Gadgetory

dear 160 can't ignore bazan spa bye did you get your 256 AAC on iTunes be your lossless FLAC on title well if you're one of the two dozen people that has a title subscription edit if you're into music it might seem like they're just way too many audio formats to choose from can't we all just use mp3 wrong no we can't there's a very good reason for all of the madness different audio formats make things more optimized for different types of users electronic music artists home theater enthusiasts or just straight-up basehead let's start by looking at common formats used by average listeners mp3 AAC and Vorbis these all store audio using lossy compression which means these formats are often defined by the fact that they discard some information from the original audio source well hold on now is that like an mp3 of don't fear the reaper doesn't include the cowbell not exactly you see most people simply can't hear much of the information in the uncompressed audio files you'd find on a retail CD we're talking sounds that are so low in volume so high in pitch are so close in time to other sounds that the vast vast majority of people can hardly perceive them so lossy formats just cut them out oh and they also save space by using a different bitrate you see when a song gets digitally recorded in a studio the recording equipment takes samples of the analogue sound waves coming out of a guitar or a singers mouth and stores them as digital bits just standard ones and zeros on an uncompressed CD the audio you hear is typically stored at a bit rate of 1411 kilobits per second but lossy compression discards a lot of these bits to make the file often many times smaller for example a four minute uncompressed song that takes up about 42 megabytes would only be about 8 megabytes as a relatively high 256 kilobits per second mp3 and although mp3 is probably the most familiar lossy format others are widely used for different reasons such as AAC which pitches higher quality at lower bit rates due to a fancy compression algorithm and OGG Vorbis which is completely open-source and patent free unlike mp3 but some folks aren't satisfied with the level of quality you get with lossy audio especially audio files who want to get the most out of their high-end headphones and speakers and instead they turn to formats like black or a lack which offer lossless compression these files contain all of the original audio data but with smaller file sizes if that sounds like magic it's not lossless compression is accomplished by looking for ways to more efficiently store redundant data so this string would be expressed this way instead and by predicting what sound should come next lossless codecs can store only the difference between the predicted data and the actual data which takes up much less space and because formats like flack and a lack are specifically designed for audio they can compress sound clips much more than general-purpose compression schemes like zip in fact a typical audio file with lossless compression will only take up about half as much space as an uncompressed equivalent and if you're wondering about the difference between flack and a lack you'll need to use the latter if you want to listen to lossless music in iTunes and yeah that's about it but there are also other lossless codecs like Dolby true HD and DTS HD master audio for both home theaters and commercial multiplexes that have proved popular with movie studios so look out for these logos when you're out buying blu-rays if you're a home theater enthusiast even more interesting is Dolby Atmos which encourse each sound in a movie soundtrack spatially meaning it can scale to a huge number of speakers because the audio is mapped in space instead of being coded for just one speak you can learn more about that right up here but despite the popularity of compressed formats keeping audio and uncompressed form does have its advantages uncompressed files stored in wav or AF format are not only compatible across a huge range of devices because they undergo very minimal processing from the original audio signal but they also contain all of the information that was originally converted from analog to digital they're easier for audio editors and creators to fine tune as much as they'd like all of that being said at the end of the day if you just like listening to music pick a format that you think sounds good or whatever the format the music already comes in and be sure not to judge other people too harshly because their library is full of 128 kilobyte rips from YouTube the racing against the clock is a freelancer challenging yes but with the growth of the Internet there's never been more opportunities for the self-employed to meet this need check out fresh books cloud accounting software designed for the way you work it is a simple and easy way to be more productive organized and most importantly get paid quickly create and send professional-looking invoices in less than 30 seconds set up online payments with just a couple clicks and get paid up to four days faster see when your client has seen your invoice and put in ends to the guessing games fresh books is offering a 30-day unrestricted free trial to our viewers to claim it go to FreshBooks comm slash tech wiki and Intertek wiki in the hata to hear about a section thanks for watching guys you liked the video like it if you just like to dislike it get subscribed hit the little bell to see all the videos on tech wiki get subscribed again and then press it again so that you're actually subscribed to that would be three times resulting in a subscription unless you're already subscribed then I would want you to press it a fourth time so you would actually be subscribed and I'll see you next time