Jessica Kormos. Lifewire Technology Review Board Member. Jessica Kormos is a writer and editor with 15 years' experience writing articles, copy, and UX content for Tecca. Article reviewed on Oct 26, Tweet Share Email. Was this page helpful? Thanks for letting us know! Email Address Sign up There was an error. Please try again. You're in! Thanks for signing up. There was an error. Tell us why! With voices, it helps to know what the singer's voice sounds like on the original recording because it is more of a coloration of the sound rather than a non-musical rattling as it is with the piano.
On much other music, such as symphonies, jazz ensembles, rock and roll, string quartet and choral music, I cannot hear a repeatable way that Kbps AAC obviously degrades the original.
It is almost as though the more complex the sound is, the more the AAC algorithm can correctly recognize the less audible parts and leave the listener with a satisfactory original. Indeed, I have purchased a good bit of hard to otherwise find music directly from iTunes, and I have yet to hear anything that made me want to replace it with the original CD. This was comforting.
I took this recording, inflated it to its original state, and then ALAC-ed it, getting very nearly the same size files as a result. The piano literature was the first to be re-ripped, and the results for all piano music were much the same. Just to be clear, which I refer to "piano music," I mean music for a solo acoustic piano, recorded naturally either in a studio or a standard performing venue.
Our piano music spans compositions written in the years to The results are pretty much the same. I have expressed the results in terms of file size rather than bit rate. Let's consider two different types of recordings: [a] classical piano recorded in a studio or quiet and empty hall, [b] jazz trios recorded live.
For this study, I chose modern recordings that most people would consider to be well done, with a mix of fast and slow pieces, venues and performers. With Spatial Audio, when listening on compatible equipment, everyone should be able to hear the difference.
But Apple Music Lossless Audio is a whole other ballgame …. In the early days of digital music, the difference between lossless music and low-res mp3 recordings was dramatic, and anyone with halfway functional ears could easily hear the difference.
If you want to know just how bad things used to be in the early days, check out some 96Kbps mp3 recordings! But the situation today is very different. AAC is an extremely high-quality format, and is easily better than higher bit-rate mp3 recordings. AAC aims to compress the music in two ways, both of which are intended to be imperceptible to listeners:. Will you be able to hear the difference?
The answer is going to come down to a number of factors…. Not all tests are equal, however. You should, however, expect to spend some time doing it. You will be presented with two reference samples A and B , and a target sample X. You have to decide whether sample X matches sample A or sample B. You will be administered multiple trials for each of the five tracks used in the original Tidal test.
0コメント