How to convert MP4 to AC3? Try the Audio Transcoder!

Key features of the best MP4-to-AC3 Converter:

Lightning-fast conversion (multi-core optimized encoders to speed up conversions on modern PCs.)
Batch mode for multiple files conversion task, Audio Transcoder can convert thousands of MP4 files at once.
Supports most widely used popular input and output formats.
Supports drag & drop.
Full Unicode support for tags and file names.
Integrated CD ripper with CDDB/freedb title database support.
Supports conversion without any temporary files it brings you high converting speed and saves hard disk resource.
Easy to learn and use, still offers expert options when you need them.
Creates output folders according to source files directory tree automatically.
It can add ID3 tag such as title, artist, album, year, genre, and comment to target file when converting files to MP3/WMA/WAV/APE/AIFF/M4A/M4B.
Fairly intuitive to use with its Windows Explorer-Style user interface.

Do you have some .mp4 files that you want to convert to AC3 so you can listen to them on your phone? Fortunately for you, we’ve put together a simple guide for converting MP4 into AC3. Audio Transcoder offers you an easy and fast way to convert any audio files to AC3 with high quality. It is an advanced Music Converter and CD Ripper with support of various popular media formats and encoders.

Free download and follow the instructions below

Steps on how to convert MP4 to AC3:

1. Add the media files to convert.

The first step is to select media files to convert. Run Audio Transcoder and use Folder Explorer to browse files you want to convert. Then select a file in the File List, drag it to the Drop Zone and drop it there. Optionally, Audio Converter allows you to edit tags of any selected file in Drop Zone.

Once files are selected, the next step is to select the output settings in Converter.

2. Select the output settings.

The second step is to select an output settings. To begin, select a folder for output and choose an action to be executed if an output file already exists (create a new file, overwrite or skip existing file).

Also you can set Media Converter to delete source file after conversion and preserve original folder structure, when doing batch conversion. Finally, you should select the output format and sound quality. In AC3 dialog box, choose format settings for the final tracks. Depending on quality you need, select bitrate, sample rate and the number of channels. You will probably lose some audio content if you choose mono option. You can choose what sample rate you want to use. 44.1 kHz (or 44100 Hz) is a sample rate used by music CDs. Less than that and you'll start to hear the loss in quality. You can choose a bit rate you want to use.

Once output settings are customized, you can go to the final step - transcoding.

3. Start to convert any audio files to .ac3

Click Convert button to start to transcode music into any audio format you desired. A conversion dialog will appear to show the progress of data conversion. If you want to stop process, please click Stop button. After conversion, you can click an Output Folder button to get transcoded files and transfer to your iPod, iPad, iPhone, media player or hard driver.

During the turning music into ac3, you can change priority of the process or set an automatic event to be executed when the conversion is over. After the conversion has finished, you can find your converted files in the output folder you specified.

People often search for "mp4 ac3 converter online" or "how to convert mp4 to ac3 online" without realizing that uncompressed audio files are large in size and by the time you upload, convert and download files you are better off downloading Audio Transcoder on your PC and perform convention locally = 0 second waiting for uploading and downloading. With our Audio Converter you can easily rip your CDs to AC3, MP4 or AC3 files for use with your hardware player or transcode files that do not play with other software. You can even transcode whole music libraries retaining the folder and the filename structure. The integrated CD ripper supports CDDB/freedb online CD database. It will automatically query song information and write it to ID3v2 or other title information tags. Have any questions regarding Audio Converter? See below Frequently Asked Questions.

With MP4 AC3 Converter you can convert any media tracks for all iOS devices and play audio on your iPod, iPhone or iPad.

Useful How-to Guides:

Software System Requirements:

Minimum System Requirements
- Microsoft Windows XP (32-bit and 64-bit)
- 1.0 GHz or faster processor
- 512 MB RAM
- 10 MB free hard drive space
Recommended System Requirements
- Microsoft Windows 7/8/8.1/10 (32-bit and 64-bit)
- Pentium 4 or faster multi-core processor
- 1 GB RAM
- 10 MB free hard drive space

Frequently Asked Questions

We strongly recommend that you first find answers to your questions here before try to contact us.

Q: What is MP4 ?

A: MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet. The only official filename extension for MPEG-4 Part 14 files is .mp4, but many have other extensions, most commonly .m4a and .m4p. M4A (audio only) is often compressed using AAC encoding (lossy), but can also be in Apple Lossless format. M4P is a protected format which employs DRM technology to restrict copying. MPEG-4 Part 14 (formally ISO/IEC 14496-14:2003) is a standard specified as a part of MPEG-4. While the only official filename extension defined by the standard is .mp4, various filename extensions are commonly used to indicate intended content: MPEG-4 files with audio and video generally use the standard .mp4 extension.
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Q: What is AC3 ?

A: AC3 is a file extension for surround sound audio files used on DVDs format. AC3, the abbreviation of Audio Coding, is the synonym of Dolby Digital audio codec. Dolby Digital (code-named AC3) is a compressed, lossy surround sound format that boomed with the rise in popularity of DVD in the late 1990s and early 2000s. The AC3 file format was created by Dolby Labs for use in a Dolby Digital audio on DVD, Blu-ray and other digital video formats. AC3 stands for Audio Coding 3. Except for Dolby TrueHD, the audio compression is lossy. And Dolby Digital is the common version containing up to six discrete channels of sound. AC3 increases fidelity over its previous surround sound standard, Pro-logic, with independent tracks for each of the 6 speakers, a 16bit sampling at 48khz rate compressed by 10-12 times, making for a total bit rate of 384kbps.
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