AMR to SPX Converter
Convert your amr files to spx online & free
Adaptive Multi Rate
How to convert AMR to SPX
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to spx"
Choose spx or any other format you need as a result (more than 200 formats supported)
Download your spx
Let the file convert and you can download your spx file right afterwards