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M4A to SPX

Online Convert M4A to SPX Use OnlineConvert online. Free fast! No registration is required.

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How to convert M4A to SPX?

Online M4A to SPX, you can put the M4A to SPX format on your computer, tablet or mobile phone without downloading any software!

Step 1

Upload M4A file

Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2

Select 'SPX'

Select output SPX or any other format as the conversion result (click the Convert button)
Step 3

Download your M4A file

After the conversion you can download your SPX file and upload it to Google Drive, Dropbox.

m4a : MPEG-4 Audio Layer

M4A is an audio file format that is very similar to MP4. It is a proprietary file format of Apple. iTunes store contains the audios as M4A format. It uses MPEG-4 codec to contain audio files. One of the basic differences between M4A and MP4 is M4A does not contain videos like MP4.

spx : Speex

An SPX file is a Speex audio file saved within an Ogg Vorbis container. Speex is an open source patent-free audio format designed for speech compression. It supports variable bitrate (VBR) encoding and several features not found in other audio codecs. Some examples include embedded encoding, intensity stereo encoding, and voice activity detection.
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