How to convert M4A to SPX? Try the Audio Transcoder!

Key features of the best M4A-to-SPX 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 M4A 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 MP2/WMA/OGG/WAV/APE/MP4/M4A/M4B.
Fairly intuitive to use with its Windows Explorer-Style user interface.

Do you have some .m4a files that you want to convert to SPX so you can listen to them on your phone? Fortunately for you, we’ve put together a simple guide for converting M4A into SPX. Our Audio Converter offers you an easy and fast way to convert any sound tracks to SPX 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 M4A to SPX:

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, M4A 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 files already exists (create a new file, overwrite or skip existing file).

Also you can set Media Converter to delete source files after conversion and preserve original folder structure, when doing batch conversion. Finally, you should select the output format and sound quality. In SPX 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 (128kbps is often used for SPXs on the internet).

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

3. Start to convert any audio files to .spx

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 spx, 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 "m4a spx converter online" or "how to convert m4a to spx 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 SPX, M4A or WMA files for use with your hardware player or transcode tracks 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 M4A SPX Converter you can convert any media files 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 M4A ?

A: M4A is a file extension for an audio file encoded with advanced audio coding (AAC) which is a lossy compression. M4A was generally intended as the successor to MP3, which had not been originally designed for audio only but was layer III in an MPEG 1 or 2 video files. M4A stands for MPEG 4 Audio.
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Q: What is SPX ?

A: Speex is an Open Source/Free Software patent-free audio compression format designed for speech. The Speex Project aims to lower the barrier of entry for voice applications by providing a free alternative to expensive proprietary speech codecs. Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs.
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