Inside the iPod, Past and Present
We mentioned the iPod Shuffle dissection a couple of days ago. Reader UtahSaint writes "Electronic Design have got a neat little article giving non-Apple employees
an insight into the makings of the original iPod and the revisions made (on a technical level) with the 2nd and 3rd generation iPods. The third-generation iPod contains two power-management chips from Royal Philips Electronics, a TEA1211 and a PCF50605. The TEA1211 is a dc-dc converter that can switch automatically between step-down and step-up operation in response to changing input voltage. The PCF50605, a single-chip power-management unit (PMU), can adjust power-supply voltages to the lowest thresholds needed for functions in a particular power domain." And finally, sammykrupa writes "PC Mag has a great review of Apple's iPod Shuffle. It covers the quality of the audio output saying that it is has dead-flat frequency response, less harmonic distortion, and most notably, better bass response than its bigger siblings. The older iPods, especially the Mini, have been rightfully criticized for being somewhat deficient in bass, and although the bigger players have flat frequency response, they have trouble sustaining big bass notes."
iPod Shuffe, no wireless. Less space than a regular iPod. Lame.
The older iPods, especially the Mini, have been rightfully criticized for being somewhat deficient in bass, and although the bigger players have flat frequency response, they have trouble sustaining big bass notes.
The iPod is designed to take with you and hear music on the bus, or while jogging - with headphones. Does it really matter how good the bass is if you listen to it with headphones anyway? I think not.
I just don't trust anything that bleeds for five days and doesn't die.
"Eek! How gross! I'm not disecting that iPod!"
The linked article is interesting from a technical standpoint, but it's also pretty dry--after the lead paragraph, the author doesn't really talk about the sweat and tears behind the scenes. Fortunately, the Times Magazine ran a story (reg-free link) a couple years ago about the human side of iPod, from conception to birth. Turns out the iPod didn't spring whole from the tip of Steve Jobs' magical wang. The article's worth a read if you're into this kind of thing.
The point is that the old Ipod headphone preamps didnt't have enough juice to power most headphones properly. What is the hardest frequency to reproduce? The bass. So, even with headphones and the eq turned up, the bass didn't sound as full and punchy as it should have. This was probably the worst flaw sound quality wise. The AAC or MP3 encoding at 128K are virtually indistinguishable from CDs for most listeners, but most listeners can hear the lack of bass. Its like something is missing.
is a dc-dc converter that can switch automatically between step-down and step-up operation in response to changing input voltage.
Without examining the circuit myself, I could imagine that when the batteries fall below Vcc that the converter switches from step down to step-up to provide additional play time, until the batteries are completely drained.
Maybe someone can confirm/deny this.
Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
I had a 3rd gen, now I have a 4th gen. Both drove my Grado SR-60 headphones (think Radar from Mash) just fine. In fact- they do a noticeably better job driving them at low frequency than my Powerbook.
Any problems with low frequency response probably have something to do with the fact that, despite the Steve Reality Distortion Field, you cannot get good low-frequency response in a tiny little earplug. You can put marketspeak on your website till the cows come home about Neodymium magnets make 'em better- they're still just tiny earplug speakers.
Please help metamoderate.
I don't need a massive capacity player, I just want to get my top 100/200 songs ever and carry them with me for those times I'm out.
Not only is it diminuitive, great value (probably because of the lack of screen, but the 1GB Shuffle is £10 cheaper than a 512MB Sony, and £30 cheaper than a 1GB Creative in the UK). but it is actually pretty damn good.
Will this be the first Apple hardware I ever buy? Where will it end?!
Not directly involving the iPod, but this week's I Cringely has a discussion of how the new Mac Mini may be a move by Apple to get into the movie distribution business, trying to repeat with video the success they've had with the iPod for audio. He has some interesting speculation on synergy from Pixar (which Jobs also controls) and Sony ("...you don't get the head of Sony at your event just to sell camcorders"). Well worth a read.
"Prepare for the worst - hope for the best."
With all of the iPod Shuffle discussion and disections, I am surprised to see that no one has commented on the extra lines in the USB connector.
If you look in the connector, there are five small lines between the main USB lines. (BTW, these are not included in the Shuffle's dock.) There is also NO USB logo's in any of the packaging or documentation.
It looks like Apple may have some secret features up their sleeves.
"Loud enough to cause hearing damange" is a *feature*.
ZOMG I WOULD LOVE TO KNOW ABOUT YOUR FEELINGS ON MACINTOSH VERSUS WINDOWS, VI VERSUS EMACS, AND HOW YOU'RE NOT A DORK
"La perfection est atteinte non quand il ne reste rien à ajouter, mais quand il ne reste rien à enlever." (Perfection is achieved, not when you have nothing more to add, but when you have nothing more to take away).
-- Antoine St. Exupery (1900-1994)
No, form factor is incredibly important. Or do you lug around a PC with Augidy 2 audio inside, and a large UPS, just to get more functionality?
Oddly enough, the iPod Shuffle is cheaper by a mile in the UK. The competitors have done simple $=£ translations, and Apple haven't. Unless you want to listen to idiotic radio shows on radio on your MP3 Player, or record yourself having a fap, the iPod Shuffle is the best value on the market. In the UK at least.
I've been listening to iPod fanboys rant about their players' 'superior sound quality' for years. I always replied that the player doesn't really affect the quality of the sound, it's all about the headphones/speakers and recording/compression. Was I wrong? If it's just playing a digital file (which will never wear like a record, and will always be read identically), could one player actually output noticeably different sound than another?
My guess is that even if it could, it wouldn't be by very much. Certainly not enough to influence your purchasing decision, eh?
I've compared an .aiff file played back through my computer's rackmounted audio interface (made by MOTU, for those who care, and also connected to the Soundcraft desk) and the same track played back from the iPod. I don't hear a significant difference in bass response. The people who complain about bass must be using 'phones with impedance that doesn't agree with the iPod's headphone jack.
"Clean up the air and treat the animals fair" - Captain Beefheart
Dead flat!? I dont believe it, the Telefunken at SNB (a mastering studio in montreal) is the flatest piece of equipment you might come accross and this baby isn't perfect flat, it cost 85000$ originally and required over 50000$ modification to achieve such audio performance.
Dead-flat? I really doubt it, then again PC mag made the call, not Audio-Media, Post or Mix...
Computer mags and websites should sincerly refrain from judging audio... because when they do, a million techno morons go down the street speading bullshit like they know what they talk about, they just repeat lies and since no one even them knows what they are talking about and those geeks have techno credits in other peoples mind, other people start spreading the same bullshit but with the telephone game kicking in (story gets modified each time it is told...), sentences changed to "my friend who studied programming told me that the audio performance of...".
Doesn't it make you feel good to know that our freedoms are protected by politicans, lawyers and journalists.
The terminology surrounding the sound quality is quite confusing. Namely, suggesting that it is flat but has better bass response or that it is flat but has trouble "sustaining" big bass notes hardly makes sense.
Flat is flat. Either the old players are not flat and deficient in the low frequency spectrum, or the new player is not flat and has some kind of boost. The fact is that when most people hear flat they think, "Where's the bass?"
The article says nothing of the test data, equipment or methodology used to determine just how flat the frequency response is and "critical listening" on some mystery monitors hardly counts as valid.
I suspect that your headphone assertion is correct.
~Someday, I hope to be an aspiring author.
You forgot one crucial piece in the first part of that: the amplifier stages.
The crappiest set of speakers and headphones will sound much better through a decent preamp and amplifier than the most expensive speakers and headphones will sound through a $19.99, underpowered clearance special.
If, in fact, all media players have identical, real-world response, then you'd be correct. This is seldom the case, though. A lot of manufacturers skimp on the preamp and amplifier stages in audio equipment to save a few bucks because, after all, digital is digital.
There's so little difference between politics and jihad lately...
There can most certainly be sound quality differences amongst various players. The DAC (digital to analog converter) and the amplifier itself both contribute greatly to how well the output sounds.
Most every portable player anymore uses an integrated chip to perform the MP3 playback and amplification and many players from different brands will use the same chips. The implementation of the circuitry however can still make a significant difference.
But for the really discerning audiophiles, the only way to get decent sound from a portable player is to use an external headphone amp that utilises higher quality components and generally operates at higher supply voltages which helps provide more generous amplifier headroom. There really is a difference and you can hear it readily with better quality headphones.
You mean the printed circuit boards? Good point.
Sincerely,
Pan Tarhei Hosé, PhD.
"Homo sum et cogito ergo odi profanum vulgus et libido."
From the review of the shuffle:
Are we supposed to CARE how you use random play? How you use random play is a personal decision, and should NOT factor into the review or the score you give the product. You might play it that way - others might not.The review should have been, not on the way they would prefer to use the device, but how well the device works within the parameters it was designed for. That is, it was designed as a small-form random-play digital music player, and it does very well within those parameters.
This would be like reviewing a Kia and mentioning "We tend to drive luxury vehicles like a BMW, and wished that this car was a luxury car instead of an econobox," and scoring it down simply because it wasn't a BMW.
You can probably come close, but beating it is going to be pretty hard. To match the size is going to take a mini-itx motherboard ($175 or so for an M10000), a 2.5" harddrive ($75 or so for 40G), optical drive ($100 or so for a dvd/cdrw), ram ($40 for 256M). I've now spent $390, still needing a case/PSU (and still larger, albiet only slightly). This is going to be *well* short of the Mac mini in performance, (especially at graphics - unichrome is nowhere near a radeon 9200 mobility), and you still don't get OSX.
:-)
If your wife wants a cute little Mac, let her have it
The Matrix is going down for reboot now! Stopping reality: OK. The system is halted.
Possible secret features:
..now thats insanely great!
solder resistor between lines 2 & 3 - Shuffle grows full color OLED touch-screen!
open Shuffle and cover circuit board with cream cheese, insert in USB slot - $500 USD springs from CD drive!
stick bent paperclip in headphone jack - Steve Jobs comes to your home and cleans your car!
air and light and time and space
In the small print at the bottom of Apple's iPod shuffle page:
#2. Do not eat iPod shuffle.
It's now off the site, but still exists in Google cache: http://64.233.161.104/search?q=cache:z3uW4DuVNvoJ: www.apple.com/ipodshuffle/+ipod+shuffle&hl=en
Nah, don't return it. Instead, bitch about it on slashdot. I'm sure that will fix the problem.
I thought it was:
1st gen: Buttons around wheel, mechanical wheel
2nd gen: Buttons around wheel, touch wheel
3rd gen: Separate touch buttons under screen, touch wheel
4th gen: Click wheel
...and that's all there is to it.
I really have got to say, I love my iPod Shuffle. Although I played with the idea of selling it on eBay for a quick buck, the $10 was worth it to me to have something this chic. I never expected it that small or light, and it's so simple. I never looked at the screen of my iTunes, and in my car I put it on shuffle and never manually change the song. It works well for me but what's amazing is how popular the thing has been. Just like their big brothers they are getting scooped up left and right. You have to admire a company that can take a 4 year old player, put it in a nice case and have it back ordered for 4 weeks. Now if they would just release a product to compete with Microsoft's Media Center.
Grease & Counterbalance
Apparently the Shuffle may not be immediately compatible with linux tools already available. Gnupod apparently has trouble copying music to the shuffle.
According to the author of foo_pod for FooBar2000, there's the usual iTunesDB database, but also a new one, called iTunesSD. They haven't been able to completely reverse-engineer this one yet. It turns out it isn't sufficient to simply write to the iTunesDB database -- songs won't play.
Searches on Google show nothing about the iTunesSD database.
I'm a mastering engineer and hang out on mastering web boards, and the iPod came up in conversation.
FWIW, a tech heavyweight (trying to remember if it was Bruno Putzeys?) said they'd measured the iPod and got a perfect 10K tone out of the bugger with virtually unmeasurable sidebands.
NOT easy. That outperforms a heck of a lot of high-quality CD players, never mind mp3 portables. iPods apparently have very good tech if you know how to measure them. Jitter is what that 10K tone test measures, and it performed very, very well, I'm told.
don't do it, it's like a drug addiction...you start with the ipod, and it's great...you get a great buzz, and dont feel any harm...next you decide to see what the OSX experience is all about, so you grab a Mac Mini (with additional RAM, of course)... next thing you know, you're living in a shabby flat in the cheapest part of town with no utilities (save electricity and internet) to help pay for your dual g5 tower of doom. it's a slippery slope.
"Good night, good work, sleep well, I'll most likely kill you in the morning." - Dread Pirate Roberts
Nope, look at the various images at http://en.wikipedia.org/wiki/IPod 1st : 4 buttons under screen and wheel below that, 2nd : 4 curved buttons around the wheel, 3rd : 4 buttons under screen and wheel below that, 4th : 4 spots on wheel that act like buttons.
I know it's heresy to say it in Slashdot, but Wikipedia is wrong (again). The picture is mislabeled. However, the text is correct when it says, "The 1G iPod featured four buttons - Menu, Play/Pause, Back, and Forward - arranged around the circumference of the scroll wheel."
World's tallest building rises in the desert
Grado Labs SR60 and SR80. Both modles can be foundd sub 100 dollars and are some of the finest listening on the planet IMHO.
Could it be it was done because Apple engineers are sick of hearing someone with rediculus bass driving down the road when they are trying to sleep?
Maybe they did it so they don't have to hear:
thud, thud thud..
every time someone with an iPod comes walking.
If I were a car manufacturer... that would be my motivation for better soundproofing. To stop people from being so annoying.
(it's always sounds like the same damn song too doesn't it?)
I do not buy that missing out on low and high end thing either
Look at the chart, it's all there - that's how our ears work. We aren't good at hearing lo and hi frequencies, so if we listen to material with a flat response, we perceive the 1kHz-4kHz range as being "louder".
because then we should be going to live performances with EQ-adjustable ears, which we don't.
At live performances, we have engineers whose job it is to equalise the performance material both according to the properties of the venue, and the frequency range of the music itself. Live sound is a very different case to portable audio and the two aren't really comparable.
Besides, most music does happen within that 1kHz-4kHz range
I'm sorry, but that's completely wrong. Vocals fall into that range, as do the fundamentals and initial harmonics of a few instruments, but since that range is relatively small (the best of us can hear everything between 20Hz and 22kHz, as well as the fact that frequencies outside our audible range can combine with those that are within range and have a very audible effect), there is more than enough material falling outside that range for us to palm it off as "accompaniment". Think about your average band setup - vocals, guitar, bass guitar, drums. The guitar will spend some time in the lo freq ranges, the bass will be there 100% of the time, and the kick drum likewise. Above 4kHz we've got the rest of the guitar work, and most of the drum kit. Try setting up a graphic EQ in the music player of your choice, attenuate everything outside 1k-4k and see how it sounds. Now come back and tell me that most music "happens within that range" it's simply not true.
Music does sounds livelier and closer to the source without EQ
A very broad and naiive statement, and again one that is completely untrue. Do you think when you listen to your favourite album that no EQ has gone into the production of it all? By the time sounds hit the recording medium, they'll have gone through at least two EQ processors, and that's before mastering. At the user end, true, most people see a GEQ and twiggle around with the sliders and then realise "Hey, I've cocked it all up", but if you use it properly and actively pick out frequency ranges in the material you're listening to and adjust accordingly (minor adjustments, nothing ridiculous), you can very effectively tune your setup to your own personal tastes, making tracks sound a lot livelier.
- Syncs with iTunes
- Cost
- Battery life
- Ogg (Vorbis and FLAC) support)
- Usability (easy access to "shuffle play" function)
- Expandable storage (SD or CF)
- Does NOT support Windows Media
- Extra features like voice recording, radio, etc.
- Low size/weight
As you can see, only iPods satisfy priority 1, and the Shuffle satisfies priorities 2, 3, 5, 7 and 9 better than just about anything else as well. The only other player that comes close to competing, for me, is the Frontier Labs NexIA -- it uses CF cards and has zero internal storage, so it satisfies priorities ~2, 3, ~5, 6, 7(?), 8, and ~9 (the ~ means that it's okay, but not as good as the Shuffle). It's not quite good enough, though, since it doesn't sync with iTunes.Now, if the NexIA supported Ogg that would be enough to beat the Shuffle, but I've emailed the company about it and the strongest answer I've managed to get is "maybe eventually." Contrast this with the strong possibility that Tiger's iTunes will support it (which means the iPod should as well), and there's no longer any doubt -- the Shuffle is the clear winner.
It's kind of sad, really, because I'd like to have removable storage, but being able to use the thing is more important.
"[Regarding the 'cloud,'] ownership was what made America different than Russia." -- Woz
Since when is PCMag an audiophile magazine? I'm no audiophile either, but the last thing I would have thought about my mini is that it had poor bass response. If anything, when listening with my headphones (admittedly inexpensive, but well rated Koss phones) there might be a bit too much bass, but I blame that on the headphones, not the mini.
In any case, mostly I listen, not via headphones, but via line-out hooked up to the car stereo. My car stereo isn't great and the car listening environment is inherently sucky, but it doesn't suck with the iPod any more than with CD. And that's my glowing review of the iPod mini.
--- What?
That's silly, really, since Apple's the one that designed the UI. Synaptics had nothing to do with it. I'm sure one major problem of Apple's was beating the "simplicity" concept into the Synaptics engineer's heads.
One thing Cringely forgot is that people love to download past episodes of TV shows and watch them again. I do that all the time with BitTorrent.
I'm sure there'd be a subset of people willing to buy the current season of 24, Lost, Housewives, or American Idol and play it on their TV anytime - and burn it to disc.
HD Movies? Who cares. Today's TV shows? Sure! At a dollar an episode, why the heck not? It comes out to be cheaper than the DVD. Fans'll buy the DVD anyway, because of the extras.
Who knows whether this'll happen or not. But the box is just sitting there, waiting to be plugged into your TV.
One thing I liked about the iPod mini over my Rio Volt MP3 CD player is - besides the fact that it fits in a pocket - power management. Amazingly, the Volt would crash if you plugged in the DC power cord, so you'd have to restart the player. When I plug in the DC power cord into my iPod, on the other hand, the power indicator icon changes, and that's all -- the audio still plays smoothly, no crashing involved. The iPod just works.
Didn't you read Apple's site on the iPod? It said specifically, "Do not eat iPod Shuffle."
It's OK! I'm a limo driver!