Is File ConverterX free to use?

Yes, File ConverterX offers a free trial, and you can convert a limited number of files for free. However, for bulk conversions, you may need to purchase a subscription.

Will converting AU to SPX affect the audio quality?

No, File ConverterX ensures that the audio quality remains intact during the conversion process. In fact, SPX is a higher-quality format than AU, so you may even notice an improvement in quality.

.au

.spx

Convert AU to Speex

Convert AU (.au) files to Speex (.spx) format. Transform your AU files to SPX quickly and easily with File ConverterX — completely free.

Drop your .au file here

or click to browse — converts to .spx

.AU.SPX

About AU to Speex Conversion

Converting AU to SPX is a breeze with File ConverterX. This powerful tool allows you to transform your AU files into the Speex format quickly and securely on your own server. No more worrying about file compatibility or quality loss, as File ConverterX ensures a seamless conversion process.

AU files, also known as Unix Audio files, are an older format that was widely used in the past. However, with the advent of newer formats like Speex, many users are looking to convert their AU files to take advantage of the better compression and quality offered by SPX.

Speex, on the other hand, is a lossy audio compression format that is designed specifically for speech and audio. It offers high-quality audio at low bitrates, making it an ideal choice for applications where file size is a concern.

By converting your AU files to SPX, you can enjoy the benefits of smaller file sizes, improved quality, and increased compatibility with modern devices and software.

How it works

Upload your file

Drag and drop or browse to select the file you want to convert.

Choose output format

Select the target format from the dropdown menu.

Download the result

Your converted file is ready to download in seconds.

About AU

AU (Audio) is a simple audio format developed by Sun Microsystems. Used primarily in Unix/Linux systems and Java applications.

Learn more →

About Speex

Speex is an open-source audio codec designed specifically for speech. Offers good quality at very low bitrates.

Learn more →

Frequently Asked Questions

File ConverterX is the best way to convert AU to SPX, as it offers a fast, secure, and high-quality conversion process.

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