Some DJs refuse to use MP3s at all, saying even the best of them sound bad compared to lossless audio. The MP3 is easily the most widespread of the lossy formats. avi video files and codecs can tell you! With audio, you don’t really need to know about this but if you’re interested, there a lot of dry depth on this Wikipedia page). (By the way, there’s a distinction to be drawn between “containers” and “formats”, as anyone who’s ever dabble with. The trade-off with these is that they take up much more room and are also harder to move around because of their size. Uncompressed lossless files are simply straight recordings of the original, with nothing done to them. Compressed lossless audio has had inaudible changes made to reduce file size – they’re typically not as small as lossy files, but the changes are enough to make a big difference to size nonetheless. These files come in two types – compressed and uncompressed. Lossless, meanwhile, is audio recorded without any musical data removed. This means that the audio you play has got bits missing from it, due to having been altered to make the file smaller. The algorithms that lossy formats use try and remove parts of the music where it doesn’t matter so much – but the smaller the file is compressed to with these formats, the more trashed it becomes. Lossy audio is easily the most common of the types, basically because the ubiquitous MP3 is “lossy”. Let’s look a little closer… Lossless vs lossy audio With news this week that Apple wants to make “24-bit” files available through iTunes, we thought it would be a good time to revisit the music formats that are out there and look at what they mean for digital DJs.Īs a digital DJ, it pays to know your audio formats: Not only should you be aware of the different audio formats that exist, so you recognise them when you come across them, but also you should know when the use of each of the formats is appropriate and when it is to be avoided.
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