Will Audio Compression Reach a Limit?

Thu, Jul 30, 2009, by Redburn

Audio

From 1400 bits per second to just 48 bits per second with mp4. Will this industry ever reach a compression limit?

The music industry has always been one of the most innovative ones. They generate billions of dollars every year, they have big brains working for them, but most of all this is a very good industry for the people, after all everyone likes to hear music.

In this very day you can have near CD quality at just 48 bits per second with the latest MP4 compression which is the Plus v2 version. Using the latest technology in high spectrum replication, using the data of smaller frequencies, this technology can simulate the higher frequencies, so you are not using so much space to store that information because it will be generated in real time.

It’s complexity is considerable, but CPU speed seems to be enough to deal with that crunch of data. Mp4 has more improvements and versions than all other codecs combined so it’s really hard to get a good MP4 player that can really play all these music. If it cannot, it cannot just go to Google and download the latest packs.

Image via Wikipedia

Music today is 30 times smaller than it was at the CD decade, which means that not only hard drives are many times bigger, you also can store so much more music than you could back then.

In fact with a standard hard disk today with just 1 TB (there are already 4 TB hardisks) you can store enough MP4 to not be able to listen to all the music here on earth, you need to be able to take it with you to heaven to continue to listen to it.

Image via Wikipedia

Frustrating?

Not at all. Thanks to the internet, computer spread, mp4 and never ending hard disk size increase, there is no reason why you cannot have all the music you can with you. You no longer need to carry tapes and CD’s with you, you do not even need to have the hard disk with you. Winamp has a technology that allows you to stream your music from your home computer to anywhere you want.

I believe that in the future they will develop even more technologies thanks to brain research to drop the bit rate to below 1 kilo bits per second. It sounds impossible now, just like it sounded impossible to have mp4 about twenty years ago. Its just a question of time.

Music compressed with a lossless codec will have a serious limit because it stores all the data, and some data you cannot listen to even if you are young and healthy.

Image via Wikipedia

The point now is not getting and storing music but selecting the best music to listen to because not only life is too short, you have endless options to listen to, not even considering that there is more god music being produced than all the music you could ever listen to.

Bruce Lee was (and still is) right, it’s more important what you do not do than what you do.

Select your music very carefully, you do not have time to listen to it all.

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