Saturday, September 12, 2009

Amazingly GENIUS!

The Genius feature, introduced in iTunes 8, automatically generates a playlist of songs from the user's library which are similar to the selected song. Genius playlists are created by the ratings system and collaborative filtering. An iTunes Store account is required because information about the user's library must first be sent anonymously to Apple's database. Algorithms determine which songs to play based on other users' libraries, and Genius becomes more intelligent given a larger data set. The resulting Genius playlist can contain 25, 50, 75, or 100 songs and can be refreshed for new results or saved. The Genius Sidebar will similarly recommend selections for purchase from the iTunes Store based on the selected library track. Once Genius becomes active in iTunes, it can be used on current generations of the iPod Classic, iPod Nano, iPod Touch or the iPhone. [34] iTunes 9 added Genius Mixes, where the Genius software finds similar music and automatically puts them into mixes.[35]

source: wikipedia

Apple's Lossless and WAV

Just posting an Apple Discussions that might help our fellow Apple Users: 

highland99

Posts: 32
From: Alaska
Registered: Aug 25, 2008

 
 


I've seen a number of postings declaring that Apple's lossless format is identical in quality (but of course smaller in size) compared with WAV.

However, I haven't seen any links to any official statements by Apple or trusted third-party sources on this issue.

I'm not saying that such official data/proof doesn't exist. I just don't know where to find it. Doing a Google search doesn't turn up too much -- just lots more people saying that which is noted above (but without any proof).

Anybody have any links they would care to share...?

Voodoo PC   Windows Vista    

Chris CA


Posts: 40,281
Registered: Aug 25, 2005

Re: Apple's lossless and WAV
Posted: Sep 4, 2009 9:18 PM   in response to: highland99
 

Apple's lossless format is identical in quality (but of course smaller in size) compared with WAV.
It's called Lossless for a reason...
It's bit for bit identical (on playback) to the audio on a CD (and WAV and AIFF).

http://aroundcny.com/Technofile/texts/mac060204.html
http://www.cs.rice.edu/~dwallach/music-shifter.html

iMac G5 (Rev B) ALS - 2 GB RAM   Mac OS X (10.5.7)   silver mini, blue mini, silver shuffle  

highland99

Posts: 32
From: Alaska
Registered: Aug 25, 2008

Re: Apple's lossless and WAV
Posted: Sep 4, 2009 9:30 PM   in response to: Chris CA
 

Thanks for the link, thanks for the info!

Voodoo PC   Windows Vista    

John Lockwood


Posts: 878
From: London,UK
Registered: Jul 10, 2001

Re: Apple's lossless and WAV
Posted: Sep 8, 2009 6:53 AM   in response to: highland99
 

Now that you have seen that lossless means exactly that. You maybe interested in how to use Apple Lossless in Windows Media Player and Microsoft Media Center.

See my tips on this page http://thewelltemperedcomputer.com/SW/WMP/FileFormat.htm look in the AAC and ALAC section.

I have my entire music library in Apple Lossless and shared between iTunes, WMP, and Media Center.

Apple Lossless is the only lossless format that enables this and still provides access for both iTunes and WMP to the meta-tags (unlike FLAC, WAV, or AIFF).

Intel Mac mini   Windows XP Pro   Running Media Center 2005!  

highland99

Posts: 32
From: Alaska
Registered: Aug 25, 2008

Re: Apple's lossless and WAV
Posted: Sep 11, 2009 6:27 PM   in response to: John Lockwood
 

After spending the past 7-10 days comparing Apple's lossless with WAV, I may be crazy, but I'm still somewhat convinced that there is a difference in the sound quality.

To my ears, WAV sounds richer and fuller.

(I'm using an iPod Classic with Sennheiser HD 650 headphones: http://www.sennheiserusa.com/private_headphones_audiophile-headphones_009969)

I read somewhere -- but of course cannot remember exactly where -- that some audiophiles still believe that WAV sounds better (when compared with Apple's lossless). Is there any technical data to support this...?

Message was edited by: highland99

Voodoo PC   Windows Vista    

DJ Omega Rush

Posts: 34
From: Earth
Registered: Sep 10, 2009

Re: Apple's lossless and WAV
Posted: Sep 11, 2009 7:30 PM   in response to: highland99
 

Could also depend on sample quality. Are we comparing a 48K and a 44.1K encoding, or does lossless use 48K as well?

I'd say screw it and encode your junkz in 24bit/32bit Wave and be done with it (if you are synthing your own stuff).

PC   Windows XP Pro  

ed2345


Posts: 4,339
From: New Jersey, USA
Registered: Aug 12, 2006

Re: Apple's lossless and WAV
Posted: Sep 11, 2009 7:57 PM   in response to: DJ Omega Rush
 

DJ Omega Rush wrote:
does lossless use 48K as well?

"Lossless" means a lossless representation of the thing you are encoding, so if you are ripping from an audio CD the answer is 44.1

I'd say screw it and encode your junkz in 24bit/32bit Wave and be done with it (if you are synthing your own stuff).

If you are creating an original studio recording you can use 24 or 32. But if you are ripping from CD, it is only in 16 bit sampling, and encoding above that is a waste.

  Windows XP   and 30GB iPod  

highland99

Posts: 32
From: Alaska
Registered: Aug 25, 2008

Re: Apple's lossless and WAV
Posted: Sep 11, 2009 10:53 PM   in response to: ed2345
 

I am indeed ripping everything directly from CDs. So these CDs are really no more than 16 bit...?

A lot of what I am listening to is classical; I believe (but I'm not entirely sure) some of these CDs are above the 16 bit range.

So I'm just trying to clarify: if it is a CD that is above the 16 bit range, is it recommended to go with the WAV format...?

Or, are all CDs limited to 16 bit...? (I could have sworn that I saw some CDs that were above this bit range...)

Thanks!

Voodoo PC   Windows Vista    

ed2345


Posts: 4,339
From: New Jersey, USA
Registered: Aug 12, 2006

Re: Apple's lossless and WAV
Posted: Sep 12, 2009 4:50 AM   in response to: highland99
 

highland99 wrote:
I am indeed ripping everything directly from CDs. So these CDs are really no more than 16 bit...?

Standard audio CDs use 16 bit encoding.

A lot of what I am listening to is classical; I believe (but I'm not entirely sure) some of these CDs are above the 16 bit range.

There are other CD formats in the world, such as SACD, that use different formats. Is that what you have? They are quite uncommon.

So I'm just trying to clarify: if it is a CD that is above the 16 bit range, is it recommended to go with the WAV format...?

Standard audio CD encoding (16 bit, 44.1kHz sampling, 2 channel stereo) takes about 10 MB per minute of music. You can stick the CD into iTunes, and when it registers, see what you have. For example, if a 40 minute CD has around 400 MB, that is the standard.

iTunes WAV encoding is limited to 16 bits, so if you have something else you will need a stronger ripping tool.

Or, are all CDs limited to 16 bit...? (I could have sworn that I saw some CDs that were above this bit range...)

SACD? See above. Higher bit rates (and higher sample rates) are used in sutdio master recordings, but not on the CDs.

Thanks!

Hope this helps.

Thursday, September 10, 2009

iTunes New Features

Apple's iTune's evolution is now out for you to try:

iTunes LP
The best thing to happen to fandom.

The visual experience of the record album returns with iTunes LP. Download select albums and experience a beautifully designed, interactive world right in your iTunes library on a Mac or PC — many are created by the artists. While you listen to your favorite songs, you can dive into animated lyrics and liner notes, watch performance videos, view artist and band photos, and enjoy other bonus materials. And become an even bigger fan.

Home Sharing
A better way to share.

iTunes makes it easier to share music, movies, TV shows, and more. With Home Sharing, you can browse the iTunes libraries of up to five authorized computers in your house, import what you like, and automatically add new purchases made on any of the computers to your own library.

The Redesigned iTunes Store
Check out the new venue.

The world’s #1 music store is even better. With a beautiful redesign and refined navigation, the new iTunes Store makes it easy to explore songs, movies, TV shows, and more.

iTunes Extras
Now featuring: Special features.

When you buy select movies from the iTunes Store, you won’t get just a movie. You’ll get iTunes Extras — a world of special features you can experience right in your iTunes library. Watch interviews and trailers, view photos, and more on your Mac or PC.

Genius Mixes
Perfect mixes come automatically.

Meet Genius Mixes. This new feature searches your iTunes library, finds songs that go great together, and creates multiple mixes you’ll love. All automatically. These mixes are like channels programmed entirely with your music. You may discover songs you never knew you had — and rediscover forgotten favorites.

Improved Syncing
A simpler way to sync.

iTunes brings new, more flexible ways to sync your media from your computer to your iPhone or iPod. And it’s easier to organize all the apps on your iPhone or iPod touch, because now you can do it right in iTunes, right from your computer. Shop the App Store on your computer, iPhone, or iPod touch. Then go to your iTunes library to arrange (and rearrange) your apps and add (or delete) Home screens. iTunes automatically syncs your new Home screens with your iPhone or iPod touch.


Refinements that rock.

iTunes brings you even better ways to manage and share everything in your library. You can make your Smart Playlists even smarter. You can save iTunes Store items you want to purchase later in a new wish list. You can buy ringtones of your favorite songs directly from the iTunes Store on your iPhone and assign a specific song to a contact. And if you’re an avid social networker, it’s easy to tout your favorite music, movies, and TV shows on Facebook and Twitter right from the iTunes Store.

source: apple.com