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MPG to WAV
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Information about WAV |
|---|
| File extension |
| wav |
| File category |
| Audio |
| Stands for |
| Waveform Audio File Format |
| Developer |
| Microsoft and IBM |
| Overview |
| WAV or WAVE is an audio format which was developed to store audio files on personal computers. These files include music, spoken or speech audios and sound effects. The size of the files in this codec is very large as it does not use a lossy format like MP3. This is the main reason why this format has lost its popularity. Due to its size, it is hard to transfer files over the internet which had resulted in less acceptance. This format is supported by many programs like a window Media player. Therefore, these audio files can be played using aforesaid software. One can not completely ignore this format as it provides high quality of audios. Due to this, it is used for radio broadcasting. |
| Technical description |
| This format supports metadata that is why we can add details using information chunk. Data in this codec is stored in chunks as it is an application of RIFF(Resource interchange file format). Furthermore, LPCM(Linear pulse code modulation) is the most common, uncompressed audio format in this, but it can also store compressed audio like MP3. Also, it is especially used by professionals as LPCM audio format offers a maximum quality. Only files up to 4 GB are supported by this format which is one of the limitations in this format. This is because of 32-bit unsigned integer which carries the file size header. To overcome this, W64 format came into existence which can record long audios as it enables 64-bit header. |
| Links |
| wikipedia.org |
Information about MPG |
|---|
| File extension |
| mpg |
| File category |
| Video |
| Stands for |
| Moving Pictures Experts Group |
| Developer |
| IOS/IEC |
| Overview |
| MPG/MPEG is a file extension that uses MPEG-1 and MPEG-2 codecs for video and audio files. The lossy compression in this format leads to enhancement of the streaming and downloading speed. That is why it is very popular and widely accepted for movies. This format is compatible with both Mac/Macintosh and Windows including some other portable devices. The files that are encoded using this codec provide compressed data that has small size but the quality is not sacrificed at all. It just deletes or neglects the superfluous information that can not be noticed by the human ear. This lossy encoding takes less storage space to store data. Although this format is not efficient enough to provide excellent quality, yet, it is used most of the times due to its higher level of compatibility. |
| Technical description |
| The compressed ratio in digital video files under this format is 26:1 and for audio files it is 6:1.The bit rate in MPEG-1 is about 1.5 million bits per second and it is used to compress CD data., Besides this, MPEG-2 is designed especially for digital TV broadcast and DVD as it uses a bit rate above 4 million bits per second to compress both audios and videos. It should be noted that due to backwards compatibility with MPEG-1, video decoders have the ability to play a lower bit rate. It produces high quality of compressed files. Other uses of MPEG-2 is for Cable network, satellite and television stations; etc. Furthermore, it supports 5.1 multichannel audio. |
| Links |
| wikipedia.org |
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