How to Combine Two Audio Sources Into One Headphone?

Norvan Martin

But what if you could combine the sound from two different audio sources into one headphone? This would give you the ability to listen to both audio streams simultaneously, without having to switch back and forth between them.

Let’s say, for example, you have a gaming console and when you play, you want to listen to audible podcasts from your computer as well. How can you combine the audio from both the gaming console and the computer into one set of headphones? Maybe you play the guitar and you want to combine the audio from the guitar and the songs you are playing to.

The easiest way to combine two audio sources into one headphone is to use a stereo mixer. You can get a cheap second-hand mixer from your local audio store or local classifieds.

Headphones with two audio sources allow the listener to switch between two different audio sources, such as a phone call and music.

This can be useful for people who need to stay connected to both their work and personal lives at the same time.

Here’s how to combine two audio outputs into one: 

There are a few different ways to set up headphones with two audio sources:

Option 1: Using a Mixer

One easy way to combine two audio sources into one headphone is to use a simple mixer. You can get cheap second-hand Behringer mixers from your local audio store or local classifieds.

You just need to ensure that the mixer offers two stereo channels (do not get a mono mixer!). A good example is the Rolls MX42 Stereo Mini Mixer available on amazon. 

A mixer allows you to control the sound levels of each audio source and also includes an output so that you can hear both audio sources at the same time.

All you need to do is plug in the headphone output of a maximum of two devices with a single headset. Going on the example from before, if you way to play a game on a console while listening to a podcast, you can plug the console and the computer into the mixer and have one headphone out. 

Option 2: Using A Headphone Splitter

A headphone splitter is a device that is designed to send a signal from a single audio source to multiple outputs (e.g multiple headphones). However, you can also use it to convert multiple audio sources into a single output. A good example is the Amazon Basics 5-Way Multi Headphone Splitter.

However, you need to be careful with this because power from one device can flow back into another and damage your devices. 

How to Combine Two Audio Sources Into One Headphone Using A Headphone Splitter

Ensure the devices you use are low-power devices or have some circuitry to prevent one from driving the other. All you need to do is to add some resistance between each source and the splitter. However, will cut the output volume and may not sound good.

For this top work, you also need additional 1/8″ cables and would use the volume controls on the individual items to “mix”.

Option 3: Using a Splitter Cable

One way is to use a splitter cable, which splits the signal into two separate cables. With these audio cables, a standard cellphone mic-earbud headset can be connected to separate audio-in and out jacks with only one port.

While these cables do allow you to connect two audio sources, combining them at the same time can be risky. You can however connect a small 10 to 30-ohm resistor in series to reduce the current if you intend to push maximum volume.

Option 4: Dual Headphone Jack

Dual headphone jacks are nifty devices. They have built-in two separate 3.5m ports that combine to only one output. Featured with Split audio systems, Handy for music or movies, Super sound quality, Stylish and compact, and Universal compatibility. 

Split Audio: You can listen to audio in 1 portable device from 2 stereo speakers or headphones with a 3.5mm male to 3.5mm female audio splitter.

Option 5: External USB Stereo Sound Adapter

An external audio interface is the cheapest option and is a good option If your computer does not have a built-in audio-in jack is not found in your computer. In that case, you need two of these adapters.

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  • Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack.
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In addition to the adapters, you will also need two ⅛” stereo TRS cables (aux cables) to the input jacks.

The thing is, however, with these adapters, you still need a free sound mixer software to mix up two audio sources together as well as monitor the output to headphones.

Option 6: Use a Headphone Jack Adapter

Another way is to use a headphone jack adapter, which converts a single headphone jack into two jacks.

Most headphones with two audio sources come with either a splitter cable or a headphone jack adapter.

If your headphones don’t come with one of these accessories, you can purchase them separately online or at your local electronics store.

Option 7: Use an Amplifier

You can also join two audio sources by using an amplifier. An amplifier will increase the sound level of both audio sources so that they are both audible at the same time.

This is a great option if you want to play both audio sources at the same volume.

An amplifier will amplify the signals from both tracks and merge them into one signal. This merged signal can then be sent to a single speaker or output device.

Option 8: Use Software

You can use software to combine two audio tracks into one. There are several different software options available, and most of them are free or very low-cost.

Some software options will allow you to cut and fade audio, while others will only let you combine two tracks.

Combining two audio tracks with software is very similar to the process of creating a mixed CD of songs from different albums. You can import or “rip” music from CDs, and then apply special effects like cross-fading and equalization.

Option 9: 2 Optical Inputs into 1

If you are using devices with optical outputs, then you can use a two-to-one optical converter. This device will allow you to connect two optical devices into one optical output.

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  • ✅【Digital Audio Splitter】Optical audio cable splitter allows you to connect one optical audio source and...
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With this device, you can connect one optical audio source to two audio signals. In addition, it supports 1 male input to 2 female outputs. 

Option 10: Do It Yourself

Now if you have good experience with electronics, you can create this circuitry yourself. This setup is relatively easy and involves some basic circuitry and some op-amps. You can also use transistors instead. 

To create an inverting mixer, all you need is to connect up a single opamp (like the 4556 or TLE2062 ) and some resistors. 

In addition, a symmetrical power supply is recommended, but it can be done with a single supply.


How to Combine Two Audio Inputs into One on Windows 10?

Before we even get into it, a cheap option is to run line-out from one computer to line-in on the other computer. This allows the computers to share the same headphones and will prevent any ‘driving’ issues.

Windows 10 has a built-in feature that allows you to combine two audio inputs into one. This can be helpful if you want to watch a movie or listen to music with someone else and don’t want to use two separate devices.

Here’s How To Do It:

1. Open the Windows 10 Sound settings by clicking on the Start button and typing “sound.”
2. Under the Playback tab, click on the “Combine” button next to the “Multiple displays” heading.
3. Select the input you want to use from the drop-down menu.
4. Click on the “Apply” button, then close the window.

Multi-Source Headphones (Multiple-input Headphones)

Multi-source headphones allow users to simultaneously listen to multiple audio sources, usually through two or more earpieces.

This allows people to listen to different audio sources at the same time, such as listening to music while talking on the phone.

Multi-source headphones can also be used in a work setting, where one person can listen to a meeting call while another person is working on a project.

Multi-Source Headphones Come in Two Main Types:

  • Wireless technology
  • Wired technology

Wireless multi-source headphones use Bluetooth or other wireless technologies to communicate with devices, whereas wired multi-source headphones connect directly to devices using a cable. Both types have their advantages and disadvantages.


Wireless multi-source headphones are typically more expensive than wired multi-source headphones, but they can also be more comfortable since they weigh less. They’re easy to use and provide good-quality sound.


However, the volume of wireless multi-source headphones is limited by interference from obstacles or other electronic equipment in the area. As well, their frequency response is typically not as wide as wired variants.


Wired multi-source headphones may be more reliable than wireless units since there are no problems with interference. They don’t have a battery that needs to be recharged constantly and they produce a higher-quality sound.

This is because their frequency response can go beyond 20kHz instead of being limited by Bluetooth technology. Wired models are also usually cheaper than wireless options.

How to Combine Audio from Two Computers?

There are a few ways to combine audio from two computers. One way is to use an audio mixer. Another way is to use software that allows you to merge the audio files together.

Option 1: Using an Audio Mixer

If you want to use an audio mixer, you will need two adapters- one for each computer. The adapters will allow you to connect the two computers together so that you can mix the audio files. You will also need an audio cable to connect the mixer to your speakers or headphones.

Option 2: Using Software

If you want to use software to merge the audio files, there are a few options available. One option is Audacity, which is free software that can be downloaded online.

Another option is GarageBand, which is part of the iLife suite of software that comes with new Mac computers.

How to Combine Two Audio Jacks into One?

There are a few ways that you can combine two audio jacks into one:

Option 1: Using a Y-cable

One way is to use a Y-cable. A Y-cable has three connectors: two for the audio jacks and one for the microphone jack. This type of cable splits the signal evenly between the two audio jacks.

Option 2: Using an Adapter

Another way to combine two audio jacks is to use an adapter. There are a variety of adapters available, such as a 3.5mm stereo adapter or a 6.3mm stereo adapter. These adapters allow you to connect two different types of audio cables.

Option 3: Using a Splitter

You can also use a splitter. A splitter takes one input and it into two outputs. This is useful when you want to take one input and share it between two sets of speakers.

How to Combine Two Audio Inputs into One Online?

There are a few ways to combine two audio inputs into one online. One way is to use an online mixer. Another way is to use an online audio editor.

Online Mixer

An online mixer is a web-based application that allows you to mix two or more audio tracks.

This can be useful for podcasting, remixing, and more. There are a variety of online mixers available, so be sure to do your research before choosing one.

Online Audio Editor

An online audio editor is another option for combining two audio tracks. This type of editor typically allows you to edit the individual tracks, as well as the overall mix.

Some editors also allow you to add effects and other modifications. Again be sure to do your research before choosing an editor.


Now that you know how to combine two audio sources into one headphone, go ahead and try it out. You may find that this is a great way to customize your audio experience, and it can be especially useful if you want to share music or watch a movie with someone else.

Just be sure to use headphones that have a separate volume control for each audio source, so you can adjust the levels independently.

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Norvan Martin is the founder of He is a professional Electronics Engineer and is passionate about home theater systems and AV electronics. BoomSpeaker was created as an online hub to share his knowledge and experiences as it relates to home theaters and home audio electronics. My email: [email protected]  Connect on Pinterest and Linkedin