ตัวแปลงไฟล์ออนไลน์ฟรี CAVS เป็น SPX

CAVS is a set of coding/decoding standards developed by Workgroup of China in 2002. The technology is aimed to resolve problems of audio and video compression, namely original data and sources. This format is not widely supported on a PC, but is widely used for DVD-players and home theater systems in China.

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.