5 methods to combine audio files in Windows 10

Matthew Adams
by Matthew Adams
Windows & Software Expert
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  • Combining audio files is probably the first step towards remixing music.
  • It is a basic task that many audio editors can easily handle.
  • This tutorial is part of our much larger hub dedicated to audio editors, so check that out as well.
  • You can find even more articles like this one in our dedicated How-To page.
Combine Audio Files

This is how you can combine audio files

  1. Use a third-party tool to combine audio files
  2. Combine audio files with the command prompt
  3. Combine audio files with Audio Mix
  4. Merge MP3s together with MP3 Merger
  5. Merge music files with Audio Joiner
  6. Combine audio files with Audacity

Do you have lots of separate music files saved in a Windows 10 folder? If so, it would be better to merge some of those files together so that you can play through multiple music tracks included within a single file.

Then you won’t need to manually select to play each song file separately within your media player. This is how you can merge your favorite music into a single file in Windows 10.

How do I combine audio files?

1. Use a third-party tool to combine audio files

The most obvious and simplest way to combine multiple audio files is through the use of dedicated software that can do just that. These usually have a very straight-forward interface, and will get the job done faster than you ever could manually.

That being said, one great tool that you should take into consideration is Adobe Audition, a digital audio workstation that is a world-standard in audio editing.

How do I combine audio files with Adobe Audition?

  1. Download the free version of Adobe Audition
  2. Install and launch Adobe Audition
  3. Load all the songs that you want to combine together
  4. Form here, there are two methods of combining them:
    • Place the files one after another on a single track, and mix that down
    • Use Waveform view and go to Open>Append.
      • By doing this, each track will be put at the end of the previous one, and all you have to do then is save the resultant file.

2. Combine audio files with the Command Prompt

  • You can utilize the Command Prompt to combine separate audio files.
    • To merge music with the Prompt, right-click the Start button to open the Win + X menu.
  • Select Command Prompt (Admin) to open the window shown below.

  • Open the folder that includes the MP3 files you need to merge in the Command Prompt.
    • You can do that by entering cd in the Prompt followed by the folder path.

  • Enter this command in the Prompt: copy /b audio file1.mp3 + audio file2.mp3 audio file3.mp3.
    • Of course, you’ll need to change the file names there to match your actual audio files.
  • Then press the Enter key.
    • That will combine the two MP3s in the copy /b command into one new output file.

3. Combine audio files with Audio Mix

Audio Mix is a Windows tool designed for all digital music lovers who are looking for a quick and easy way to combine multiple songs.

Combine audio file with Audio Mix software

Thanks to Audio Mix you can combine, split and/or overlay audio tracks with just one click. The combination of the songs is precise and professional thanks to the crossfade effect. The crossfade is a feature that enables you to join songs so that they flow one into another seamlessly.

Audio Mix is not only a merger audio software. It has a lot of other interesting features like:

  • Audio Converter: it converts mp3 files to ogg, wav, mp4, m4a and aac format
  • Audio Splitter: split songs or cut unwanted parts of the audio files.
  • Audio Editor: edit key, volume and speed of your audio files
  • Audio Overlapping: overlay two or more audio tracks (eg. voice and music)
  • Audio Equalizer: you can improve the quality of your songs by modifying the audio equalizer (bass and treble)
  • MP3 Vocal Remover: Removes the singer’s voice on the music
  • Video to Audio Converter: extract audio files from video (avi, mp4, wmv, mov, etc…)

Check now Audio Mix


4. Merge MP3s together with MP3 Merger

MP3 Merger is freeware software that merges one, or more, MP3 files. It is a straightforward utility for merging sound files together that also enables users to edit track data and set up CUE sheets for MP3s. You can combine music files together with MP3 Merger as follows.

  • Click Download Now on this webpage to save MP3 Merger to a folder.
  • Then you can open MP3 Merger from the folder you saved it to.

  • Click Add Files to open the Select files to merge window shown directly below.

  • Then select two, or more, files to join by holding the Ctrl key; and press the Open button.
  • You can adjust the default directory for the output file by clicking the button beside the Output filename text box.
  • To set up a CUE sheet for the output file, click Settings and select the Create CUE sheet for the output file option

  • Then click the Merge files button.
  • A Warning dialog box then opens. Press the Yes button on that dialog box window to confirm.

  • After you’ve merged the files together, close MP3 Joiner and open a media player.
  • Select to play the new output file that includes the two MP3s you merged together.

If your audio files aren’t MP3s, your best bet is to convert them to that format and then merge them together with MP3 Merger. You can convert numerous audio files to MP3s at this webpage.

Press the Choose files button there to select source files, and then click Start conversion to convert them. Alternatively, check out the audio conversion software in this post.


5. Merge music files with Audio Joiner

Alternatively, you can merge music with the Audio Joiner web app. That app merges MP3, M4A and WAV files together. This is how you can combine sound files with Audio Joiner.

  • Open the Audio Joiner web app in your browser.
  • Click the Add tracks button to select the music files to merge.
    • The web app then displays the selected tracks as in the snapshot directly below.

  • You can adjust the playback order of the tracks by clicking the up or down arrows.
  • The blue sliders on the tracks configures the playback interval when one tracks stops and the other starts playing.
    • That enables you to cut out some of a song if you drag the blue slider away from the far right of a tack.
  • Audio Joiner also includes Crossfade and Fade-out transition effect buttons on the right of tracks.
    • You can click those buttons to toggle their effects off or on.

  • Click the Join button to merge the selected tracks together. Note that it does take a while for the app to merge the files together.
  • Click Download to save the output audio file to a folder.

6. Combine audio files with Audacity

Audacity is among the best sound editor software for Windows 10. You can also merge separate audio files with Audacity by overlapping two alternative music tracks. Follow the steps below to combine music tracks with that software.

  • Click Download Audacity on this webpage, select Audacity for Windows and click Audacity 2.3.0 Installer to save the software’s setup wizard to a folder.
    • Then you can add the software to Windows with the installer.
  • Open the Audacity software window.
  • Open the first audio file by clicking File > Open.
  • Click Import Audio on the Project menu to open the second audio file in Audacity.
    • Now you should see two waveforms for the selected audio files in Audacity.
  • Press the Time Shift Tool button (with double arrows on it) to open the Time Shift Tool.
  • Next, place the Time Shift Tool cursor at the beginning (far left) of the second audio track you want the file to play.
  • Click and drag the Time Shift Tool cursor to the right until it gets to the end of the first track’s waveform.
    • Thus, the second track’s waveform should start where the first track’s waveform finishes.
  • Click File and select Export as WAV to export the merged music file.

So you can combine audio files with the Command Prompt, Audacity, MP3 Merger software and Audio Joiner web app.

Merge MP3, MP3 Toolkit and Free MP3 Cutter Joiner are three other software tools you can join sound files with. By merging audio files, you can bring your music collection together.


FAQ: Learn more about combining audio files

  • How do I combine audio files on PC?

The fastest way to combine multiple audio files is to simply use a professional audio editor.

  • Can I combine multiple audio files for free?

Yes, Windows comes with several software solutions that allow you to combine multiple audio files into one.

  • Is combining audio files the same as remixing?

No, remixing involves adding sound effects and sometimes overlapping audio files together, not just combining them.


Editor’s Note: This post was originally published in November 2018 and has been since revamped and updated in April 2020 for freshness, accuracy, and comprehensiveness.

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