How to Merge Audio Files into One without Losing Quality on a Computer?

Copper Contributor

Is there any straightforward way to merge audio files into a single file? I've got several audio tracks in different formats (MP3, WAV, FLAC, etc.), and I want to combine them without losing any quality. I've tried a few online tools, but they either limit the file size or reduce the audio quality.


Could anyone recommend a reliable method or software that can merge audio files efficiently? Ideally, something that's easy to use and supports batch processing would be perfect. 


Thank you

11 Replies
Merging audio files without losing quality is achievable with Audacity or FFmpeg. Both methods are straightforward, and you can achieve professional results without breaking a sweat. Give it a try, and enjoy your merged audio masterpiece!

@Yacomer123 Go and try Adobe Audition. This is a a professional-grade audio editing software that's part of the Adobe Creative Cloud suite. Renowned for its comprehensive set of features, Adobe Audition provides an intuitive platform for merging multiple audio files seamlessly.


The software’s multi-track editing capability allows users to effortlessly drag and drop audio clips, align them on a timeline, and merge them with precision. This makes it an ideal choice for podcasters, musicians, and audio engineers looking to create cohesive audio tracks from multiple sources.

@Yacomer123 I am using Hindenburg Journalist ($30),  a powerful audio editing software specifically designed for journalists, podcasters, and audio producers who need efficient and high-quality tools for their work.


One of its standout features is the ability to merge multiple audio files without losing quality so the final product maintains the highest audio quality. With an intuitive interface, Hindenburg Journalist allows users to drag and drop audio files, arrange them in the desired order, and merge them with just a few clicks. This ease of use, combined with its robust functionality, makes it an ideal choice for both beginners and experienced audio editors.

I've tried several online tools, but most of them had limitations or downsides. Some would reduce the quality, while others would limit the file size. Frustrating.
Merging audio files doesn't have to be a painful process! With mkvtoolnix or WavePad, you can easily combine your files without sacrificing quality.

If you're looking for a straightforward way to merge audio files into one without losing quality, I recommend using Audacity or commercial software like Adobe Audition or Ableton Live. If you're comfortable with command-line interfaces, FFmpeg or SoX can be great options as well.

Yes, I know you mentioned you've tried online tools to merge audio files. Unfortunately, most online audio mergers compress the files or limit the output size. However, some popular options include:


  • Online Audio Converter (up to 50MB file size limit)
  • AudioJoiner (supports multiple formats but has ads and limited features)
  • MergeMP3 (simple and easy to use but has a 10-minute file length limit)
Using an online audio merger service can be convenient, but there are several reasons why you might prefer using dedicated software like AudioKies or other desktop applications. Desktop software often provides better control over the audio quality. Online services may compress audio files to reduce their size. Desktop applications typically allow you to merge multiple audio files into one and maintain the original quality of the audio files.

Many online services impose file size limits, which can be restrictive if you're working with large audio files or need to merge multiple files at once. Desktop software generally does not have these limitations, making it more suitable for larger projects.


It's true that combining multiple audio files into one in different formats can be a bit tricky, especially if you want to keep the original sound quality. I've had similar problems before and tried some online tools, but they often have file size limitations or degraded sound quality.


For your needs, I recommend Audacity or Adobe Audition, both of which are very powerful, support a wide range of audio formats, and can merge audio files without loss.


Audacity is a free and open source audio editing software that supports batch processing and is ideal for beginners. It makes it easy to import audio files in different formats, put them in order and finally export them as a single audio file. It also has many other audio processing features that are very comprehensive.


Adobe Audition is a more professional audio processing software that offers more advanced editing features. Although it is a paid program, it is definitely worth the investment if you need to do more sophisticated audio editing.  Hope it's helpful to you!

@Yacomer123 Merging audio files using FFmpeg is a powerful and efficient method, suitable for users who are comfortable with command-line interfaces. Here’s a step-by-step guide to merging audio files with FFmpeg:


Step 1: Install FFFFmpeg on your computer.

Step 2: Open a text editor and list all the audio files you want to merge, each on a new line.

Step 3: Navigate to the directory containing your audio files and the filelist.txt file.

Step 4: Use the following FFmpeg command to merge the audio files listed in filelist.txt.

ffmpeg -f concat -safe 0 -i filelist.txt -c copy output.mp3


After the command executes, you should have a new file named output.mp3 in the same directory, which contains the merged audio files. You can also merge mp4, wav, m4a, ogg, flac and other popular audio files.




I personally would not recommend using Audacity to combine multiple audio files into one and while Audacity is a popular choice, it may not be the best choice. Audacity can be a bit clunky and inefficient when dealing with large or numerous audio files, especially since its interface and features may not be intuitive and fast enough for such a task.


Additionally, Audacity does not provide a real-time preview when combining multiple audio tracks, which makes fine-tuning and synchronizing multiple tracks difficult. Also, its performance may suffer when working on larger projects, affecting overall productivity.


Recommendation: If your main need is to frequently merge multiple audio files, consider using Adobe Audition or other professional audio editing software!