However, it is not necessary for local recording and will usually waste a lot of disk space, so it's preferable to use CQP or VBR instead.ĬQP (Constant Quantization Parameter) uses a flat compression ratio without regard to bit rates.

The video encoders available in OBS Studio offer all of the following rate control methods: CBR, VBR and CQP (or CRF in the case with x264).įor livestreaming over the internet, you should always be using CBR as your rate control mode, as it allows for a stable connection with consistent latency. Or, if they don't, you can manually extract them into separate files with MKVToolNix GUI or mkvextract. Most video editors should import all the tracks automatically. In VLC, go to the Audio menu > Audio track, and click on a track. In Media Player Classic-based players, go to the Play menu > Audio Track, and click on a track. In mpv, left-click or right-click on the audio icon in the on-screen controls, or press # (Shift+3 on US English keyboard layouts) Most video players will let you choose only one track to play during playback: Since tracks 5 and 6 were not checked in Settings > Output > Recording, their checkboxes will not affect anything. In this configuration, game audio will go to tracks 1 and 3, microphone will go to tracks 1 and 2, and speakers' audio will go to track 4. On the Audio tab, tracks can be renamed for convenience, and their bit rates can be changed. That's 4 tracks, so 4 checkboxes need to be ticked. Go to Settings > Output > Recording, choose your preferred container format (MKV is highly recommended, as it is crash-safe, and can be remuxed to MP4 for video editors later), then choose how many tracks to record. How to calculate bit rates and file sizes for VBR and CBR (Capturing per-application audio will be added to OBS Studio in the future currently, the win-capture-audio plugin can be installed for this.)ģ. Advanced output mode allows creating a file with multiple audio tracks - for example, you could livestream your game's audio and your microphone, and also record your system sounds, game audio, and microphone into 3 separate tracks for video editing.

Mac os 10.12 multiple audio outputs