Tangband skrev:hifikg skrev:Tell skrev:
Skulle nästan kunna säga att jag är emot det faktiskt, för det finns verkligen ingen poäng o drar onödig bandbredd och slösar med diskutrymme, o då även på serversidan där Apple måste öka sin diskkapacitet med 36 gånger om dom vill att allt ska gå från deras gamla 256kbps AAC till att vara überhögupplöst. Ljudkvalitetsförbättringen är däremot garanterat inte alls 36 gånger bättre, men som alltid så vet ju företagen att dom kan snärja folk som ger dom klirr i kassan med höga flashiga siffror om saker dom inte riktigt förstår sig på, vilket även är ganska tydligt här.
Men pja, människan är verkligen expert på ineffektivtet, slöseri o mycket-vill-ha-mer, så varför skulle det här vara annorlunda?
Konspirationsteori: Streamarna levererar även fortsatt 256-filer, men märker om dem till 16/44 eller högre
Genom en listig algoritm tar de inte mer plats förrän de landar i din dator.
Nu blev jag så paranoid att jag måste fortsätta köpa fysiska CD-skivor, men tänk om de är, som den Bill50x berättade om, lågupplösta i grunden!
Huvva, var köper man egen inspelningsutrustning och hur återupplivar jag Elvis & Cohen?
Det är kul att de nu börjar jämföra mellan TIDAL och Apple Music lossless. Här en kille som använt programmet blackhole och spelat in jämförande filer i Logic Pro X.
https://www.audiosciencereview.com/foru ... 74/page-50” I took few minutes of my time to do a little bit of testing last night to compare Apple music and Tidal. Note that I am not an audio engineer whatsoever I am just a musician / producer hobbyist so I don't even know if my testing is really relevant.
To do my testing I reaped the sound out of my mac with the software blackhole. Then I recorded directly into logic pro X. There's no A/D and D/A conversions here, I recorded the digital data directly.
1. I Chose a song that is only available in 16/44.1 both on Apple Music and Tidal
2. I recorded the output of apple music with a the audio output setting set on the blackhole software
3. I I recorded the audio output of Tidal with the audio output of Tidal set on the blackhole software (exclusive mode was not available)
4. I download the original lossless, uncompressed file from the artist's bandcamp.
5. I zoomed in the three tracks on logic pro as far as I could go (You can actually see the digital steps of the sine wave) to time-align the three track as much as possible. It was not perfect but I feel like I did a good job with that.
Then:
1. I did a visual comparison of the sine waves
2. I did a audio comparison of the original track with Apple music and then Tidal phase reversed to be able to hear the differences between each streaming reaped files vs. the original audio file.
3. I did a audio comparison between the three with my focal shapes and hd600 & 7506
Results:
The first thing that suprised me the most is that even though the three files are 4:04 long the they couldn't stay time aligned for very long... Apple music one was shorter than the orignal file and the TIdal one was longer. I repeated the process multiple times with always the same result: the space time continuum seems to happen faster on Apple music and slower on tidal... Maybe I did something wrong here because I've got no idea why. Differences were really short though maybe 2/10th of a second shorter with Apple and 4/10th longer with Tidal.
1. Visually, the apple music sine waves was looking more alike the original file by a good margin. I kept scroling around going back and forth one to the other with the arrow keys and no doubt that for this comparison the Apple music reaped file was more true to the source and looking very similar. All my meters, loudness, peaks, etc. were identical for all of them.
2. The phase reverted comparison result was not a surprise after the visual one. Apple music was way more true to the source with differences audible only in the upper midrange and treble and raisonably quiet. Differences with the Tidal one were louder and down to the midrange area.
3. For the listening test, I could not dicern any significant differences between the files and if I did find some, maybe it was a placebo effect. I could not tell which one I like the most and the human auditory memory being very poor, I can't imagine anyone being able to succeed in a blind test. Please note that I was not in the best condition for critical listening though. It was still day time with (low but still..) ambiant noises in a partly treated home studio.
Anyway. This is worth what's it's worth (maybe peanuts) but it seems like, for this track, Apple music offers a better streaming quality than Tidal. However this will not affect the enjoyment you'll have listening music with one or the other by any means in my opinion.
It'd be interesting someone with actual skills I don't have do a proper comparison thought.”
Men jag också noterat att när det låter RIKTIGT bra - alltså när jag reagerar som "fy fasen vilken fin inspelning" - så kan det lika gärna vara CD-kvalitet som Hi-res på filen.
