Free Online RM to SPX Converter

The RM extension identifies files commonly known as RealMedia. It carries video in a stream or multimedia container that may also include audio, subtitles, timing, and metadata. Compatible players and editors can open, process, and convert the file when the required codecs are available.

The SPX extension identifies files commonly known as Speex. It is designed for speech, voice recording, communication, or related audio exchange. Players and conversion tools can decode the sound when the expected codec and stream parameters are available.