AMR and DWG File

AMR and DWG File Extensions Explained

As said earlier in my post on JAR and SMC file extensions, computer file extensionsare added to the end of saved file names, and are used to identify what format the file is saved in. This means that the operating system can automatically open the file in the correct program, without having to prompt the user to select the program needed. For example if your file is saved in JPG, your system knows that it is a image file, and that it needs to be opened with an appropriate imaging program such as Microsoft Photo Editor.

There are hundreds of different file extensions in use, which cover a wide range of different computer formatting needs. The file extension DWG for example is a drawing file, which is used to store two and three dimensional data and metadata. It is used in several engineering computer aided design (CAD) packages such as AutoCAD, which was one of the first examples of this software, and runs exclusively on the Microsoft operating systems.

Another type of file extension is AMR. This file extension AMR is a audio compression format that prepares a particular type of audio data for storage. It is commonly used by mobile devices such as mobile phones, and is specifically designed for the audio data compression of speech coding, and is most commonly used for sending MMS messageswith recorded speech sounds. AMR is also used for storing spoken audio files on telephone equipment, such as answer phone and voicemail messages, both commercially and in domestic settings. As AMR is designed specially to optimize speech pattern coding, it does not give effective results when used to compress other types of audio data such as music files.