This tool converts M4A to AC3 completely free and without any functional limitations. Since it is based on the browser API, the processing speed is the fastest because all files are processed locally on your device and are not uploaded to our server.
Batch Convert M4A to AC3 Online
With this SoConvert tool, you can convert multiple M4A files to AC3 directly in your browser for free. You can also adjust the audio Bitrate during conversion.
Click the Options button in the top-right corner to open the settings panel, where you can customize the output AC3 audio Bitrate.
Other Settings Explained:
Encoding Speed: Choose the encoding speed. Faster speeds result in larger file sizes.
Audio Bitrate: Recommended range is 8 – 320 Kbps.
Cut Audio: Trim the audio using a start and end time in HH:MM:SS format.
For example, setting 00:00:05 to 00:00:08 will cut a 3-second clip from the audio.
Before converting, you can choose a local folder to save the converted AC3 files. Once an M4A file is successfully converted, it will be automatically saved to your selected directory—no manual download required.
Save All: After all M4A files are converted, click “Save All” to export every AC3 file to your chosen folder in one go.
About M4A files
M4A (MPEG-4 Audio) is a high-quality audio format developed by Apple, based on the AAC (Advanced Audio Coding) standard. It offers better sound compression than MP3 while maintaining excellent audio quality, making it ideal for music and podcasts. M4A files are often used in iTunes and Apple devices, supporting lossy compression with smaller file sizes than MP3 at similar quality levels. Though less universal than MP3, it is widely supported on modern devices and media players.
About AC3 files
AC3 (Audio Coding 3), also known as Dolby Digital, is a multi-channel audio compression format developed by Dolby Laboratories. It efficiently reduces file size while maintaining high sound quality, supporting up to 6 channels (5.1 surround sound). AC3 is widely used in DVDs, Blu-rays, digital TV broadcasts, and home theaters. Though a lossy format, it delivers excellent audio performance for entertainment purposes, though not suitable for professional audio mastering due to its compression.
