AVI to WMA Converter
Convert .AVI into .WMA Files - Fast, Free and Secure. We also have information of .AVI and .WMA Files extensions on this page.
Information about AVI |
File extension |
| avi |
File category |
| Video |
Stands for |
| Audio Video Interleave |
Developer |
| Microsoft |
Overview |
| This file format stores both audio and video files for playback purposes. It is used to store files that are of high quality as file compression is less in this extension. Windows OS uses this as the default format to store multimedia files but other operating systems such as Linux, Unix and Mac also support this. The data in it is encoded by various codecs such as DivX and XviD. There is a variety of software that support these files. For instance- Microsoft Movies & TV, Windows Media Player and Apple QuickTime player; etc. Due to its low compression ability, it is widely used to make short movies, promos and advertisements; etc. It should be noted that AVI format result in large files that is why it is rarely used for video streaming. |
Technical description |
| In AVI extension, file's data is divided into blocks or chunks as it is a sub-format of RIFF(Resource Interchange file format). An identification of each chunk is done by FourCC tag. File header and metadata of video(like height, width and frame rate) are identified by ‘hdrl tag' which is sub-chunk and it is mandatory. There is one another chunk which is also obligatory that is ‘movi tag' and it has actual audio or video data. The last sub-chunk is ‘idx1 tag' and it records the offsets of the data chunks. This ‘idx1 tag' is completely optional. There is one limitation of this format that it does not contain variable bitrate data. |
Links |
| wikipedia.org |
Information about WMA |
File extension |
| wma |
File category |
| Audio |
Stands for |
| Windows Media Audio |
Developer |
| Microsoft |
Overview |
| It is an audio file format which is proprietary or closed source software. It is available in four different versions. First one is the original WMA codec. This gives competition to the MP3 and it came into existence in 1999. Next is WMA Pro which is an advanced and new codec. It uses lossy compression but provides audios of high resolution. The third is WMA lossless codec and it encodes audio without losing any information. Lastly, there is WMA Voice which is again a lossy compression and it was developed for audios with low bandwidth or low bit rates. Microsoft has developed an advanced systems format which is used by ‘Windows Media Audio' to store encoded audios. Metadata objects like the album, the genre of track and title; etc. can also be added in this codec. The prime use of this extension by users is streaming on the internet. |
Technical description |
| Microsoft has various claims about this codec. Firstly, it was alleged that at 64kbps this format will deliver the same quality of audio as of CD. This was rejected at the end. The second claim is that it gives better sound quality than MP3 at the same bit rate. Thirdly, it was professed that this extension provides a similar quality of audio at a lower bit rate than MP3 at a higher bit rate. Apart from this, there is an option available for this container i.e. DRM(Digital rights management) and this option is completely elective. One may or may not choose this choice. A number of software support this format like Windows media player, Microsoft expression encoder; etc. |
Links |
| wikipedia.org |
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