The difference between mp4 & mp3

What is MP3

MP3 is short for MPEG-1 Audio Layer 3, a format used for compressing the audio files in order to store them or transfer them on the internet. MP3 is an acronym for MPEG-3 (Moving Picture Experts Group). The audio files are stored in the computer or CD in a digital form. These audio files are compressed using a format called MP3. The audio files take a lot of storage space. The MP3 format reduces this requirement to 1/10th of the actual space requirement of music files. MP3 is a digital audio codec, which means that it compresses and decompresses the digital sound. The MP3 codec is based on the method of perpetual coding. The MP3 format uses the perpetual noise shaping algorithm that uses the hearing characteristics of the human ear. These characteristics include the ability of the human ear to hear the louder sounds when two sounds are played simultaneously. Also, the human ear cannot hear some sounds. Using this basic information, the algorithm for MP3 format has been designed. The unwanted sounds for human ear, according to these characteristics, are eliminated from the music for compressing it to the MP3 format. Altogether, the MP3 format utilizes the lossy compression technique for music.

Music is no exception. For years, MP3′s were the standard for music files. Then that all changed as more extensions were developed and released. Suddenly MP3′s weren’t the only things available. One of the extensions that came around was MP4.

What is MP4

The MP4 format is a format usually used for multimedia. MP4 is an acronym for MPEG-4 (Moving Picture Experts Group). The MP4 is a file format used to compress video files. The MP4 uses AVC technology, i.e. advanced video coding. The video files consume a lot of space and so they are compressed using the MP4 format. The MP4 uses the compression techniques that are more complex than those of the MP3 format. The MP4 format enables us to watch DVD quality videos on the internet even at a speed less than 1 Mbps. The MP4 format is specially developed for multimedia. The MP4 format has increased the portability and accessibility of audio and video.

MP3 Vs MP4

•The basic difference between MP3 and MP4 is that MP3 handles only audio and MP4 format handles audio, video, text and images.
•The original name of MP3 format is MPEG-1 audio layer 3 and the original name of MP4 format is MPEG-4 part 14. The file extension for MP3 and MP4 format is .mp3 and .mp4 respectively. The MP3 format was released in 1999; while the MP4 format was released in 2003.
•These formats were developed by different organizations. The MP3 format is developed by a group of engineers from Philips, CCETT, IRT and Fraunhofer society. The MP4 format is developed by the ISO (International Organization for Standardization) technical program, which is also known as MPEG (Motion Picture Experts Group).
•The MP3 format is used in the MP3 players that play only audio. The MP4 players, which use the MP4 format, have a wide variety of features like playing audio and video songs, web browsing and instant messaging.

Related software: 4Media MP4 to MP3 Converter

Key feature:

• Convert MP4 to MP3 with prefect audio quality reserved
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• Convert other audio formats to MP3, like AAC, OGG and M4A to MP3
• MP4 to MP3 converter for iPod, Zune, iRiver, Creative Zen players