Ella Walter
OBS Studio is a software commonly used for live streaming and video recording. One of its features is the ability to control the stereo pan of the audio source. This allows users to adjust the volumes of the left and right channels separately, creating a balanced stereo audio input. While OBS has been known to have issues with panning mono sources, there are workarounds and plugins available to address this limitation. This includes physically separating the audio input and using a stereo input capture card or utilising third-party plugins.
| Characteristics | Values |
|---|---|
| OBS audio panning | Not implemented as of 2018 |
| Audio Pan Filter plugin | Allows control of stereo pan of audio source, adjust volumes of left and right channels separately |
| Mono input | "Pan" slider greyed out |
| Stereo input | "Pan" slider available |
| Apple OS | Does not capture stereo inputs |
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What You'll Learn
Adjusting the volume of left and right channels separately
One such plugin is the Audio Pan Filter for OBS Studio, which can be installed by following these steps:
- Ensure that libobsConfig.cmake is found by cmake.
- Run the following commands:
- Git clone https://github.com/norihiro/obs-audio-pan-filter
- Cd obs-audio-pan-filter
- Mkdir build && cd build cmake
- -DCMAKE_INSTALL_PREFIX=/usr
- -DCMAKE_INSTALL_LIBDIR=/usr/lib
- Make -j2 sudo make install
Note that you may need to adjust CMAKE_INSTALL_LIBDIR for your system.
Once the plugin is installed, you can adjust the volume of the left and right channels separately by:
- Opening a filter window for your audio source by clicking the gear button on the audio mixer or right-clicking the source.
- Adjusting the volume and pan for each channel as desired.
This plugin works with stereo sources only and allows you to control the stereo pan of each channel, providing more flexibility in mixing audio within OBS.
It is worth noting that some users have reported issues with the left and right speaker panning options being greyed out in the Advanced Audio Options of OBS Studio. This may be due to hardware limitations or require specific modifications or additional cables and adapters to function properly.
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Swapping left and right channels
To swap the left and right channels in OBS, you can adjust the stereo pan for each channel. This can be done by opening a filter window for your audio source by clicking the gear button on the audio mixer or right-clicking the source.
From there, you can adjust the volumes of the left and right channels separately and fix the pan for each channel. For instance, to swap the channels, set both the right and left channels to the centre and invert only the right channel.
If you are using a 3.5mm TRS, you can physically separate it into RCA L/R and then plug the left into a microphone port and the right into a different microphone port. Ensure that the left mono sound is panned to the left and the right mono sound is panned to the right.
Additionally, you can try converting your audio to mono, which will eliminate the left and right channels altogether.
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Balanced input to a stereo audio input
To adjust stereo pan in OBS, you can use a simple plugin that allows you to control the stereo pan of the audio source. This plugin lets you adjust the volumes of the left and right channels separately.
Now, onto the topic of "Balanced input to a stereo audio input."
Balanced audio signals are often confused with left/right stereo balance, where audio is split into left and right channels. However, they are distinct concepts. Balanced audio connections refer to the use of specific cables and connectors, such as XLR or TRS phone connectors, to reduce noise and improve audio quality. These cables can carry either balanced signals or unbalanced stereo signals (left and right channels).
When dealing with balanced audio, it's important to understand the difference between balanced and unbalanced cables. Balanced cables, such as XLR and TRS cables, are typically used in professional audio setups to minimise noise interference. They are designed to carry one channel per cable, so for stereo audio, you would need two cables. Unbalanced cables, on the other hand, can carry stereo audio (both left and right channels) on a single cable but are more susceptible to noise and distortion, especially over longer distances.
To achieve balanced input to a stereo audio input, you can use techniques such as employing a differential amplifier or using a transformer instead of an active input stage. Additionally, you can physically separate the 3.5mm TRS into RCA L/R and plug the left and right channels into separate microphone ports. This ensures that the left mono sound is panned to the left, and the right mono sound is panned to the right.
It's worth noting that some devices may have a "floating" balanced output with high impedance to ground. In such cases, care must be taken to ensure that the impedance to ground is equal on both sides of the output.
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Using a stereo audio interface
To adjust the stereo pan in OBS using a stereo audio interface, you first need to set up your audio interface with OBS.
Here's a step-by-step guide:
- Download and install the compatible version of OBS software for your system from the OBS website.
- Open the OBS application.
- Connect your audio interface to your computer.
- Navigate to the "Audio Mixer" in OBS, then click on "Mic/Aux".
- Click on the Settings button (gear cog symbol) and select "Properties".
- In the Properties window, click on the dropdown menu next to "Device" and select your audio interface. For example, if you're using a Scarlett USB Interface, select "Focusrite USB".
- Exit the Properties window and navigate to the "Advanced Audio Properties" tab from the Settings menu.
- Ensure you have the "Mono" setting ticked in the advanced audio properties. This will ensure that your audience hears audio on both sides of their headphones or speakers.
- From the "Sources" menu, click the "+" symbol to add a new source.
- Add your incoming audio from your audio interface to the Sources so that your audience can hear you. Select "Audio Input Capture" from the Source menu, then select "Add Existing" and choose the Mic/Aux channel.
Once you've set up your audio interface with OBS, you can adjust the stereo pan for each channel. If you're using a vocal microphone and an instrument, you can set the vocal channel to the center and the instrument channel slightly to the left or right. You can also adjust the volume for each channel as needed.
Additionally, if you're using a mini stereo jack with a DJ controller, you may need to monitor the levels in OBS and adjust the volume accordingly.
If you're using a Focusrite 2i2 3rd Generation audio interface, you can run a stereo input to #1 or separate mono inputs to #1 and #2 for individual balancing in OBS.
By following these steps, you can set up your stereo audio interface with OBS and adjust the stereo pan for each channel to achieve the desired audio mix.
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Capturing stereo inputs
Firstly, ensure that your audio interface is correctly configured in OBS. Go to Settings > Audio and select your audio interface as the Device. This will allow OBS to receive audio input from your interface.
Next, you need to add an Audio Input Capture source. Go to the Sources menu, click the '+' symbol, and select Audio Input Capture. Name your source and click 'OK'. Now, you should see your Audio Input Capture in the Sources list.
Right-click on your new Audio Input Capture source and select Properties. Here, you can configure the audio input settings. Ensure that the "Mono" setting is ticked in the Advanced Audio Properties. This will provide mono audio to your audience, ensuring they hear the audio on both sides of their headphones or speakers.
If you are using a microphone and want to separate the audio channels, you can adjust the stereo pan for each channel. Click the gear button on the audio mixer or right-click the source to open the filter window. Here, you can adjust the volumes of the left and right channels separately and pan them accordingly.
Additionally, if you are using a 3.5mm TRS connection and experiencing issues with stereo input on Apple devices, there is a workaround. You can physically separate the 3.5mm TRS into RCA L/R and plug the left into one microphone port and the right into a different microphone port. Ensure that the left mono sound is panned left and the right mono sound is panned right.
By following these steps, you should be able to capture and configure stereo inputs in OBS, allowing for separate channel adjustments and proper audio delivery to your audience.
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Frequently asked questions
You can adjust the stereo pan in OBS Studio by using a plugin. This will allow you to adjust the volumes of the left and right channels separately.
You will need to make sure that libobsConfig.cmake is found by cmake. Then, run the following commands:
- git clone https://github.com/norihiro/obs-audio-pan-filter
- cd obs-audio-pan-filter
- mkdir build && cd build
- cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=/usr/lib
- make -j2 sudo make install
Yes, but you will need to convert the mono input into a stereo input first. You can do this by physically separating the 3.5mm TRS into RCA L/R, then plugging the left into a microphone port and the right into a different microphone port.
To convert a mono input into a stereo input, you can use a stereo input capture card. Alternatively, you can use a plugin, but you will need to adjust the CMAKE_INSTALL_LIBDIR for your system.
