br/20220114-Hoodies.jpg)
Problem: But on another computer (asus) Setting master volume to 0 using SetMasterVolumeLevelScalar does change the volume of the sounds wasapi captures. Sounds AND PC speakers do not make any sounds.Īlso, seems that changing the master volume does not change the volume of what is captured by wasapi (only changing the sounds from the application the make the sounds - for example Media Player, change the volume of the sounds wasapi capture) - as i want.Įverything good - this is what i want (I want that nothing will be heard on the PC speakers and I want that changing the master volume (the volume of the speakers) will have not effect on the volume of the sounds wasapi captures). Seems that it should make wasapi playback to not work as i want (i.e to capture silent only since I set the master volume to 0 which is not what i want), BUT this does not happen. So I use: mEndpointVolume->SetMasterVolumeLevelScalar((float)0, NULL) Problem is that I want it to work while the computer speakers will not produce any sound. Now in Audacity, you can File -> Import -> Raw Data and check for an audio waveform.I capture all sounds using wasapi loopback using this code: Īnd save it to a file. Wait a while as you record the audio in - check your sound levels in SoundflowerBed, etc. SampleFormat: portAudio.SampleFormat16Bit,ĭeviceId: 2, // choose id for Soundflower (2CH)Ĭonst ws = fs.createWriteStream('rawAudio.raw') Use this to find out the device id for soundflower I recommend you run this line by line in the node console after installing the required packages. Github:psnyder/naudiodon#feature/dont-write-to-console-on-buffer-overflow My fork is available here if you want, but I don't think I did anything specific for this to work. This was tested in Node 8.17.0, with my fork of naudiodon which removed console logging on buffer overflow because it messed with my terminal UI. Once I had that working, I was able to use naudiodon to record the raw audio data.
![getting audio loopback naudiodon getting audio loopback naudiodon](https://www.ti.com/ds_dgm/images/fbd_snls654a.png)
![getting audio loopback naudiodon getting audio loopback naudiodon](https://assets.new.siemens.com/siemens/assets/api/uuid:25e07e9c-48b7-4c33-9e63-e984d4afd785/width:2000/quality:high/converting-slitting-key-visual-2022.jpg)
I ended up using Soundflower and SoundflowerBed to setup audio routing.
GETTING AUDIO LOOPBACK NAUDIODON UPDATE
Will update with my findings after I've had some time to play around with it.įor my project, I wanted to run spectrum analysis on the system audio out. looks to be a good replacement and it installs just fine.
GETTING AUDIO LOOPBACK NAUDIODON INSTALL
I'm about to start some dev work on a similar project but was having issues getting node-core-audio to install so I had to find a different module.