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iPad (or iPad 2) and 24-bit files - Page 2

post #16 of 69
Quote:
Originally Posted by blessingx View Post

Walker which iOS version? Also ALAC or AIFF? 

iOS version 4.3.3, ALAC.  Just tried it again, to be sure:

 

"Paper Airplane" was not copied because the sample rate is not supported by the iPad  . . .

 

Anything up to 48 / 24 works just fine - anything over that does not.  Also just confirmed the FLAC version of the same album synchs just fine via the FLAC Player.
 

 

post #17 of 69
Thread Starter 

I'll try ALAC tonight. You want to try AIFF? 

 

What about your desktop OS? Benchmark and I were both on OS X. 


Edited by blessingx - 6/23/11 at 6:04pm
post #18 of 69
Quote:
Originally Posted by blessingx View Post

I'll try ALAC tonight. You want to try AIFF? 

 

What about your desktop OS? Benchmark and I were both on OS X. 


Sure, I'll take a crack at AIFF  ;)  OS X 10.6.8 (also tried it on 10.6.7 earlier)

 

post #19 of 69

From where are you all getting your hi-rez files?

post #20 of 69
Thread Starter 

HDTracks, Reference Recordings HRx, B&W Society of Sound, DVD-A rips and BT needledrops. 


Edited by blessingx - 6/23/11 at 6:29pm
post #21 of 69

How are you converting them to ALAC?

 

Have all your hi-res ALAC files loaded onto the iPad via iTunes without issue?

 

(apologies for being so specific, but I just want to be sure we are all talking the same language here)

post #22 of 69
Quote:
Originally Posted by jpelg View Post

From where are you all getting your hi-rez files?



HDTracks, Ariama, Passianato, eClassics, etc.

 

post #23 of 69
Quote:
Originally Posted by jhwalker View Post




Sure, I'll take a crack at AIFF  ;)  OS X 10.6.8 (also tried it on 10.6.7 earlier)

 



No go on AIFF, either.

post #24 of 69
Thread Starter 

I haven't converted any 24-bit to ALAC yet. I just found out we (or at least some of us) can load 24-bit files by a test of a few tracks in AIFF (converted in Max from FLAC and dragged from Finder to docked iPad in iTunes - didn't add to iTunes library first). I manually sync music in iTunes (not sure if that plays a part). Will try a few experiments tonight (if i ever get done with work). 

 

 

Quote:
Originally Posted by jhwalker View Post

No go on AIFF, either.



Hmmm.

 

 


Edited by blessingx - 6/23/11 at 6:39pm
post #25 of 69

I'm confused again. I had assumed we were all talking about loading 24/96 & 24/192 ALAC files onto the iPad via iTunes synching.

post #26 of 69
Thread Starter 

Using iTunes and manually syncing (though syncing type may not matter) and 24-bit AIFF instead of 24-bit ALAC (though format may not be the issue). Will have more information tonight. 


Edited by blessingx - 6/23/11 at 6:59pm
post #27 of 69
Thread Starter 

Okay, this was waaaay more complicated than I expected. Guess I got lucky yesterday. And unfortunately it doesn't give me confidence that the option will always be around, but results below.

 

As yesterdays 'discovery' used a couple tracks from Explorations In Space And Time in 24/192 FLAC converted in Max to AIFF, I used a Reference Recording HRx disc this time (hint: results similar). And I can see why other are having problems. There is another solution, which was Benchmarks and I'll get to that at the end.

 

_____________________________

 

 

First track of Exotic Dances from the Opera HRx. 24/176.4 8476 kbps WAV file.
 
 
Dragged from Finder to directly docked iPad in iTunes (under devices): Success
 
Placed WAV into iTunes and dragged to docked iPad: 'Was not copied as this file cannot be played on this iPad'
 
WAV converted to ALAC in iTunes (confirmed in Get Info to be 24/176.4, listed as 4386 kbps): 'Was not copied as this file cannot be played on this iPad'
 
WAV converted to AIFF in iTunes (all automatic settings - confirmed in Get Info to be shifted to 16/176.4, listed as 5644 kbps - no 24 bit settings to force): 'Was not copied as this file cannot be played on this iPad'
 
Converted ALAC from iTunes opened in Finder, directly dragged back to docked iPad in iTunes: 'Was not copied as this file cannot be played on this iPad'
 
WAV converted in Max 0.9.1 to AIFF (linear PCM - confirmed 24-bit with 8467 kbps tested both AIFF and AIF as extension) and dragged from Finder directly to docked iPad in iTunes: Success
 
iTunes ALAC converted in Max to AIFF (linear PCM - 24-bit with 8467 kbps) and dragged from Finder directly to docked iPad in iTunes: Success
 
Max AIFFs added to iTunes and then dragged to iPad: 'Was not copied as this file cannot be played on this iPad'
 
WAV converted in Max to ALAC (automatic settings with 4280 kbps file produced) and dragged from Finder directly to docked iPad in iTunes: 'Was not copied as this file cannot be played on this iPad'
 
WAV converted in Max to ALAC added to iTunes and then dragged to iPad: 'Was not copied as this file cannot be played on this iPad'

 

 

_____________________________

 
 
So for locally stored music the key seems to be (at least with OS X) get Max involved, convert to 24-bit AIFF/AIF (to keep tags over WAV), set iTunes to 'manually manage music and videos'  and drag files directly to the iPad in iTunes instead of adding to your library first. Or use FLAC Player. I'm more confused now.

 

That's onboard though. Rereading the Benchmark piece they were all about streaming. Turning on Home Sharing opens up your iTunes library to your iPad and 24-bit files there, such as the ALAC iTunes produced files I was unable to load to the iPad. I can confirm streamed those files output correctly up to 24/94 (maybe more my V-Link is the bottleneck). 

 

Have similarly tested the Squeezepad (with in app streaming) and iPeng HD and unfortunately they seem to downsample everything to 16/44.1 for the iPad, unless I'm missing a setting somewhere on the server.  

 

 

 

 

 

 


Edited by blessingx - 6/23/11 at 9:30pm
post #28 of 69

Great post, blessingx. At least that clarifies the current state of possibilities. Again, thanks for all that effort!

post #29 of 69
Thread Starter 
Walker given it another go?
post #30 of 69
Quote:
Originally Posted by blessingx View Post

Walker given it another go?


Just gave it a try - can confirm if you don't add it to the iTunes library first, you can add WAV files up to 192 / 24 to iPad 2.  And they play correctly!

 

I don't know if they're actually being output in 48 / 24 (or whatever) because I don't have a USB DAC that will show the data rate being output - but I think it's cool you can at least get the files there and play them back :)

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