![]() ![]() MP3 uses the audio/mpeg MIME type and audio/mp3 codec. This has resulted in many different MP3 encoders, each of which produces audio files of different sound quality.ĭespite the patent, MP3 has proved to be one of the most popular audio formats for encoding sound files. The MP3 standard does not actually include an exact specification on how to encode MP3, but the standard does specify how to decode the format. Developed by the Moving Picture Expert Group ( ), MP3 differs from Ogg Vorbis in that it is covered under a patent held by Fraunhofer ( "), which receives a percentage of each sale. MP3 has rather a misleading name because it’s also known as MPEG-1 or MPEG-2 Audio Layer III. Where type can be for example audio, application, video or image and subtype might be jpg, mp3, or zip, depending on the value of type.įor a list of common MIME types and their corresponding file extensions, see: ttp:///ois/systems/wax/wax-public-help/mimetypes.htm MP3 It has now extended much farther than that, and MIME types are used to identify the type of information that a particular file contains.Ī MIME type definition usually takes the form of: type/subtype MIME stands for Multipurpose Internet Mail Extensions and is an Internet standard that was initially designed to describe e-mail content. ![]() Ogg Vorbis uses the application/ogg MIME type and audio/ogg codec. This format has proved quite popular among the gaming community with companies like Epic Games, Crystal Dynamics, and EA Games using it to deliver game music. This is ideal for delivery across the web because it reduces bandwidth costs. According to the Vorbis website ( ), Vorbis files can compress to a small file size and yet still maintain good sound quality. Ogg is the name of the container format and Vorbis is the specific audio compression that it uses. Because it is free of charge, it tends to be quite attractive as a format to use. Ogg Vorbis is an open source, unpatented, free file format created by the Xiph.Org Foundation ( /). ![]() The objective of the codec is usually to maintain the high quality of the audio signal using the smallest number of bits possible in order to reduce the size of the file in question and hence the bandwidth required for transfer.ĭifferent audio codecs can be used to output different audio file formats, a number of which are supported by HTML5. A codec is a computer program that uses a compression algorithm to encode and/or decode (hence the name: coder- decoder) a digital stream of data making it more suitable for playback on a computer or other device. ![]()
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