With audio file formats, there are two types of audio quality: lossless and lossy. Lossless formats retain all of the original audio data. Typically, these are large, uncompressed files with lots of information and very high bitrates. There are also some compressed audio formats that retain lossless audio quality more on that in a moment. Lossy formats are compressed files that lose audio quality as the bitrate and file size is reduced. The files are made smaller by removing audio data that exists beyond a certain frequency range such as hums and feedback and by reducing the quality of certain sounds such as cymbals and high-hats.
The higher the bitrate, the more of the original data that is retained. This means that with a higher bitrate, you'll have higher audio quality but a larger file size.
To make this easier to understand, we've made a couple of very basic diagrams to help you visualize the difference between lossy and lossless compression. Referring to the diagrams below, think of an audio file as a stack of different colored blocks. The different colors in the diagram below represent different audio frequency ranges. Referencing the diagram below, you'll see that lossy compression removes the less audible frequency ranges represented by yellow and green blocks to make the overall file smaller.
The audio data that is read back in by your music player no longer processes the deleted data. This results in a smaller file size at the cost of audio quality. The main benefit of lossy compression is file size. Audio CDs use a lossless format for very accurate sound reproduction. A typical audio CD containing 9 songs might use up megabytes of disk space. But those same 9 songs might only use up 50 megabytes once compressed.
With lossless compression, instead of deleting extra blocks, the redundant blocks are removed and replaced with instructions. For example: In the chart below, you'll see that once our audio file is compressed into a lossless format, two blocks are now represented by one block with the number two.
Three blocks are represented by one block with the number three, and so on. When your music player reads the compressed file, it processes the instructions and rebuilds the original file with no loss of the original audio data.
MP3 Pros MP3 is most popular audio format around the world. It got this way for many reasons:. When compared with WMA format, MP3 is considered to have poor sound quality in low bitrates, especially less than 64 kbps. In addition, MP3 uses a bit more storage space. That's to say, if you want the best sound quality, you need to convert your MP3 files with the LAME encoder from your lossless music sources. This, however, has not always been so simple for an average user who doesn't even know what LAME is all about.
The accepted conclusion for WMA audio format was that it has better sound quality in low bitrates like 64 kbps. But others disagree, and believe they could hear significant crackling in the bass, and the overall sound is tinny. WMA was designed by Microsoft, so it was supported really well on Windows platform.
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MP3 is more compatible with various devices,. You must log in or register to reply here. Audio 2 Jul 10, T Solved! Audio 6 Jul 14, T how to repair ripped cable on Bose ae2 Audio 2 Jul 11, I I got my speakers as a gift but the main power code was ripped right out, I opened it up and noticed a wire was just hanging t Audio 1 Nov 29, S Rip and connect 2 or more tracks to make one single MP3 file.
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