Convert AMV to M4A

AMV to M4A Software converts AMV files to M4A. The software is an ALL-IN-ONE audio converter that supports more than 110 audio and video files.

AMV to M4A Software supports batch conversion and is full compatible with Windows 10/8/7/Vista/XP/2000.

1. Free Download AMV to M4A Software and then install the software by instructions
2. Launch AMV to M4A Software
3. Choose AMV Files
   
   Click on "Add Files" button to choose AMV files and add them to conversion list.
   
   
   Choose one or more AMV files you want to convert and then click Open.
   
   
4. Choose "to M4A"
   
   
   
5. Convert AMV to M4A
   
   Click on button "Convert" to convert AMV files to M4A format.
   
   
   Alternatively, you could click "Convert to One" to convert and combine/join/merge multiple AMV files to one M4A.
   
   
   The software is converting AMV files to M4A format.
   
   
6. Play & Browse



Right-click converted item and choose "Play Destination" to play the destination file, choose "Browse Destination Folder" to open Windows Explorer to browse the destination file.


7. Done

Free Download AMV to M4A Software

What is AMV?
Compressed video format produced by MTV for use in Chinese MP3/MP4/MTV Players. Usually saved in low resolutions from 94x64 to 160x120 pixels.

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 M4A?
M4A stands for MPEG 4 Audio. Since MPEG-4 Part 14 is a container format, MPEG-4 files may contain any number of audio, video, and even subtitle streams, making it impossible to determine the type of streams in an MPEG-4 file based on its filename extension alone. In response, Apple Inc. started using and popularizing the .m4a file extension. Software capable of audio/video playback should recognize files with either .m4a or .mp4 file extensions, as would be expected, as there are no file format differences between the two. Most software capable of creating MPEG-4 audio will allow the user to choose the filename extension of the created MPEG-4 files.

Because of its exceptional performance and quality, Advanced Audio Coding (AAC) is at the core of the MPEG-4, 3GPP and 3GPP2 specifications and is the audio codec of choice for Internet, wireless and digital broadcast arenas. AAC provides audio encoding that compresses much more efficiently than older formats, such as MP3, yet delivers quality rivaling that of uncompressed CD audio.

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