AMV to AAC
Convert AMV to AAC, AMV to AAC Converter
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AMV to AAC software converts AMV to AAC. The software is an ALL-IN-ONE audio converter that supports more than 90 audio and video files.
AMV to AAC software supports batch conversion and is full compatible with Vista and Windows 7.
What is AMV?
AMV is a proprietary video file format, produced for MP4 players, as well as S1 MP3 players with video playback. There are now two different MTV formats: the older one for the Actions chip, and a newer one for ALi's M5661 chip. This format for ALi one was ALIAVI.
The container is a modified version of AVI. The video format is a variant of motion JPEG, with fixed rather than variable quantisation tables. The audio format is a variant of IMA ADPCM, where the first 8 bytes of each frame are origin (16 bits), index (16 bits) and number of encoded 16-bit samples (32 bits); all known AMV files run sound at 22050 samples/second.
Low decoder overhead is paramount as the S1 MP3 players have very low-end processors (a Z80 variant). Video compression ratio is low ¡ª around 4 pixels/byte, compared with over 10 pixels/byte for MPEG-2 -- though as the files are of low resolution (96¡Á96 up to 208¡Á176) and frame rate (10, 12, or 16 frame/s), file sizes are small in bytes per second. With a resolution of 128¡Á96 pixels and a framerate of 12 frame/s, a 30-minute video will be compressed into 80 MB.
What is AAC?
AAC has been standardized by ISO and IEC, as part of the MPEG-2 & MPEG-4 specifications. The MPEG-2 standard contains several audio coding methods, including the MP3 coding scheme. AAC is able to include 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 15 low frequency enhancement (LFE, limited to 120 Hz) channels and up to 15 data streams. AAC is able to achieve indistinguishable audio quality at data rates of 320 kbit/s (64kbit/s/channel) for five channels. The quality is close to CD also at 96 kbit/s (48kbit/s/channel) for stereo.
AAC's best known use is as the default audio format of Apple's iPhone, iPod, iTunes, and the format used for all iTunes Store audio (with extensions for proprietary digital rights management).
AAC is also the standard audio format for Sony's PlayStation 3 and is supported by Sony's Playstation Portable, latest generation of Sony Walkman, Sony Ericsson Walkman Phone, Nintendo's Wii (with the Photo Channel 1.1 update installed for Wii consoles purchased before late 2007) and the MPEG-4 video standard. HE-AAC is part of digital radio standards like DAB+ and Digital Radio Mondiale.
Convert AMV to AAC Related Topics: 3GP to AAC, ALAC to AAC, AMR to AAC, AVI to AAC, AC3 to AAC, ADX to AAC, AIFF to AAC, IT to AAC, M4A to AAC, MOD to AAC, MP3 to AAC, MP4 to AAC, MPC to AAC, MTM to AAC, SPX to AAC, TTA to AAC, UMX to AAC, WAV to AAC, WMA to AAC, DIF to AAC, DIVX to AAC, DVR-MS to AAC, EVOB to AAC, FLV to AAC, H264 to AAC, HDTV to AAC, M2TS to AAC, M2V to AAC, MOV to AAC, MP2 to AAC, NSA to AAC, NSV to AAC, OGV to AAC, CD to AAC, VOB to AAC, VOC to AAC, WMD to AAC, XVID to AAC
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