compression, standard, algorithm, file format
A proposed variant of the MPEG video and audio compression algorithm and file format. MPEG-3 was intended as an extension of MPEG-2 to cater for HDTV but was eventually merged into MPEG-2.
Not to be confused with MP3 – MPEG-1 layer 3.
compression, standard, algorithm, file format A video compression standard planned for late 1998. MPEG-4 extends the earlier MPEG-1 and MPEG-2 algorithms with synthesis of speech and video, fractal compression, computer visualisation and artificial intelligence-based image processing techniques. [Technical details?] (1999-01-06)
- Mpeg-4 aac main profile
compression, standard, algorithm A successor of MP3 allowing transparent coding at data rates of 70-75% of that of MP3. It is very different from MP3, only used MDCT, no subband coding. It is much more complex that MP3 and MPEG-2 AAC Low Profile. (2001-12-08)
- Mpeg-4 aac ssr
MPEG-4 Advanced Audio Coding Scalable Sampling Rate
- Mpeg-4 harmonic vector excitation
compression, standard, algorithm (MPEG-4 HVXC) An MPEG-4 variant using parametric encoding with a target bit rate of 20 kbps, for voice coding. (2001-12-09)