Hows your audio quality in iTunes

I've noticed that audio in iTunes sounds like it's in a echo chamber. Not all, but allot of my library sounds this way. Listening to a song that I've loaded from CD has an echo effect, and then listening to the same song on a CD player sounds normal.
I've used different settings in the iTunes Equalizer, no help there.
I'm using Klipsch THX speakers. Creative SB Audigy Sound Card with latest drivers.
Anyone else ever experienced anything like this?

Hi,
don't know where i saw it, but i have heard it helps so try this.
Open Quicktime, go to Edit, Preferences, Quicktime Preferences, Audio, Sound Out and then select the highest Rate & Size supported by your soundcard, this may help, i am running Itunes Audio at 160Kbps through a Camebridge Audio Amp with some Eltax speakers and the sound is awsome! Mostly Rock music and Metal.

Similar Messages

Poor audio quality with iTunes 9

Hi.
This is my first posting and I am hoping members of the iTunes development team look in here.
I recently upgraded to Snow Leopard and I noticed a marked improvement in sound quality using iTunes 8 . Please note I am playing AIFF files through the digi out of my Macbook into a high quality Dac, amp and speaker separates system, in fact the sound was as good as any cd transport I have ever used. I then "upgraded" to iTunes 9 and noticed a deterioration in audio quality, the bass has become woolly and indistinct and small details in songs are harder to hear resulting in a un-involving sound.
I know I am not imagining this as I have done repeated tests using the same file played back via iTunes9, Songbird and Cog and iTunes is clearly the inferior of the three and the poor quality of 9 is being discussed on many hifi forums.
So come on iTunes team either sort out the audio output of 9 or give us audiophiles an easy way to get rid of 9 and go back to 8 without losing our libraries.
ps. love all the bells and whistles but sound quality is paramount.
Cheers
Andy.

I had exactly the same problem on my new, beefed-up laptop and couldn't figure out how an "upgrade" could ruin my music (which I take pretty seriously). I am embarrassed to say what actually fixed the problem. I started by turning off the EQ and it improved somewhat. I kept searching the web without luck until I noticed something by accident. My system volume was low and the iTunes volume was peaked at max. I turned the iTunes volume to 40% and turned up the computer volume to compensate and voila! The bass distortion and indistinct vocal range was immediately fixed. I turned the EQ back on and was able to use it however I liked. I guess it is like turning up the volume on a radio to max. You get sound, but it gets distorted in the upper range. Hope that helps!

"itunes has detected a problem with your audio configuration" Now Itunes doesn't work on my windows 7 machine. What to do?

I have a Windows 7 system. ITunes used to work fine. Recently I am getting a message:
"ITunes has detected a problem with your audio configuation. Audio/Video playback may not operate properly."
I have reloaded and repaired ITunes. I have uninstalled and reinstalled Quicktime. Nothing works.
Itunes doesn't work any more on my machine. Anybody?

Hey there bogusss,
I would recommend the troubleshooting steps from this article named:
iTunes for Windows: iTunes cannot run because it detects an issue with QuickTime
http://support.apple.com/kb/ts1371
If this issue occurs with iTunes 7.0.2 - 7.6, customers may instead see this error message:
"iTunes cannot run because it has detected a problem with your audio configuration"
If this occurs with iTunes 7.0 or 7.0.1, customers may instead see a -200 error when opening iTunes 7.
Resolution
QuickTime may need to be reinstalled. Follow the steps below to uninstall QuickTime and then download and install QuickTime using the QuickTime standalone Installer.
On the Start menu, click Control Panel.
Follow the steps appropriate for your Windows operating system below.
Windows XP and Windows 2000: Open the Add or Remove Programs control panel and selectQuickTime in the list of currently installed programs.
Windows Vista and Windows 7: Click Uninstall a program (or if using Windows Vista's Classic View of the Control Panel, click Programs and Features) and select QuickTime in the list of currently installed programs.
Click the Remove button (or Uninstall for Windows Vista and Windows 7) and follow the prompts to remove QuickTime from your computer.
Download QuickTime. Note: There are two options for downloading QuickTime, be sure to select the option that does not include iTunes.
During the download:
If you choose to run the installer, proceed to the next step.
If you choose to save the download, double click the QuickTimeInstaller file, then proceed to next step.
Follow the on-screen instructions to install QuickTime.
Reopen iTunes.
Thank you for using Apple Support Communities.
Cheers,
Sterling

Test your audio quality.

Go here and download RightMark Audio Analyzer.
Here are some instructions how to do it.
And please post results in html form (the program creates a html page)

Some test from my own nForce Audio.
Audio Diver : 5.10.2860.0000
1st tests :
Sample rates, Analog External Loopback
16-bit, 44 kHz:
Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.17, -0.78 Good
Noise level, dB (A): -82.0 Good
Dynamic range, dB (A): 81.0 Good
THD, %: 0.0053 Very good
IMD, %: 4.036 Very poor
Stereo crosstalk, dB: -71.3 Good
General performance: Good
http://cal003104.student.utwente.nl/nForce/Analog loopback 16-bit, 44 kHz.htm
16-bit, 48 kHz:
Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.25, -0.56 Good
Noise level, dB (A): -83.2 Good
Dynamic range, dB (A): 82.5 Good
THD, %: 0.0046 Very good
IMD, %: 0.060 Good
Stereo crosstalk, dB: -73.7 Good
General performance: Good
http://cal003104.student.utwente.nl/nForce/Analog loopback 16-bit, 48 kHz.htm
16-bit, 96 kHz:
Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.25, -2.07 Average
Noise level, dB (A): -82.8 Good
Dynamic range, dB (A): 81.2 Good
THD, %: 0.0037 Very good
IMD, %: 0.045 Good
Stereo crosstalk, dB: -72.1 Good
General performance: Good
http://cal003104.student.utwente.nl/nForce/Analog loopback 16-bit, 96 kHz.htm
Conclusions :
@44.1KHz we see a high InterModulation Distortion >4% @48 and 96KHz the IMD is good, this can be explained because of the fixed 48KHz sample frequency of the nForce audio, so @44.1 the high IMD is caused by the sample-rate-conversion. @96KHz sample-rate-conversion doesn't give such a high IMD because the sample-rate-conversion-ratio is 2.00 round.
@96KHz we see the DAC and/or the ADC is and the end of its capacity, this explaines the -2.07dB at 15KHz. This also occurs when using an external DAC so my guess is this a problem of the ADC.
So use 48KHz for highest quality recording.
2nd tests :
Different Outputs, 16-bit 48KHz
Analog Out -> Analog In (Analog External loopback)
Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.25, -0.56 Good
Noise level, dB (A): -83.2 Good
Dynamic range, dB (A): 82.5 Good
THD, %: 0.0046 Very good
IMD, %: 0.060 Good
Stereo crosstalk, dB: -73.7 Good
General performance: Good
http://cal003104.student.utwente.nl/nForce/Analog loopback 16-bit, 48 kHz.htm
Digital Out Stereo -> Harman/Kardon ADP303 Digital In -> Harman/Kardon ADP303 Analog Out -> Analog In
Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.09, -0.27 Very good
Noise level, dB (A): -84.2 Good
Dynamic range, dB (A): 81.0 Good
THD, %: 0.0080 Very good
IMD, %: 0.058 Good
Stereo crosstalk, dB: -73.6 Good
General performance: Good
http://cal003104.student.utwente.nl/nForce/Digital Out Stereo - ADP303 16-bit, 48 kHz.htm
Digital Out AC3 -> Harman/Kardon ADP303 Digital In -> Harman/Kardon ADP303 Analog Out -> Analog In
Summary
Frequency response (from 40 Hz to 15 kHz), dB: +0.11, -0.31 Good
Noise level, dB (A): -83.1 Good
Dynamic range, dB (A): 80.6 Good
THD, %: 0.0080 Very good
IMD, %: 141.314 Very poor
Stereo crosstalk, dB: -73.1 Good
General performance: Good
http://cal003104.student.utwente.nl/nForce/Digital Out AC3 - ADP303 16-bit, 48 kHz.htm
Conclusions :
Stereo Digital out gives a better frequency response than analog (only when using a good DAC!!!)
AC3 out gives very strange results, I think the results one gets here are very dependent on drivers, also AC3 out is always lower quality than Stereo. However when using Digital Out Stereo to your receiver and decoding Pro-Logic sound quality should be worse than AC3.
For highest quality output use a external high quality DAC
People that are using speakersystems like 4point surround and DTT-whatever sets, should first upgrade their speakers/amplifiers and don't worry about better DAC's first.
Marcelo3d : It looks like the DAC in your sony isn't too good, however it might as well be the quality of the pre-amp or the tone controls. Try using a tape-out instead of pre-out to bypass pre-amp and tone-controls. There is however a possibility the receiver wont output digital in to analog out. When program crashes on crosstalk export you swapped left-right channels.

Problems with audio quality on iTunes

I've enabled the 'error correction when reading Audio CDs' option in iTunes, however this has not corrected the problem. On average, one out of every 4 songs I import to iTunes (via CD) feature 'popping' 'crackling' or even skipping. I know it is not the CDs b/c when I play the CDs through iTunes (prior to importing) they are fine. Any suggestions? Thanks!

And before this problem existed, there was never an option for "NONE" at the Billing Info menu for my iTunes account. When I logged on after the support allegedly corrected the problem, the "NONE" feature randomly appeared! I've even tried clicking NONE and then DONE to update it, and even that gives me the "Please contact iTunes support to complete this transaction." message.

Adobe ends your audio nightmares once and for all!

Are you plagued occasionally, like me, with less than perfect audio?
Fret no more.
Adobe has the solution and you don't have to pay a fortune, as the technology is available in their budget Premiere Elements.
Take a look at this in-depth tutorial (between 15 to 40 seconds in) and hear how your audio problems can be consigned to the dustbin of history.
No need any more to worry about the quality of the audio as you shoot, for it can all be rectified with a click of a button in post.
Come on Apple!
Neither Legacy FCP or FCP X has such technology.
http://tv.adobe.com/watch/premiere-elements-9-how-tos/jazz-up-the-action/?tracki ngid=JCVMB

I don't know about overwhelming, but the DVD specification (which was not developed by Apple) calls for the audio to be sampled at 16-bit/48KHz (I think you might also be able to use 96KHz as well). This is what the software expects. If you choose to use another sample rate then the software may or may not be able to "fix" it in post. The real problem is that many camcorder manufactures set the audio to 12-bit by default.
Mike

Audio distortion in iTunes... no distortion with same file in QT...

I've noticed a horrible low-end distortion when listening to audio files in iTunes...it sounds really muddy... almost as if the speakers are blown. However, the distortion is gone when I listen to the same files in Quicktime. I've turned off the Sound Enhancer, gone through every menu setting that I can think of... all EQs are off... I'm clueless. Any clues? Should I reinstall iTunes?

I was sufficiently piqued by this problem to go as far as clean reinstalling the OS to see if any software conflict was interfering with the ITunes playback in this way. I can now tell you that with a pristine computer running 10.5.8, the distortion still occurs. BTW, I upgraded to 10.6 briefly before doing the clean reinstall, and the same distortion was present.
Next step was to throw out ITunes 9 and install 8.2.1 on the clean computer. Guess what? The distortion on the test track (a demo track from a trumpet practice play along CD) is gone!
I think I've definitively established that there is a problem with the audio quality in ITunes 9. I'm not a expert, of course, so I wouldn't know why this would be, but it seems like the new version adds some harmonic distortion somewhere in its output, independently from Quick Time. While this one track is the most noticeable instance (and how my attention was called to this problem in the first place), I can also definitely hear degradation in audio quality comparing HQ MP3s on a computer running 9 vs. 8.2.1, using the same audio interface (Apogee Ensemble) output and monitors.
I hope Apple reads these boards!

Using leopard sound quality in itunes suddenly diminished

Hi All
Anyone else had this problem - I installed Leopard the other day - no worries all good up to now - today started listening to some music and sound quality is awful - podcasts, imports from cd collections, downloads from internet all affected - all sounds like bitrate has fallen down to 32 instead of 256 - any ideas what it might be or what to do????

Hello,
I too have noticed poor audio quality from itunes after upgrading to OS 10.5. Even though most of my songs on iTunes are Apple Lossless Format, it still sounds like it is very low bitrate...So much so that I can't listen to most things. My listening is done via headphones or multimedia speakers thru the audio output on a MacBook Pro 2.16 GHz. Has anyone found a solution to this problem? Interestingly enough, I did notice that the same songs played on Quicktime sounds a lot better than that on itunes. I've tried everything that I can think of to rectify the problem. Checked all my connections, checked eq and other audio features on iTunes, I even tried going into App/Utilities/AudioMidi application to try the aforementioned solution without any luck.
Please, please, please, if anyone has a solution or any idea how to solve this problem, let us know. I cannot live without my iTunes, I use it to study and I have finals coming up next week...and no iPod...
Thank you,
Desperate student seeking help

Audio quality degraded when imprting FLV file to Flash FLA

Hi,
I have created a FLV file using Adobe Media Encoder CS5.
I have played it back on Several Media players and it sound fine.
I import it into a Scene in Flash CS5 aand when I preview the Scene the audio has degraded and sounds terrible.
The audio is mono at 48 kbps.
I cannot find any controls or options to edit the audio of the video.
I have rendered it out several times using different settings but it alway plays back the same highly compressed tinny sound.
Any advise?

Try with your publish settings in flash to adjust your audio quality while publishing, look into the below screenshot:

Audio sounds horrible after installing iTunes vers 10.5. How do I restore the audio quality?

How do I restore audio quality after installing iTunes version 10.5? The audio is high-pitched and metallic.

I wish i knew, no feedback or help forthcoming from apple yet

How do I fix the audio quality on my iTunes? It sounds very distorted.

How do I fix the audio quality on my iTunes? It sounds very distorted.When listening to audio from other websites or programs, it sounds absolutely fine. Only when listening to music on my itunes is when it sounds awful and distorted. Please help.

Artwork doesn't sync with music in ipod...: Apple Support Communities
next try
- Unsync all music and resync
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.

This message recently popped up on my PC - "iTunes has detected a problem with your audio configuration. Audio/video playback may not operate properly." What does this mean and how to fix ??

Hi Everyone - recently this message popped up on my PC, when I was trying to import cd's into the iTunes library and then onto my iPod - "iTunes has detected a problem with your audio configuration. Audio/video playback may not operate properly." Can anyone tell me what this means and how to fix it ?? I am not fantastically PC savvy, so any information explained fully and all steps to follow to get my music playing again would be great !! Thanks, SC

Hi B, thanks so much for helping me troubleshoot !!
Ok, so when I went in to check the Audio tab of the Sounds and Audio Device Properties, I found the following:-
* Sound Playback Default Device = No Playback Devices.
* Sound Recording Default Device = No Playback Devices.
* MIDI Music Playback Default Device = No MIDI Playback Devices.
All text in this drop-down box were light grey, and therefore unable to be selected or altered.
I also tried playing a cd through Windows Media player, to see if I could get sound a different way. When I put the cd in and clicked on Play, the following message appeared, "Windows Media Player cannot play the file because there is a problem with your sound device. There may not be a sound device installed on your PC, it may be in use by another program, or it may not be functoning properly."
Any ideas ? I had sound previously, but then a work colleague re-built the PC to add more space to the hard drive, and since then, no sound. I know this may now not just be an iTunes issue, but I would appreciate any assistance you can offer.
Thanks again,
Shell

How to burn a high-quality audio cd in iTunes 9.0.2?

how to burn a high-quality audio cd in iTunes 9.0.2?

snowmens wrote:
how to burn a high-quality audio cd in iTunes 9.0.2?
It is not possible to burn a high-quality audio CD in any version of iTunes.
iTunes burning is designed for quick, convenient burns directly from a playlist.
iTunes does not do the proper volume normalization or silence suppression that is required for a high-quality finished product.
If you are striving for quality, you can consider dedicated burning programs such as Toast, Nero, or Roxio.

What settings give the BEST audio quality (original audio CD to iTunes)

Further to my last post, can ya'll PLEASE help me get the bottom of this? I have heard so many different opinions & need to resolve ASAP....
What pref' settings will give me the VERY BEST audio quality, when importing original audio CD's into iTunes 4?
File size is of no issue (I have TONS of storage). I aim to import all at the highest quality possible (files need to be "broadcast quality" - for playing through a big PA system). I have been advised to either.....
1. Import using the AAC encoder at a stereo bit rate of 320 kbps with a sample rate of 48.000 kHz.
2. Import using AIFF (lossless uncompressed).
3. Import using Apple Lossless (lossless compressed).
WHICH ONE SHOULD I USE? Bearing in mind that the files will be played LOUD through a professional PA system & I'd prefer the crowd not to notice a significant diference between iTune files & orginal audio CD's (I will be spining both, side by side).
Cheers - Sweetamix.

You are finding out that the answer to this question tough. Everyone has their own opinion on this one.
I saved the responses to a topic I opened six months ago on this same subject. I saved them and cut and pasted them into one document. Here were the answers I received. Good luck. bob
Subject: Re: Classical Music & Bitrate
Date: Sunday, June 26, 2005 11:12 PM
To: <[email protected]>
RE: Classical Music & Bitrate
My experience with classical music (and music in general) is that the higher the bitrate, the better the quality and richness of the music. On the other hand, there is a limit to how much distinction your ears can make, and I think that anything above 192 kbps (mp3 format) is not significantly better (and not worth the larger file size). And in terms of volume adjustment, I personally have not found any need for it.
RE: Classical Music & Bitrate
I copied the same CD to my computer in 128, 160, 192, and 320 bitrates, and I couldn't tell a difference between any of 'em. I was listening to them with Grado SR60 headphones too.
RE: Classical Music & Bitrate
I’m sure you will get several if not many responses. You may also find they vary with the preference of the individual. However there are some rules of thumb. Generally speaking I think you will indeed find the higher the bit rate brings you closer to the CD sound.
Certainly, 32-bit rate does not offer very good sound quality. Actually going from 32 to 320 should have been noticeably better, if not…. Then you’re in good shape. Because what you don’t know is there, can’t be missed.
Also, the bit rate is only part of the equation. What format codec <http://docs.info.apple.com/article.html?artnum=51910> are your songs ripped to.
Consider the following - iPod: About compatible song formats
<http://docs.info.apple.com/article.html?artnum=61476>
MP3 (from 32 Kbps to 320 Kbps)
MP3 Variable Bit Rate (VBR)
AIFF
WAV
M4A AAC
Apple Lossless Encoder
It sounds to me as though your songs may be in MP3 format. As a suggestion you might try ripping your CD’s to 128 AAC format. The general consensus is that AAC is better than MP3. Give it a shot…for the heck of it, and see what you think.
Finally in the end…..it matters little what we all might think….If you think your sounds are better ripped at a MP3 320 bit rate……Great. If not…experiment, and play around till you find what sounds wonderful to you!
RE: Classical Music & Bitrate
Sorry for taking so long to get back to this thread: had two twelve-hour work days in a row.
I did a Get Info on a typical piece in my iTunes and got this
Kind: AAC Audio File
Bit Rate: 128kb (have some at 192 & 2 or 3 at 320)
Sample Rate: 44.100 kHz
Profile: Low Complexity
Channels: Stereo
Volume: +2.3
I was troubled that one responder couldn't tell the difference among 128, 160, 192, and 320 bitrates even using Grado SR60 headphones!
And another seems to be of a similar opinion when he says that I think that anything above 192 kbps (mp3 format) is not significantly better (and not worth the larger file size). Does this apply to AAC format, too?
However, I am going to continue to add tunes at the 320 bitrate - for a while - because I swear that I can tell a difference when I play them over my car radio via the cassette adapter.

Can I modify the Export to... iTunes settings for better audio quality and compression?

I am working on some Music Videos to DJ at a party with, I notice that when I export them as .mov files with Final Cut HD Express, they have 320 kbps and 44.100 kHz in the audio compression settings. Once I export them in Quicktime 10.2, using the File / Export to... / iTunes drop down menu, the Second, (ipad, iphone 4, & AppleTV) setting (not using HD, so the Mac and PC tab is not an option.) The final exported file, that plays great in itunes, appletv, ipad, etc. has a reduced quality audio of Bit Rate of 159 kbps (instead of 320 kbps) and Sample Rate of 32.000 kHz (instead of 44.100 kHz). Is there anyway to change these preset settings somehow?
The Formats on the File / Export / menu are even less dinamic?
I also noticed that some of the Music videos I purchased from the itunes store some years ago, have a 256 Kbps and 44.100 kHz setting. Which is better quality than the ones exported from Quicktime 10.
I thought maybe with Quicktime 7 Pro, I could fine tune all the presets, but it got too complicated for me, might this be an option? What would the settings be?
Using Widescreen 853 x 480 at full quality .mov file.
thanks.

I am working on some Music Videos to DJ at a party with, I notice that when I export them as .mov files with Final Cut HD Express, they have 320 kbps and 44.100 kHz in the audio compression settings. Once I export them in Quicktime 10.2, using the File / Export to... / iTunes drop down menu, the Second, (ipad, iphone 4, & AppleTV) setting (not using HD, so the Mac and PC tab is not an option.) The final exported file, that plays great in itunes, appletv, ipad, etc. has a reduced quality audio of Bit Rate of 159 kbps (instead of 320 kbps) and Sample Rate of 32.000 kHz (instead of 44.100 kHz). Is there anyway to change these preset settings somehow?
Your question basically has too facets. The first is the quality of the source audio in terms of sampling rate and data rate. Under normal circumstances you don't want to export the audio using a sample rate or per channel data rate that is lower than your original source if you are trying to maintain the quality as high as possible and, on the other hand, you don't want to use settings greater than the source values since they increase the final file size without improving the quality of the audio.
The second is the workflow. Since you indicate you are using FCE HD for editing, then using QT X to re-export the data seems somewhat redundant. While it has been many, many years since I last used FCE HD, if I remember correctly, you have both "Export QT Movie" and "Export using QT Conversion" options. The first option takes the audio and video format in which you are editing and merely copies the edited data in that format to a new MOV file container. On the other hand, the second option allows you export the edited data format directly to a user selected compression format using user selected options (but does assume the user knows how to best use these options). These are, BTW, the same export options available in QT 7 Pro.
I thought maybe with Quicktime 7 Pro, I could fine tune all the presets, but it got too complicated for me, might this be an option? What would the settings be?
What is so difficult here? If the source is DVD stereo quality (usually 48.0 KHz @ 192 Kbps then set your output for stereo 48.0 KHz @ 192 Kbps. If you wish to save a bit of file space, the you can use 48.0 KHz @ 160 Kbps but that is normally as low as I go. As to setting combinations in QT 7 Pro, once you set the sampling rate, the application becomes cuntextually adaptive and will only allow you to select data rates that are "standards" compliant and non-compliant ones are automatically greyed out. Rendering quality settings are self-explanatory. These are the basics if you are using a preset option like the "Movie to MPEG-4" export option. If using more complex options like the "Movie to QT Movie" option, then you will need to also consider how you plan to use your file to select the correct encoding strategy. For instance, a constant bit rate is good for optical media from the standpoint of providing a constant flow of data to the player. Unfortunately, this is not very efficient since it forces the quality to vary as it maintains the constant data rate. A variable but contarined data rate is also good for optical media or fast start online files but allows the data rate to vary between user selected data rate excursions and thus provides improved quality over the constant data rate strategy. The variable data rate allows the user to target a specific level of audio quality and will then allow the data rate to vary as needed to maintain a constant level of quality. This option is better suited for playback on a computer since the bit rate can vary greatly in magnitude. The average setting allows the user to target a specific average target data rate but allows it fluctuate as the encoder applies predictor-corrector adjustments. This option, like the constant data rate option, is good for average complexity content when creating a target file of predictable size but can somtimes have problems towards the end of the file if the content suddenly becomes more complex than predicted.
Using Widescreen 853 x 480 at full quality .mov file.
I would rarely recommend using the full quality slider setting. This is more of a redundancy setting forcing the encoder to recycle through certain encoding routines in an effort to improve quality without increasing the data rate. You would like do better to increase the video data rate limit and decrease the quality slider to something in the 50 to 80% range. You also indicate the files are 853x480. Such files are frequently the result of anamorphic widescreen MPEG-2 or DV source files. If so, I would normally recommend retaining this anamorphic strategy by encoding the H.264 video at the same 720x480 matrix dimensions and allowing the player to properly display the files at their targeted aspect ratio. This strategy will either allow for slightly better quality at the current video data rate setting or allow the user to retain the current level of quality using a slightly lower data rate which, in turn, means a slightly smaller final file size.

Hows your audio quality in iTunes

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