Convertspx
We've already converted 813,522,715 files with a total size of 6,574 TB.

SPX Converter

Free online audio converter that converts all audio or video to spx by streaming audio or video online. High quality, very fast.

Your account type only allows up to 4 files to be concurrently converted.

Please register to remove this restriction. We offer a variety of conversion options.
Save ¥783 over 1 years
Save ¥783 over 1 years
Save up to 70% on subscription discounts
Get a Online Converter with File Convert, upload max 1g and no ads upgrade after 1 years—all for just $16/month.
Save up to 70% on subscription discounts

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.
RegisterRegisterRegister
  • Register