The Best AAC to MP3
Converter

I often need to convert the collections of many audio files in AAC format to a more common MP3 format to make the files compatible with all the devices.

For example, my car’s audio system can only play MP3 tracks, so I decided to convert them to a reliable tool to be able to enjoy them on the go.

This is why I decided to try multiple tools and find the best ones available on the market today.

After a long testing period, I’ve created a list of the most functional AAC to MP3 converters selected based on the following criteria: conversion speed, audio quality, ease of use, and such extra options as editing toolkit or cloud storage.

To check its performance, I used the software to convert many AAC files like music tracks and voice recordings. This task was quite simple, as Zamzar can handle more than 1,200 file formats. Besides, it also functions as a reliable video converter.

The best about Zamzar is its email notification feature, which came in handy when converting large files. I did not need to keep an eye on the process, as the program notified me about the completion. In addition, it also allows adjusting the audio bitrate and file size, so I could easily customize the output files.

However, a free version of Zamzar only allows processing a 50MB file size, which is too small for most users. When testing the program I had to split larger files before conversion to meet this limit.

To try out the functionality of Aiseesoft Video Converter, I decided to process a variety of ACC files like music tracks and audiobooks, to MP3 format. The speed of the conversion is outstanding, handling all types of media files hassle-free. Besides, the software preserves the high quality of the original file.

Batch processing mode is the highlight of this program, which allows converting the whole audiobook collection in one go. The file converter software also lets customize the parameters of the converted files like bitrate and sample rate, which was especially useful for optimizing audio files.

Moreover, Aiseesoft offers editing features for trimming the converted files and adjusting the volume levels, eliminating the need to use a separate audio editing software. However, it is quite expensive. Although the high cost is justified by a vast selection of advanced features, it could be a downside for those looking for a budget-friendly and simple converter.

The conversion process was smooth and intuitive, and all the resulting files were of top quality. Convertio integrates with different cloud storage services like Google Drive and Dropbox, which allows importing and exporting files with ease.

Unfortunately, the speed of the conversion was slower if compared to Movavi or UniConverter. I spent much time processing larger files, but the ability of the program to convert audio files right from cloud storage added much convenience to my workflow.

Like many other similar tools, Convertio has multiple customization options for changing audio codec and bitrate. Thus I could adjust the quality of the output file and its size based on my requirements. The program is compatible with many file formats, so I even could use Convertio as a WAV to MP3 converter.

Audacity is a great open-source audio editor that I always use when working with audio files. However, I discovered its AAC to MP3 conversion function only recently. Unlike other tools, Audacity is more complicated, but it provides a great level of control over the audio conversion process. The quality of the output file was also on top.

A rich editing toolkit is a huge advantage of Audacity. It allows fine-tuning tracks with different effects, correcting the audio levels, and even removing noise before downloading the resulting MP3 file. This level of control allows Audacity to stand out among other similar tools like Convertio or Zamzar.

However, the UI of the converter is quite complex and can confuse newcomers. The program required much time to be mastered, but the variety of advanced options it offers is really amazing and is worth investing the time. This option is ideal for those looking for a powerful audio editing instrument, that is also capable of conversion.

Thanks to the hardware acceleration feature, this AAC to MP3 converter can handle virtually any conversion in the shortest possible time. I experienced the difference when processing large files or using its batch mode, so VideoProc is probably the speediest converter I’ve ever tried. But you should take into account that it demands many system resources to function properly. Therefore, it is not suitable for older computers and less powerful hardware.

VideoProc is not just a converter, but also a great audio editing solution. I used the program to reduce noise to polish the resulting audio, and the output was impeccable.

I was also surprised to find out that VideoProc is capable of 4K video conversions, so this program is rather a comprehensive media processing tool, than just a converter. Although the software is paid, the variety of advanced features it offers is worth such an investment.

I evaluated the performance of this tool by converting a playlist of AAC files to MP3 and I was pleased with the simplicity and smoothness of the whole process. The selection of additional features impressed me. Using them, I could easily change the bitrate, sample rate, and audio channels, getting a great level of control over the converted files.

Normalizing the volume of tracks was a no-brainer as well. Thanks to this feature, FreeConvert excels other similar programs. Being able to process multiple files at once, FreeConvert can handle the conversion of many tracks but its speed is much lower than the one offered by UniConverter or Zamzar.

The program is compatible with virtually any format and is also among the most functional video and image converters. A free version only allows processing small files, and to convert larger tracks, you need to purchase a subscription.

I took advantage of VEED for converting AAC files to MP3 and was pleased with its online video editing capabilities. It supports all possible audio formats and offers a basic editing toolkit, which allows adding simple fades or background music to my audio tracks.