Why Need to Convert Video to and from MP4 For example, you can upload MP4 videos to YouTube, Facebook, Instagram, Twitter for sharing with your friends Playing MP4 video files on PC/Mac, iPhone/iPad/Apple TV, Android, Sony PSP, MP4 players, VLC media players and other media players Editing MP4 videos by Windows Movie Maker, iMovie, Adobe Premiere Pro, Final Cut Pro or UkeySoft Video Editor, ect. Therefore, many video formats based on MPEG-4 technology have appeared on the market, such as WMV 9, Quick Time, DivX, Xvid, etc.Īs one of popular video format, MPEG-4 or MP4 video files is widely used and compatible with most devices, players, video editing and video website. Since MPEG-4 is an open platform, companies and organizations can develop different formats according to the MPEG-4 standard. These technologies are based on G723, G728, MPEG-1 and MPEG-2. Then use video transform coding technology. (CELP, CodeExcitedLinearPredictive) coding technology and code rate above 16kbit/s. For example, 2~4kbit/s speech coding of 8kHz sampling frequency and 4~16kbit/s speech coding of 8kHz or 16kHz sampling frequency generally adopt parametric coding and 6~24kbit/s speech coding generally adopts code excitation linear prediction. The MPEG-4 study compares various existing audio coding algorithms and supports natural sound coding from 2 to 64 kbit/s. The MPEG-4 audio portion combines the synthesized encoding of audio with the encoding of natural sound and supports object features of audio. Compared to MPEG-1 and MPEG-2, MPEG-4 supports not only natural sounds (such as voice and music) but also synthetic sounds (such as MIDI). MPEG-4 includes the vast majority of MPEG-1 and MPEG-2 features and the strengths of other formats, and adds and extends support for Virtual Reality Modeling Language (VRML), object-oriented composite files (including Sound effects, video and VRML objects), as well as digital rights management (DRM) and other interactive features. MP4 is a set of compression coding standards for audio and video information.

Part 1: How to Convert Video to MP4 on a Mac Part 2: How to Convert MP4 Video to Any Format on a Mac What IS MP4?

Mp4 converter mac