How does one record internal / system audio in Vegas

1AlaskanAssassin wrote on 9/23/2017, 10:09 AM

This may be simple but I've searched both Google and the forums for recording system audio / internal audio and have not figured it out. I know how to record with a mic, I want to record whatever the computer is playing. YouTube video, VLC, etc.

running Windows 10, Vegas 13, onyx blackjack when using the mic.


sound panel: recording tab options are:



line in

line (onyx blackjack) (default)


Thanks so much!


Former user wrote on 9/23/2017, 10:30 AM

My audio drivers do not support this under Windows 10. You need to see if your card is supported for this.

rraud wrote on 9/23/2017, 2:12 PM

That's a function of the soundcard. Some sound cards support recording 'What you hear' or 'Stereo out', some do not. For instance all three of my Dell PCs with Realtek audio cards (Vista Desktop, XP and Win 10 laptops had/have the option to record the output. All the A/V software had "Stereo Out" listed as a recording device. I had a two Toshiba Satellites for a short time that could not, so I got a free utility that allowed it.. sorry, I don't currently recall the name, but I'll find out when I'm in contact with the friends I gave them to.

Addendum/update: 'Virtual Audio Cable'. Thanks ryclark

ryclark wrote on 9/24/2017, 6:19 AM

Also right clicking in the white space under available devices in the Windows Recording panel shows a drop down menu where you set to see both Disabled and Disconnected Devices. Enable both to see if any hidden alternative recording sources appear.

Otherwise there are apps like VAC (Virtual Audio Cable) that you can download to route audio from one software to another.

Dexcon wrote on 9/24/2017, 6:43 AM

You can also possibly use the free Audacity waveform editor. If you set in preferences the audio host as Windows WASAPI and the recording device to the loopback selection that should hopefully appear in the dropdown box, it should work even if your soundcard doesn't natively support 'what you hear'.

rraud wrote on 8/15/2019, 11:11 AM

"but they also be recorded into m4v files in case you are using Apple devices."

<.m4v> is the same as <.mp4>, both are containers. The extensions can be changed back and forth w/o issue but there would be no quality difference if the codecs are the same.Typically, MP4 files have AAC (Advanced Audio Coding) audio. The audio file w/o video can also often have a <.m4a>,<.mp4> or <.m4v> extension. I have not seen the <.m4v> extension used much working primarily in the Windows OS.

diverG wrote on 8/15/2019, 12:02 PM

Not sure if I have misunderstood your problem.

Control panel/Sound  Recording, set stereo mix as default.   Fire up Audition/Soundforge/Audacity, hit record.  Now play timeline.  Sound is recorded.

From experience this may not work if you have a sound card installed but always works on pc's using onboard Realtek sound.

Sys 1 Gig Z370-HD3, i7 8086K @ 5.0 Ghz 16gb ram, 250gb SSD, 2x2Tb hd,  GTX 1060 6Gb Vegas 14 & 17 plus Edius 8WG Win 10pro (1909) BMIP4k video out. (PS 650W)

Sys 2 Gig Z170-HD3, i7 6700K @ 3.8Ghz 16gb ram, 250gb SSD, 2x2Tb, hdd GTX 750ti,  Vegas 15 & 16 plus Edius 8WG Win 10pro (1909) BMIP4k video out. (PS 650W)

Sys 3 Laptop 'Clevo' i7 6700K @ 3.0ghz, 16gb ram, 250gb SSd + 2Tb hdd,   nvidia 940 M graphics. VP14 & 17 via humble bundle. Plus Edius 8WG Win 10pro (1909)


matthias-krutz wrote on 8/15/2019, 12:27 PM

I want to record whatever the computer is playing. YouTube video, VLC, etc.

For this purpose I use VB-Cable in version 4.3 on Win10.

Desktop: Ryzen R7 2700, RAM 2 x Ballistix DIMM 16 GB DDR4-2666, X470 Aorus Ultra Gaming, Radeon R9 380 4GB, Win10

Laptop: T420, W7 SP1, i5-2520M 4GB, SSD, HD Graphics 3000

VEGAS Pro 14-17, Movie Studio 12 Platinum, Vegasaur, HitfilmPro

rraud wrote on 8/15/2019, 12:51 PM

"if you have a sound card installed but always works on pc's using onboard Realtek sound."

Yes,"Stereo Mix" must be selected in the Realtek "Sound> Recording" settings in the PC'. Not all PCs, even with Realtek audio have this setting. All four of my old and new Dell PCs have this setting, but a Toshiba I used for a while did not,

annie-y wrote on 9/5/2019, 12:56 AM

There are so many tools can record internal and system audios. For this purpose' I'm using Audio Capture, which comes with a MM Audio Device that can not only record audio from internal and system audios but also save all recording audios as MP3, FLAC, WAV, AAC, M4A and M4B without touching the original audio files.

Besides, I can use it to cut and slipt audio files into small audio clips, which is the feature I like better.

harry-worth wrote on 9/5/2019, 2:49 AM

Windows 7 and 10 ...To get Stereo Mix with Realtex you have to download their driver from the Realtex WEB site.( MS have removed it from their drivers  )  Once the New drivers are installed, in Control Panel click the Sound ICON which opens up to show the devices.  Click the TOP tab - Recording  -- and then in the box that Opens you will see what you can record from.... If Stereo Mix does not show, do a Right Mouse click in an Open area on the box that has opened and another selection will open..Tick Both of the Boxes ( Show disabled devices  and  Show Disconnected Devices ) . Stereo Mix should then appear...