Some Great Mono Recordings

I wrote an article for the latest issue of The Loop Magazine about the pleasures of listening to mono recordings. Not just records pressed in one track, but more specifically those made at the dawn of the stereo era, when mono mixes were still the first end products of sound engineers. In many cases, the stereo mixes of the same records sound contrived, full of effects; the mono mixes sound more honest, closer to what the artists wanted the music to sound like.

The following is a selection of some great mono recordings. Some are mono mixes of records you may know in stereo, others are just good quality mono recordings, so you can hear how real one track can sound. (You can listen to sound samples on Amazon or the iTunes Store, using the links below, to hear some of what I’m discussing.)

The best place to start is with three box sets released in recent years, focusing on three great artists and their original mono recordings in newly remastered versions.

Bob-Dylan-original-mono-150x150.jpgBob Dylan – The Original Mono Recordings (Amazon.com, Amazon UK, iTunes Store) includes the original mono mixes of Dylan’s first eight albums, including such essential discs as Blonde on Blonde and Highway 61 Revisited. There are many differences between the mono and stereo mixes, notably in panning effects (having instruments mostly or entirely on one channel). As the liner notes to this set point out, these are the albums “as most people heard them, as they were expected to be heard, as and most often they were meant to be heard: in mono.”

An I mention in my article, Desolation Row, from the 1965 album Highway 61 Revisited, is one of the most marked examples of a difference between the two mixes. The mono mix has Dylan’s voice front and center, with the acoustic guitar behind him. But in stereo, that guitar is set mostly on the right channel, and stands out both in volume and in position, distracting a bit from Dylan’s poetry, especially when heard on headphones.

miles-davis-original-mono-recordings-150x150.jpgA recent box set of Miles Davis – The Original Mono Recordings (Amazon.com, Amazon UK, iTunes Store) shows how Miles’ first nine Columbia albums sound in their original mixes. His first album for the label boasted “Guaranteed High Fidelity in ‘360’ Hemispheric Sound.” Several paragraphs in the liner notes discuss the recording and manufacturing process, including the mention of “strategically placed wide-range microphones.” Recording engineer George Avakian said, “Mono featured less audio trickery and fewer audio distractions so you can actually hear the musical conversation between Miles and the other musicians as it occurred in the studio.”

As I wrote in my article, “Around 3 minutes into the song, when Coltrane’s sax takes a solo, the mono mix has a cool, smooth sound; the stereo mix feels harsher, with reverb and artificial space trying to fill the stereo soundscape. The mono sounds real; the stereo sounds contrived.”

rubber_sou174f04919ba911c69f88f6.jpgFinally, a good example of the difference between mono and stereo mixes can be heard on The Beatles in Mono. (Amazon.com, Amazon UK) Because of the many panning effects – for example, the voice is on the right channel and the drums on the left channel – the early Beatles stereo mixes sound like gimmicks designed to highlight two-channel audio. Not all of their stereo mixes have these panning effects, but many of them do, and the punch of the early Beatles songs comes through much better in mono.

Some other albums worth hearing in mono.

If you like jazz, you are most likely familiar with The Dave Brubeck Quartet’s Time Out. Take Five, the third track on the album, is one of the best known jazz tracks of all time. With just two chords, in a 5/4 time signature, it’s an unexpected hit. The track starts with drums on the left, piano on the right, and the bass and solo instruments mostly in the center. But listen to the mono version: there’s none of that panning trickery to distract you from the music. The musicians are playing together, not on separate channels. The drums and piano are less prominent, but they should be. (Amazon.com, Amazon UK)

The Beach Boys’ Pet Sounds, arguably the pop group’s best album, produced by Brian Wilson, but strongly influenced by Phil Spector’s “wall of sound.” This isn’t my favorite music, but hearing the difference between the two mixes is eye- or ear-opening. (Amazon.com, Amazon UK, iTunes Store)

Pink Floyd’s The Piper at the Gates of Dawn was released in mono in 1967. While their early psychedelic music sounds like it was written for panning stereo effects, the mono mix actually sounds more psychedelic. (Amazon.com, Amazon UK, iTunes Store) Listen to Astronomy Domine or Interstellar Overdrive to hear how the lush sound of early Pink Floyd sounds in mono. You may not find this preferable, but it’s interesting.

The early Rolling Stones albums were released in mono, and there’s some confusion as to when they stopped mixing for mono and started producing “fold down” mono mixes; this is the process of simply taking the existing stereo mix and making a single track version of it by copying it to a mono tape. The consensus seems to be that all the albums up to the 1968 Aftermath were original mono mixes, but some think that Sympathy for the Devil, on the 1968 Beggars Banquet (Amazon.com, Amazon UK, iTunes Store), was originally mixed in mono. It’s interesting to compare that song on the two versions; the hard-to-find mono mix has less stereo trickery with the drums and percussion centered and Jagger’s voice is more prominent. And No Expectations, in mono, has much more of the old blues sound they’re trying to emulate. I’d love to see a box set of early Stones albums in their original mono mixes.

And let me mention a few notable classical recordings in mono that sound great. There’s not the same issue of mono vs. stereo mixes, but with classical music it’s much more about microphone placement and mixing down from what was often three-track recordings.

Glenn Gould’s groundbreaking 1955 recording of Bach’s Goldberg Variations features excellent piano sound. (Amazon.com, Amazon UK, iTunes Store) Wilhelm Kempff’s recordings of Beethoven’s piano sonatas, made between 1951 and 1956 (Amazon.com, Amazon UK), have wonderful sound as well. The Vegh Quartet recording of Beethoven’s string quartets in 1952, and the sound of this set is excellent. (Amazon.com, Amazon UK, iTunes Store) Nathan Milstein’s recording of Bach’s Sonatas and Partitas for Solo Violin is another fine recording with great presence and clear sound. (Amazon.com, Amazon UK, iTunes Store)

There are hundreds of excellent mono recordings of jazz and classical music from the pre-stereo era, and it would be a shame to miss out on them just because they’re in mono. Have a listen to some one-track music, and you may find that two tracks isn’t always better.

Read this article to learn how to rip CDs in mono using iTunes.

Re-Ripping CDs with iTunes

You may occasionally want to re-rip one or more CDs that you own. One of the most common reasons for this is to rip CDs at a higher bit rate than you did back when disk space was more limited.

Wen you do this, you may want to ensure that you don’t lose metadata for the existing files. Not just the names of the tracks, albums and artists, but also information like play counts, artwork and ratings. If you do this carefully, you can ensure that when you re-rip CDs, you keep all the metadata.

The first thing you should know is that, if you rip a CD, and you already have the tracks in your iTunes library, iTunes will alert you to this, asking if you want to replace the existing tracks:

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This is, in fact, what you want to do when re-ripping CDs. When iTunes replaces existing tracks, it only replaces the music. It retains all the other metadata, and it keeps the tracks in any playlists you’ve created. (If you re-rip and add the tracks to your iTunes library anew, then delete the old ones, these tracks will no longer be in playlists, though they will be in smart playlists.) But iTunes can only replace existing tracks if all the metadata matches.

So if you want to re-rip a CD, and have iTunes replace the music, you need to ensure that all the tags – the ones you can change – are the same. These are Name, Album, Artist, Genre, Year, Disc Number, Composer, Grouping, Album Artist and Comments. If any of these are different – if there’s even a comma or different capitalization – iTunes will think the track is different.

When you insert the CD, and examine it in iTunes, you can check the tags, comparing them to the existing files. You can correct any differences manually, or you can use Doug Adams’ Copy Tag Info Tracks to Tracks AppleScript. Read the information on Doug’s site to find out how to use this script.

I find it best to rip CDs by dragging their tracks to a “Temp” playlist; this lets me examine the tracks without having to find them in my iTunes library. If you want to re-rip CDs, I recommend making another playlist with their tracks, then checking that playlist after you rip each CD. You should see the tracks have been replaced. So, if you had tracks at 128 kbps, and you’re re-ripping them at 256 kbps, you’ll see the new bit rate in the playlist.

If you follow this procedure when re-ripping CDs, you’ll find that you save a lot of time: not only do you not have to manually update tags, but you also retain all the metadata that you can’t edit.

In Praise of Mono Recordings

I sit at my desk, listening to Miles Davis playing “‘Round Midnight,” from his 1957 album ‘Round About Midnight. The sound is crystal clear, with each instrument balanced against the rhythm section, as Miles shares the lead with John Coltrane on tenor sax. I’m listening to the original mono mix of this album, and it sounds like the musicians are in my room.

miles-midnight.jpg

Around three minutes into the song, when Coltrane’s sax takes a solo, the mono mix has a cool, smooth sound; the stereo mix feels harsher, with reverb and artificial space trying to fill the stereo soundscape. The mono sounds real; the stereo sounds contrived.

Read the rest of this article in The Loop Magazine.

An Overview of Audio File Formats Supported By iTunes

Every once in a while, I see some very odd comments about audio file formats. I just read a comment to an article about high-resolution files suggesting that that FLAC compresses the dynamic range of files.

I thought it would be useful to discuss the audio formats that iTunes supports (and talk about FLAC as well).

iTunes supports five different audio file formats. You can see them by choosing iTunes > Preferences, clicking the General tab, then clicking Import Settings.

ITunes audio formats

  • AAC Encoder: This default choice compresses files in AAC (Advanced Audio Coding) format. AAC is not, as many people think, a proprietary format created by Apple. It is part of the MP4 standard and can be used by any hardware or software. In the early days of the use of AAC, not all devices supported this format, but now, pretty much every device – both for portable use and for use with a home stereo – can handle AAC.
  • AIFF Encoder: Both AIFF and WAV files encapsulate raw sound data (in PCM, or pulse code modulation, format) from a music CD in file headers so the data can be used on computers. This format is uncompressed, and it takes up a lot of space, around 600–700 MB per disc, or about 10 MB per minute of audio.
  • Apple Lossless Encoder: Apple Lossless is a lossless format that Apple created. It retains all the original musical data while taking up much less space than AIFF. Audio from a CD ripped in Apple Lossless format takes up about 250–400 MB, or around 7 MB per minute, depending on the type of music. (See this article for some real-world examples of the actual amount of compression achieved with Apple Lossless.)
  • MP3 Encoder: Most people are familiar with MP3 files, which were the catalyst for the digital music revolution. MP3 files can play on just about any device or program that handles digital music.
  • WAV Encoder: Like AIFF, WAV is uncompressed, and takes up the same amount of space.

There are a few important things to be aware of with audio formats. First, you can transcode one lossless format to another with no loss of data. This means that you can rip a CD to WAV, convert it to AIFF, then to Apple Lossless, then back to WAV, and you’ll have the exact same data – and the same music, at the same quality – as the original. However, if you rip a CD to AAC or MP3, then convert those files to a lossless format, such as Apple Lossless or WAV, you wan’t have the exact same quality; you’ll simply have a larger file at the quality of the AAC or MP3 file.

I said above that I would discuss FLAC. This is an open-source format, and stands for the Free Lossless Audio Codec. It is equivalent to Apple Lossless, and converting between the two causes no loss in quality. And, to address the comment I mentioned earlier, neither FLAC nor Apple Lossless have any effect on the dynamic range (the difference between the softest and loudest volume) of music. (You may want to know why iTunes doesn’t support FLAC.)

It’s worth noting that in late 2011, Apple released the Apple Lossless format specifications as open source. While this format was not widely used in the past, notably on Web sites selling digital music, this has changed a lot since then, as not only will more sites sell files in this format, but more software and hardware offer support as well.

Some people claim that WAV files “sound better” than lossless compressed files (Apple Lossless or FLAC). This may have been the case years ago, when the actual processing of decompressing the lossless files may have caused problems, but they are bit perfect replicas of each other, so it’s simply impossible for them to sound different.

For this reason, if you want to maximal quality, Apple Lossless is exactly the same as WAV or AIFF, and the characteristics of Apple Lossless offer more flexibility in tagging files (editing their metadata) and adding album art. WAV and AIFF files notable have limitations regarding tags. (In this article, I speculate on when Apple may start selling files in Apple Lossless format on the iTunes Store.)

It’s also useful to know that if you are interested in high-resolution audio, Apple Lossless can handle such formats, as can FLAC. So if you buy high-resolution music in FLAC format, you can convert it to Apple Lossless to better manage the files in iTunes (if you want to use iTunes). I recommend using the free XLD for converting audio files.

Note: iTunes can also play a number of other audio formats that QuickTime supports. This Wikipedia article gives more details. Not all of these formats are supported very well for tagging. iTunes can also play Audible files, in several different bit rates.


Learn how to get the most out of iTunes with my ebook, Take Control of iTunes 12:



DVD Review: Twelfth Night by Shakespeare’s Globe

51Aaud8H+OL.jpg Buy from Amazon UK

Shakespeare’s Twelfth Night, or What You Will, which dates from the fecund year of 1601, just after Hamlet, is one of the bard’s plays about confusion. A pair of twins is separated in a shipwreck. One, a woman, dresses as a man, and the two are reunited at the end of the play. But between the separation and reunion, much happens, all having to do with wooing and love.

The idea of separated twins is something Shakespeare used in the early Comedy of Errors. In that play, the twins were separated at birth. And the woman dressing as a man was essential in As You Like It, which Shakespeare wrote just a year or two earlier, where Rosalind had to hide her femininity during her travels in the Forest of Arden.

The Elizabethan stage did not allow women on stage, so any time there was cross-dressing, it created double ambiguity: a man playing a woman dressed as a man; the audience certainly understood that two-pronged change. In this production – described as an Original Practices performance – the Globe Theatre company performs Twelfth Night with all men, bringing back the way gender was treated in the early 17th century. Johnny Flynn plays Viola (also known as Cesario, creating yet another layer of dissimulation), Mark Rylance is Olivia, and Paul Chahidi plays Maria, Olivia’s maid.

The play begins with Viola’s explanation for why she dresses as a man. She hear’s of Orsino’s love for Olivia, and realizes that, if she were disguised as a man, she might serve as matchmaker, and “might not be delivered to the world.”

The rest of the play revolves around the confusion that arises when Viola falls in love with Orsino, and when, as courier to Olivia sending messages of Orsino’s love for the latter, Olivia becomes smitten with Viola. A side plot involves Malvolio, who has the beguine for Olivia. Maria, Olivia’s maid, together with two comic characters, Sir Toby Belch (a Falstaff-like character) and Sir Andrew, are involved in a ploy to trick Malvolio and make him think he is loved.

In the end, Viola’s brother Sebastian returns, and there is confusion with Olivia who marries Sebastian, Viola’s twin brother, then sees Viola who knows nothing of the marriage. But all ends well, as the two loving couples unite.

This is a lively production, with wonderful comic timing, with entrances and exits making scenes segue with no interruption. The Globe’s approach to have almost no sets – other than the occasional table or bench – makes the stage very fluid, and the actors all bubble with humor throughout.

The performance revolves around Mark Rylance’s Olivia, who has a strong stage presence throughout. Rylance plays a role that is subtle and powerful, yet I had a bit of difficulty suspending belief. Olivia should be fairly young, yet Rylance is in his 50s. The voice he uses – a slight falsetto – makes him sound like an elderly woman. While his acting is nearly perfect from a textbook point of view, I just didn’t find his characterization believable enough.

Nevertheless, there are certain points in the play when Rylance’s Olivia achieves perfection. Certain gestures, glances, and stuttering words give the character a life that no soliloquy could equal. The look on Olivia’s face when he suggests that Malvolio – clearly a trifle mad – go to bed, and the latter replies, “To bed! ay, sweet-heart, and I’ll come to thee,” is memorable.

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Steven Fry (Malvolio) and Mark Rylance (Olivia).

As for Malvolio, Steven Fry gives a powerful performance of this somewhat gauche man who is full of himself, then thinks himself loved by Olivia. The scene in the garden where Malvolio reads the forged letter from Olivia – really written by Maria – is a masterpiece, as Fry falls into the character with ease and grace.

The rest of the cast is very good, if not excellent. While I found Johnny Flynn unconvincing as Viola, I thought Colin Hurley, as Sir Toby Belch, and Roger Lloyd Pack, as Sir Andrew Aguecheck were a wonderful comic duo.

This is a boisterous performance, and, aside from my reservations about Rylance, is delightful and effective. This production is currently on Broadway; the DVD here is a film of a production at the Globe Theatre in London from September, 2012. If you can’t see it live, then this DVD – with a slightly different cast from the Broadway production – is the next best thing. The DVD is not yet available in the US, but if you order it from Amazon UK, it is in NTSC format, and has no region code, and is therefore compatible with US DVD players.

Read a review of the current Broadway production in the New York Review of Books.

Here’s an excerpt from the DVD:

Andrei Tarkovsky’s Stalker, the Great Existentialist Science Fiction Film

It’d been years since I had seen Stalker, Andrei Tarkovsky’s excellent science fiction film, and I watched it last night. For a science fiction movie, Stalker is certainly an oddity. Released in 1979, loosely based on the short novel Roadside Picnic by Arkady and Boris Strugatsky, and directed by Tarkovsky, the masterful Russian director who lived too short a life, it tells the tale of a part of Russia that has been visited by an odd event. It may have been a meteorite that fell, or it may have been an alien visitation. But the event created the Zone, a dangerous area which was cordoned off by the police, and where few could go.

A Stalker – a sort of guide who takes people through the traps in the Zone – meets up with two men who want to visit the Room, a place where wishes come true. One is a Professor, a man of reason, and the other a writer, a man of inspiration. The Stalker is a man of belief. Very little happens in the movie, which lasts more than 2 1/2 hours, except for their trip to the Room, and their discovery of what they want from it.

Stalker is science fiction only in its premise; there are no aliens, no magic, nothing that would be noticed as science fiction. It is a slow movie; very little happens, and some of the shots are several minutes long. It’s a science fiction movie as it would have been written by Samuel Beckett. Yet it’s a brilliant existential examination of the desires of men and women.



At first, the film begins in sepia-toned black-and-white, but once the three characters reach the Zone, the film changes to color. Just as Oz was in color, so was the Zone. The Zone is located outside an industrialized city, and is full of the detritus of modernity. Yet Tarkovsky films these banal, cast-off items with the plastic beauty that he showed in all his films. Some of the shots are breathtakingly haunting, yet there is nothing special in them.

In a prescient shot, near the end of the movie, the Stalker can be seen returning to his home with his wife and daughter, and, across the river, a nuclear power plant is seen. The Zone could be the area surrounding Chernobyl. There is no devastation, simply signs of nature taking over some human artefacts.

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Apple’s Touch ID: I Want It Everywhere

As I check my iPhone from time to time during the day, I’m occasionally reminded of how efficient Touch ID is. Instead of typing a passcode, my fingerprint unlocks my phone. Granted, the passcode is only four digits, but with Touch ID, I’ve set my phone to lock immediately, instead of having the security risk of leaving a few minutes before it locks. If I lose the phone, there’s no longer a several minute window for someone to access it.

I notice Touch ID more when I use my iPad, because that device does require a passcode. I use the iPad much less, though, and it’s less of a bother. And I can’t forget my Macs; I have them set to lock and request a password when my screen saver goes on, after just a few minutes of idle time. That actually bothers me more than the iPad, since I have to type my password on a keyboard.

So I hope that Apple will expand Touch ID: first to third-party developers of iOS apps, then to the iPad and iPod touch, then, hopefully, to the Mac. It would be great with the iOS apps I use which are password- or passcode-protected: the two I use most are 1Password and Dropbox, though there are others that occasionally ask for a password. I’d like to be able to get access to my passwords on 1Password with a touch, instead of entering my (admittedly strong) password, as it’s just annoying, now that I know there’s a better way.

I also hope Apple brings Touch ID to the Mac. I can imagine a Magic Mouse and/or Magic Trackpad with a section to use with Touch ID. It would need a special sensor, the same kind that’s on the iPhone, so it most likely could not work with the entire touch surface. But looking at my Magic Trackpad, I can see that if it were in a corner, it would be usable, and not get in the way. (The same would be the case on a laptop.)

As Apple often brings out a new technology first on the iPhone, then moves it to other iOS devices, or on the MacBook Air, before bringing it to other Macs, it’s obvious that they’re planning on rolling out this technology at least to the iPad in the future. Hopefully this will coincide with an SDK for third-party apps, and perhaps availability on the Mac as well. Touch ID is one of Apple’s technologies that saves a lot of time, and makes life easier. I want it on all my devices.

Update: Shawn King, of Your Mac Life, suggested on Twitter that one might use an iPhone to unlock a Mac. There could be some sort of “remote” app on the iPhone, which would let you then unlock your Mac. This might take longer, though, because you’d need to unlock the iPhone, launch the app, then unlock the Mac. But it would mean that the Touch ID would be able to interface with other hardware.

Is Blu-Ray Audio the Next Big Thing for Audiophiles?

230px-Blu-ray_Disc.svg.pngIf you hang around in audiophile circles, you may have seen that the latest way to deliver music is Blu-Ray audio, or BD-A (BD, or Blu-Ray disc, is the standard abbreviation for such a disc). These discs can only be read in Blu-Ray players, but can offer high-resolution audio, in both stereo and surround mixes, up to 24-bit 192 kHz. The BD-A is seen as a replacement for SACDs, which never really took off in the market, despite their having even higher resolution audio.

If you follow this blog, you’ve certain/y seen that I’m more interested in music than sound; I don’t have the audiophile itch to try and get better and better sound through expensive, incremental improvements to my listening equipment. I have a very good stereo, very good headphones, and, while I may splurge in the future for a pair of Grados, there’s no reason for me to spend more.

I’m not sold on high-resolution audio, but I can understand that some people may be. Whether it’s simply a placebo effect, or whether the music actually does sound better, I can’t say. Perhaps you need a stereo that’s much more expensive than mine to hear the difference.

But BD-A is simply the latest step in marketing audio to those who are willing to pay more. Writing at MusicWeb International, Dan Morgan asks whether it’s a gimmick or game changer. He outlines the history of BD-A, and points out that it’s another step in the format wars, with different record labels choosing different ways to present the audio.

The concept of BD-A is interesting. Many such discs not only let you listen to high-resolution files on your stereo system, but also let you copy them from the disc to your computer. However, this copy process is not simple. You need to find your Blu-Ray player’s IP address and connect to it over a network from a computer. While this is not problem for me, this isn’t a simple task for many users. Part of the reason for this process is the copy protection on Blu-Ray discs; you can’t simply pop a Blu-Ray in a computer’s drive and copy its contents (though there are apps you can buy that will crack the copy protection and let you copy movies).

Also, BD-As have different types of menus, and require that you have a TV set connected to your Blu-Ray drive. Many music listeners don’t have this; they may have a listening room with just a stereo, making it onerous to play BD-As (they need to buy a TV set just to be able to operate the BD-As). Compare this to CDs: you can play any CD on any CD (or DVD or Blu-Ray player), navigating only from the device’s display. This is essentially because the Red Book CD format was agreed on and universally accepted, ensuring that all CDs would be playable on all players. While there is a more-or-less accepted standard for movies on Blu-Ray discs, this is not the case for Blu-Ray audio.

And this, in my opinion, is why BD-A will fail. By making these discs complicated to operate, and by having vastly different systems on different labels, only the most dedicated users will bother buying more than a couple. It’s not enough to provide music in good quality; the listening process has to be user-friendly. BD-As often look like they’re designed for experienced computer users, and, given that the average age of the classical music market is that of people who didn’t grow up with computers, many users will be frustrated.

The music industry will continue trying to come up with new formats to get us to buy our favorite music again and again. There are only so many times that people will do this in a lifetime. When we moved to CD, we got an easier-to-use product, with arguably better quality sound. (Certainly, some early CDs sounded terrible, but not having pops and clicks from LPs makes a huge difference.) Self-professed audiophiles will buy BD-As, but I can’t see them catching on, unless an international standard is developed for them. And it’s unlikely that will happen any time soon.

New Release: Miles Davis, The Original Mono Recordings

51jghBW5KkL._SL500_AA280_.jpg I spotted a recent release that will interest many jazz fans: a 9-CD set of the original mono recordings of Miles Davis on Columbia Records. It contains the following albums:

  • ‘Round About Midnight
  • Miles Ahead
  • Milestones
  • Jazz Track
  • Porgy And Bess
  • Kind Of Blue
  • Sketches Of Spain
  • Someday My Prince Will Come
  • Miles And Monk At Newport

By from Amazon.com, Amazon UK, iTunes Store.

As you may know, for these albums, as for other music of the time, the original mixes were made in mono, with the stereo mixes being often rushed out afterwards. Since very few people had stereo playback equipment, mono was the standard. Other artists have released similar sets in recent years: Bob Dylan (Amazon.com, Amazon UK) and The Beatles (Amazon.com, Amazon UK).

It’s interesting to hear these mixes, because they do often have a more refined sound than the stereo mixes (though many stereo remasters are far superior to the original stereo mixes). It’s also a bit of nostalgia: of a time when a record player was a simple device; when you didn’t worry about bit rates and dither; when all that mattered was the music.

If you’re a fan of these artists, you’ll want these releases to compare with the stereo albums you own. You’ll find that, in some cases, the tracks are from different takes, and you’ll certainly find that the music sounds different, because of the way the instruments are prioritized on a one-channel mix.

iTunes Match and Mastered for iTunes: Which Tracks Do You Get When Matching CDs?

002.pngApple touts its Mastered for iTunes tracks on the iTunes Store as “Music as the artist and sound engineer intended.” Mastered for iTunes tracks are therefore supposed to sound better than tracks you rip from CDs. The basic goal of Mastered for iTunes is to provide a direct downsampling of music from 24-bit, 96 kHz files to 256 kbps AAC files, rather than having a first downsampling to the CD format (16-bit, 44.1 kHz), then another conversion to AAC.

Whether or not the difference is audible is debatable; at a minimum, the conversion from higher quality masters can be seen as producing fewer “rounding errors,” though it’s a bit more complicated than that.[1] Also, the Mastered for iTunes process requires that record labels make some slight changes to their files, notably to avoid clipping,[2] but it allows them to create different masters for the iTunes Store than for CDs, if they so desire. (Yet as you’ll see below, I found much more clipping on certain Mastered for iTunes files than CD rips or older purchased files.)

I was wondering what link exists between Mastered for iTunes files and iTunes Match. If you rip a CD, and match it, will you get Mastered for iTunes files, which are currently sold on the iTunes Store (if available), or will you get equivalents of the CD’s ripped files? Since Apple says there’s a difference between the two, how do they handle this?

When you purchase a Mastered for iTunes file, there’s information in the file telling you this. You can see this by selecting a file, pressing Command-I (on Mac) or Control-I (on Windows, then viewing the Summary tab. The Mastered for iTunes badge below shows you that you have premium files.

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If you rip a CD, match it, then download one of the files from the cloud, you don’t ever see the Mastered for iTunes badge. I have a handful of CDs for which only Mastered for iTunes files are available from the iTunes Store (these are new releases where labels only provide files for this format). I added them to my iTunes Match account, matched them, deleted my originals, then downloaded the matched files. I compared them with my original rips (using the methods described below), and saw that these files were not the same; I was clearly getting the Mastered for iTunes files from iTunes Match. But the files don’t display the Mastered for iTunes badge.

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