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Thursday 18 April 2013

Demystifying Sound Formats: What Structure Should You History In?


There are so many audio types out there, which ones should you select to history your audio in? An audio structure is a details structure through which music is stored on your pc. There are a wide variety of types, like wav, mp3, aiff, wma etc. To comprehend the difference between various types, we need to first comprehend terms compacted and uncompressed types.

Uncompressed Audio Formats

Uncompressed audio types are bulky data files and take up considerable area on your hard hard drive or storage drive. The advantage of uncompressed audio types is that the high company's electronic audio remains intact, as it is unchanged. It provides exactly the same quality; no matter how many times you procedure or re scribe it.

Compressed Audio Format

Compressed audio types pack the electronic audio details, resulting in smaller data files. You can free up valuable area on your hard hard drive by using compacted audio types.

Compressed audio types are further categorized into 2 two groups:

Lossless Compressed Audio Formats

These audio types pack electronic audio details, but there is no details loss or deterioration of audio high quality during the pressure procedure. The finest example of such structure is flac.

Lossy Compressed Audio Formats

These audio types pack electronic audio details, but are known to eliminate certain details and frequencies to reduce the quality. lossy compacted audio types causes deterioration in audio high quality. The difference in audio high quality can be big or small, depending upon how much details has been removed. Also, each following handling or re development will result in more high quality loss. The classic example of lossy pressure is MP3.

Which producing Format is the best for me?

To select the best producing structure, we need to comprehend 2 more terms, Testing and bit amount. Digital audio has two primary qualities that compose the way the audio is described. - sampling amount and bit amount.

Sampling Rate

When you are producing audio digitally, the device (say, your computer) receives the audio signal, by breaking it up into "snapshots" or examples. In producing technology, the variety of examples received per second is known as the sampling amount. The concept is comparable to a electronic movie camera that records a variety of picture frames per second and plays it back as a ongoing moving picture. In the same way, you listen to uninterrupted audio play-back. Testing amount is measured in hertz and symbolizes the audio frequency range. Higher the sampling amount greater is the audio high quality and ensures greater precision in your high notices and low notices. Conventional CD high quality incorporates a sampling amount of 44, 100Hz or 44.1 KHz. Testing prices start from 8000hz(very low quality) to 196,000(very top high quality, with extreme huge files).

Bit Rate

In electronic multimedia, bit amount often represents the variety of bits used per unit of play-back time to represent a ongoing medium such as audio. Let us know what the bit amount actually symbolizes. While sampling amount is variety of examples documented per second, bit amount represents the characteristics of each individual sample documented. Going back to the photographic camera example, bit amount is the equivalent of p in electronic images. Higher the p, better is the picture high quality. In the same way, higher the bit amount (also known as bit depth), better is the audio high quality. For instance an 8 bit audio will audio grainy and harsh, while a 16 bit audio sounds much better. Conventional CD structure has 44.1k sampling amount combined with 16 bit amount.

Naturally a 24 bit audio will offer the finest high quality, but such data files occupy more area and require greater computing power to procedure and may not be really necessary for the purpose of your audio. For FM transmission or internet streaming 16 bit prices are perfect. Expert audio studios opt for 24 or 32 bit prices, because the higher accuracy it offers is useful in the producing, combining and perfecting procedure.

Bit Rate in MP3

The MP3 structure is lossy audio structure that compresses audio tracks to reduce dimension by eliminating redundant details. You can select how much details an MP3 data file will retain or lose during the development and pressure procedure by tweaking the bit amount. Lower bit amount means that the encoder will discard more details during the pressure procedure, which may affect the audio high quality on play-back. Bit prices for MP3 encoders range from 16 kilobytes per second (kbps) to 320 killerbytes per second. A bit amount of 320 killerbytes per second gives CD high quality audio and is similar to what you'd hear on the radio. An increased MP3 bit amount provides better audio high quality but produces larger data files.

So what do you select for producing your audio? For pristine high quality, always history in uncompressed types like wav or aiff, at atleast 44,100 khz and 16 bit. This has 2 advantages. First, the audio will be documented in cd high quality. Secondly any following handling like combining, modifying etc will not result in any deterioration of the high quality. If you need to encode/record in mp3, at least 196kbps is lowest for a decent high quality, though 320 killerbytes per second is always the best.

Some of the widely used audio types include the following:

1. WAV Format

The Wavform or wav audio structure shops uncompressed audio details on Windows computers. It is based on the RIFF bit stream structure method of saving details. Since it shops uncompressed audio details, it maintains the 100% unique audio high quality and is popular amongst audio experts. The WAV structure can be easily edited using software. (Always history in 44,100 Khz and 16 bit(minimum) for studio room quality recordings)

2. AIFF Format

The Audio Interchange File Format (AIFF) developed by Apple Computers is an uncompressed audio structure widely used for saving audio details on Apple Macintosh systems. Because it shops uncompressed audio details, the AIFF structure is also widely used for professional audio applications. (Always history in 44,100 Khz and 16 bit (minimum) for studio room quality recordings)

3. MP3 Format

The MP3 structure is a widely used lossy pressure audio structure. It essentially reduces the quality by omitting details in the data file. By using perceptive audio programming and psychoacoustic pressure, the MP3 structure maintains the high quality as close to the unique as possible. Therefore MP3 is the widely used audio structure for saving lot of songs on your pc without taking up too much area with acceptable high quality. Never history in MP3, unless you have no other option. Always history in uncompressed types like wav/aiff and THEN CONVERT to mp3 data file of desired dimension.

4. AAC Format

The Advanced Audio Coding (AAC) structure, another lossy pressure audio structure was developed to be the successor of the MP3, as it offers better audio high quality than the MP3 at lower sizes. It is the common audio structure in Apple's i-Tunes and i-pods.

5. WMA Format

The Windows Media Audio (WMA) structure is a lossy pressure audio structure designed by Microsoft to compete against the MP3. However the MP3 stills maintains the top spot in popularity. The lossless compacted version of the WMA structure known as WMA lossless is also available that reproduces the unique audio high quality, with zero elimination on decompression and play, similar to wav or aiff.

Music Promotions Company is an experienced audio . Visit his leading online audio studio room http://musicpromotionscompany.com/online-mixing-mastering-studio.html for professional modifying, combining,mastering and audio post production solutions.




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