SPX to M4R Converter
Convert your spx files to m4r online & free
How to convert spx to m4r
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to m4r"
Choose m4r or any other format you need as a result (more than 200 formats supported)
Download your m4r
Let the file convert and you can download your m4r file right afterwards
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.
MPEG 4 Ringtones Audio
M4R - is a digital multimedia container format used to store audio in mono channel mode. This format is suitable for store ringtones and it is widely used by Apple iPhone for its ringtones. Needless to say that M4R and M4A formats shares many similar features.