ตัวแปลงไฟล์ออนไลน์ฟรี SPX เป็น W64

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.

Sonic Foundry’s 64-bit RIFF/WAV format.