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iPod Photo: Poor Sound Quality - Updates

As most of us who have bought the iPod Photo already know, the sound quality IS FLAWED. The distorsion (or background crackling) of high frequency/high output sound (such as piano, high output electric guitar & some deep bass output - however the vocals seem to be fine) is there and something needs to be done about it. Some good examples of where this kind of problem occurs, from what I have found are: Radiohead (most of the OK Computer album), The Hives (the iPod Photo cannot seem to cope with their loud distorted guitar style & very high output), and Incubus (a lot of Morning View). Some people who are still using the tinny, lacklustre stock earbuds, or just don't listen to their music carefully enough, or listen niavely, may still not recognise this.

I refuse to let this issue drop, as I have spent good money on what should be, a technically flawless sound player. I do like this player though (mine is 60GB). The features are good, the photo element is excellent, the 60GB storage is unrivalled, but the main function of the player, to play music, is not good for this one issue. It is so disappointing considering Apple have obviously overlooked this issue (or simply let it slip by thinking nobody would notice), for what is otherwise an excellent piece of equipment.

I record all my music on iTunes, using the MP3 encoder. Some people think the MP3 encoder in iTunes is poor, but it is as good as most. It is all ripped at 224kbps VBR. I use Shure E2c earphones, which are also excellent, and by far the best value for money if you're looking for a warm tone & deep bass in your sound. The step up in price to the Shure E3c might be worth it if you prefer a more detailed, but possibly colder sound.

All that considered, there is absolutely no reason why the sound should be poor on my iPod Photo (when it is fine on the iPod Mini, and using Audio software on my PC), apart from there being a hardware/software glitch. There simply must be. Either that, or something in the sound has been compromised to accomodate the photo elements or colour screen.

I have sent an e-mail to Apple regarding all this, and will hopefully hear from them soon about what is going to be done to resolve this. I will keep this post updated as and when I hear news from them. I also have a case number in motion with their customer services department, and they cannot ignore this anymore.

Something must be done! Redeem yourselves, Apple!

Posted on Apr 10, 2005 10:29 PM

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348 replies

Apr 11, 2005 4:22 AM in response to Alistair Hart

It doesn't make a difference how loud I listen to it, it does the same at half volume or max volume. It is not an issue with the volume, I'm certain of that. Even if it were a problem with the volume, it shouldn't make a difference, and this, again, would not be good enough. That rumour you heard about it sounding better at max volume is nonsense anyway. If anything it would be worse, but like I said, the volume the music is played through the iPod Photo should not be an issue.

If you have an iPod Photo and you listen carefully enough, or you have a musically trained ear, you would definitely notice this problem. Listen for that faint crackling/distortion at certain points in high output parts of songs.

Apr 11, 2005 4:36 AM in response to Johnny Wood

yes i know what distortion and clipping are - i don't hear them.

anyway perhaps this website:
http://www.dapreview.net/content.php?article.133
has a solution that will work for you, it's at least worth a try.

here's a sample:

"All mp3 files have a default volume tag of around 95 to 105dB (decibels - a unit of loudness). When the iPod plays at this output volume, distortion does not occur. When you boost the iPod's bass however, with the equalizer, you are increasing the volume of the lower frequencies past this value (in order to make them more prominent amongst the other frequencies of the sound), and this, in turn, causes clipping and distortion. Basically, the iPod's amp is trying to output a volume that is greater than its inbuilt volume limit - so it serves crackling. By using MP3Gain to reduce the volume tag of your mp3 files to around 89dB, we can leave some headroom to further boost some frequencies without overdriving the iPod's amplifier."

"For example: if you boost the 60Hz frequency (low bass) by around 10dB, the iPod will output that frequency at 99dB (89 + 10). At 99dB, distortion does not occur. If you boost a song playing at 105dB by 10dB, however, we get a total of 115dB which, no doubt, has passed the threshold of distortion. From experience, 105dB is about the limit; we need to reduce the volume tag value of our mp3's significantly below 105dB to avoid distortion. 89dB is the value recommended by MP3Gain developers, and I concur, as this value has eliminated all distortion on my iPod that used to result from boosting frequencies via equalizer presets."

-----

the other "fix" that comes up time and time again involves using higher impedance headphones. I think the basic idea is to go no lower than the stock buds, stick to 32ohm+. a lot of people report problems with 16-25ohm 'phones.

Along the same lines; you could use a pocket-dock (to get line-out) and a 3rd party amp, then use the headphones of your choice...

Apr 11, 2005 5:31 AM in response to Alistair Hart

Just read the article. Very good find there! This sounds very interesting indeed. It could be the solution to my problem, & many others out there. I will try editing the volume tags of some songs & do a comparison, and perhaps this will help!? On another point, perhaps it has something to do with the fact mine was bought internationally, rather than in the EU (which have the volume capped iPods)?

Although this is more effort than I thought would be nessesary for a decent quality of sound, if it helps then I have no problems with doing it.

Anyway, I will reveal the results ASAP. Thanks Alistair.

Apr 11, 2005 6:34 AM in response to Johnny Wood

Results in:

...and they are EXCELLENT! I downloaded the MP3Gain software (650kb-ish), installed it, and after a minute of volume tagging I was ready to try them out. The Radiohead & The Hives tracks I tested tracks were totally clean. The only difference was that they played slightly quieter, which is normal, and explained in the article from the link in the previous post. So then the big adjustment came...to turn up the iPod volume!

Simple, effortless and I recommend it to anyone who has experienced the same problems as I have. Please reply & let the thread know about any other success stories.

I will also keep the post updated with regards to any other problems and solutions I may come across, and also with what Apple have to say about all this. Although the solution was quick and simple, it should not need to be done, which I'm sure everyone else would agree with.

Good luck.

Apr 11, 2005 10:47 PM in response to Johnny Wood

hey johnny, thanks for posting this up. i honestly thought it was just me. i notice it when i attach my 60 to computer speakers in the kitchen, but mostly in the car with the cassette adapter. it's not all songs, but frequent enough that i've noticed it and tried like crazy to balance the volume using the stereo's knobs and futzing with the scroll wheel volume.

one question though (i haven't yet looked at the recommended MP3Gain link yet)... i have a large library. does this mean i'd have to re-tag every single file? also, how does this apply to AAC files?

if i have to go file by file, i'm going to be doing this for days. any thoughts?

thank you again!

Apr 12, 2005 1:17 AM in response to Fizzlestix

Trust me it isn't just you Fizzle! Your large library can be all volume-tagged automatically using MP3Gain. Basically all you will need to do is add a folder (either containing your whole library or subfolders with each artist/album/song) into the list and click the "Track Gain" button, and it volume tags every MP3 found in that folder (and any of the subfolders inside that root folder) you added. Simple. It will take a number of hours for a large library (1000+ tracks), but you don't need the monitor the progress. Make sure you read all the info from the link in the previous post though.

As far as AAC goes, the software developer of MP3Gain is currently tweaking the AACGain program, which will be available (or already is) very soon I would guess. AAC files cannot be volume tagged using MP3Gain.

Let me know how you get on with it all.

Apr 12, 2005 1:28 AM in response to Jessica Firestone

The Mini is fine in terms of sound quality as far as I know. My girlfriend has one. I can't guarantee you will experience the same problems if you buy the Photo, but all I can say is that a LOT of people have found this flaw in their Photo, which clearly suggests mine is not just a one-off defective unit. If you can live with the extra tagging process of MP3Gain (which is very simple and quick) I would still recommend the Photo to you. It is an excellent piece of equipment.

Perhaps Apple will also bring out a software update or make some recalls in due time to sort out this common problem. We will have to wait and see!

Apr 12, 2005 7:47 AM in response to Johnny Wood

Silly question:
Isn't this the whole point of the "Sound Check" preference on the iPod? It finds the loudest level in db of the song and adujusts the whole track up or down so that you don't go past the amps clip level. I stated this in my first post and I use this feature in iTunes and on my 30Gb iPod Photo without the distortion problems.

Mike

Apr 12, 2005 8:51 AM in response to Michael Kovaliv

Yes Mike, you would think that this feature did exactly that, but unfortunately the iPod Photos (as far as mine's concerned anyway) still do this even with this feature on. The sound check "dulls" the sound quality I found anyway. Detail gets mushed up. MP3Gain however, does this job properly.

Still, nobody really knows what is actually causing this problem, or have they hinted anything is going to be done about it. Help us out Apple! Give us some info!

iPod Photo: Poor Sound Quality - Updates

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