Fuzzy output when I convert mp3 to aac (to make audiobook)

That's pretty much it.
I have imported CDs of audio books that I want to put on my iphone.
I am converting the mp3s to AAC - then changing the extension from mp4a to mp4b so that it is filed in the audio book section.
But during the conversion the quality of the track goes from clear to fuzzy. (like white noise in the background)
How do I get round this?

but unfortunately I cant file them in the audiobooks section like that.
Why not? That's exactly what changing the *Media Kind:* does. Puts them under Audiobooks.

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Converting mp3 into AAC

Has anybody ever converted an mp3 into AAC and had the AAC file be larger than the mp3? All of the music on my iPod (close to 3000 songs) is AAC, and when I have an mp3 file I've been converting them, but I did that with a podcast, only 2 discover the size increased from 24 to 65 MB!!!
Does this make any sense?!
Also, am I doing myself a lot of harm, quality-wise, by making this conversion?

Converting 320kbps files into 128kbps will reduce the size by around 60%, but at the same time reducing audio quality. How much so can only be determined by you after several sid-by-side tests. You may or may not be able to hear the difference with your ears and equipment (iPod/headphones).
Converting the 45kbps podcasts to 128kbps will effectively triple the file size of each podcast, while adding absolutely no audio quality. Again, sampling a sample will lower quality.
Down-converting the 320 MP3s may not be as great a audio loss since they are starting off at a high quality bit rate. If they were 128s or 190s, you would notice a significant difference.
Just let your ears be your guide.

Converting MP3 to AAC in iTunes 8.0.1

I heard about how Walmart is offering MP3 tracks for 94 cents through their MP3 downloading site that is now compatible with Mac OS X, Safari, iPod, and iTunes. The MP3 sites has no restrictions for backups, playlists, computers, etc.
So I'm wondering, how do you convert an MP3 file into AAC file?
Sincerely,
Stu "the1macnerd" Carpenter
P.S. MP3 is okay (MPEG-3 Audio layer 1) but AAC (MPEG-4) is a lot better and sounds better in both 128 kbps and 256 kbps, even though 256 kbps takes up twice the space with no DRM, iTunes Plus. However, buying from iTunes Store is a lot better cause Walmart only has 3 million tracks available compared to iTunes' 8.5 million tracks. The iTunes Store is also worth it for people who don't want to buy the edited versions of music because iTunes Store sells both versions, and Walmart is more selective in that they don't sell certain artists based on religious or moral objections, such as Marilyn Manson and other artists.

You won't get any benefit converting from MP3 to AAC, both are lossy compression formats and you could even end up with a file of lesser quality by converting from one lossy format to another. Converting to AAC won't add any more information to the MP3 file than is already there. However to convert any type of audio file in iTunes 8 you first have to change your import settings in iTunes>Preferences>General, choose the Import Settings button. Once you have chosen your setting (AAC for instance) highlight the track you want to convert and go to Advanced>Create AAC version.

Can't convert mp3s to AAC anymore?

I just updated my iTunes to the latest version. Now for some reason I can no longer convert my mp3s to Apple Lossless AAC. Is it just me?

Where are you looking for the command to convert? Highlight the songs you want to convert and go to the Advanced menu at the top of your iTunes window and choose "Create Apple Lossless version": iTunes: How to convert a song to a different file format
By the way, why are you creating Lossless versions of MP3s? You do realise that MP3 is a lossy format and information is discarded when the MP3 is created, changing that to a lossless format doesn't add any information back into the file, you just end up with a larger file of the same quality.

Convert mp3 to aac

I used to be able to select a mp3 file and covert it to aac format. Now the only selection I get when I choose a mp3 file is convert to mp3. Whats up?

Check your import setting. iTunes converts songs based on what your import setting is so if "Convert selection to" says MP 3 that would suggest that your import settings are using the MP3 encoder:
iTunes: How to convert a song to a different file format
How To Choose Import Settings
.

After converting mp3s to AAC, does itunes write id3 tags?

I'm on OSX 10.3.9 and running iTunes 5.0.1. I just recently converted a lot of music which was on mp3 format to AAC at 128kbps (saved about 30% space with no loss of quality).
Now when I'm running iTunes, it lags and a small window comes up sporadically saying "Writing ID3 Tags."
Is this for the files I converted to AAC recently, or what's this all about?

out of interest how did you do the conversion ?
Make an intelligent playlist, with the setings, "kind is" - "MPEG"
Check that your "convert to" setting is AAC.
In your MPEG playlist, press command and a keys together (or Edit > Select All, from the menu bar) and choose Advanced > Convert to AAC.
When you are done, use Select All then option and delete keys together in the playlist, to remove the MPEGs from your library.

What actually happens when u convert songs to AAC?

Will I save more space on hard drive?
Is sound quality good/bad?
Can they still be burned etc as often as normal?

Convert from what? If you convert from one lossy format (e.g. mp3) to another such as AAC, you will lose additional sound quality.
I rip my CDs into .aac 192 kbps because this format, in general, will sound as good as a higher kbps mp3 but will be smaller. However, if you regularly burn mp3 disks or move files to devices that don't support .aac (though many do, including Zunes and PSPs), this may not be the format for you.
I would suggest that you rip a CD/track with which your familiar in both formats and different bit rates and see what you think is the best balance between size and quality.
Best of luck.

How to convert mp3 to m4r ringtone ?

hi all i have just purchased a small MP3 file to use as a ring tone, but, to be be able to use it on my iPhone i need to convert it to a m4r file
is it easy to do this WITHOUT purchasing special software ?
although, having just said WITHOUT purchasing special software !!, i just googled for the relevant FREE software and they ALL seem to be very dodgy !!!!!!
tim

You can make ringtone using iTunes
Convert mp3 to AAC (you can also cut interesting part of the song using information page in file properties) and then rename file extension from m4a to m4r and reimport it to itunes and viola!
BTW. Here is one of instructions available online: http://howto-themes-for-iphones.blogspot.com/2009/12/how-to-convert-mp3-to-m4r.h tml
Regards

New iTunes 4.9 doesn't convert .mpg into .mp3 or aac ?

hello support!
I'm a producer in a german radiostation. we're working with soundfiles saved in .mpg files (mpeg1 audio). In past (with version 4.8) it was possible to import that files into itunes and convert it into mp3 or aac. Now, with that new podcast version, it doesn't work. If I try, I get an unknown error "(-50)". does anyone know about this problem?
and another question: why does itunes play that .mpg files without any problems and ipod doesn't ???
greetz
dennis

Dennis,
What I did:
1) I bought apple quicktime pro do not follow me in this it won't help you.. I got angry and at the apple store they said I would get my money back because I asked them BEFORE I bought and they said it would work. It doesn't
2) I downloaded MPEG streamclip (free) at http://www.apple.com/downloads/macosx/video/mpegstreamclip.html
AND....
It works! You do not need to buy the Apple quicktime MPEG 2 component rubbish, you do not need it if you convert just audio!
I have MP2 files with 384 kbbs and I was looking a bit odd when they showed up as 192 kbbs but that is per stereo channel so the total comes to 384 again.
I transferred the files into AIFF and it works I do see a conversion into AC3 is that AAC? well if you can convert to AIFF you can use iTunes again to convert to AAC or MP3!
so now you can do the job! I am now, after a few hours, again back to start to work..... thanks iTunes boys!
there is another app at http://www.dekorte.com/projects/shareware/SoundConverter/ is seems to do the job as well but it'll cost you 10 dollar. And I do not know if it is as good as the free app...

Converting MP3-AAC and condensing iTunes library

Picked up an iPad 64GB 3G and decided to put my whole iTunes 40GB library on the device . This has caused me to rethink my bit rates to save some room. I tested MP3 vs. AAC sound quality, I'm a professional musician, and the quality difference was barely noticeable. So here are my questions:
1. Should I convert all of my iTunes files to AAC on both my Macbook Pro and iPad? Does it make a big difference?
2. If I do this, should I put my iTunes library with MP3's on my Time Capsule prior to conversion?
Thanks as always for the advice.

MacAddiction wrote:
I guess the bottom line is that I don't fully comprehend all the various formats.
see Digital Audio Formats: A Guide
Most of mine are MPEG, 225 kbps (VBR).
as i said, i would leave them as they are.
I noticed that I have quite a few AIFF files that are huge.
AIFF is a lossless format (as the article above outlines). here it would sense to convert to, say, AAC 256.
edit the article does not mention AIFF so here's a read to peruse: http://en.wikipedia.org/wiki/AudioInterchange_FileFormat
When I converted a sample MPEG to AAC, it saved a good bit of space.
true. but, converting from an already lossy format to an even lossier (e.g. AAC 128) will certainly affect the sound quality. so, it comes down to what is more important to you: space or sound quality. since you are a professional musician, i would expect the latter
what i'm doing is this: CD's are ripped into Apple Lossless files. i move these files to an external HD, then option drag them into iTunes. this will cause iTunes to index the path to the original files but not copy them physically into my main library. with the external connected, i have iTunes convert the Apple Lossless into AAC 256. the AAC's are added to the main library.
for example, if an Apple Lossless files weighs in @ 34,2 MB, the AAC 256 has 9,2 MB only but the sound quality is excellent.
JGG
edited by the Jolly Green Giant (where Green stands for environmentally friendly)

I'm getting a 9041 error when trying to convert files to AAC -- any ideas on how to fix it? the files files in iTunes show up as Apple Lossless but i can't put them on my iPod

i'm getting a 9041 error when trying to convert files to AAC -- any ideas on how to fix it? the files files in iTunes show up as Apple Lossless but i can't put them on my iPod

"I have been able to convert to AAC by first converting to AIFF and then to AAC. This is a pan though."
this worked for me.
thanks.

Elegant solution for converting a mixed AAC/MP3 playlist to all MP3s?

Does anyone have an elegant solution (AppleScript?) for taking a playlist containing a mix of unprotected AAC and MP3 files, converting only the AAC files into MP3 files, and preserving the order in the playlist? It seems to be a terribly tedious job to locate each of the newly created MP3s individually and placing them in order in the playlist. Looking for suggestions. Thanks.

Just had to say thanks for waking my mind up. I'm having troubles in converting over 7,000 MP3s to AACs. I decided to convet everything to the smaller 128kbps AAC meanwhile cleaning everything up. Well, the batch conversion stopped half way through and now I've got duplicats of a ton of stuff in both MP3 and AAC. I had no idea where it stopped on the MP3 list. I completely forgot about sorting by dates. Now, hopefully, I can figure out where it stopped and start up the converting from there rather than starting over and converting everything from the beginning. Got my fingers crossed.
Since I have a bunch of duplicates, I know I can sort these by "showing duplicates". However, is there any to tell it to delete all dups? It'll just take a long time going through and manually erasing. Any tips would be great.

How to convert .MP3 files into .AAC with iTunes 10.5.2

Im running a Mac OS X 10.5.8, and my iTunes version is 10.5.2.
I want to convert .MP3 files into .AAC using iTunes, but no option is given for me. What should I do?

im not going to change all my songs into AAC, I was experiementing around with making ringtones for my iphone. I can open a song in Garageband, and export it as an AAC file to my itunes, but it is very annoying. I remember older versions of itunes having a "Convert to AAC" option, but i can't find it anymore on this current version of itunes.
Basically, I want to convert a couple songs into AAC to create ringtones out of them.

Converting from MP3 to AAC

Several thousand of my songs are in the MP3 format. My question is twofold: first, is there that big a difference in sound quality between MP3 and AAC? I do not care about space restrictions, as I have plenty of room on my 80GB. Second, if I do begin to cnvert these songs to AAC, is a second copy put on my computer as well as in iTunes? If so, where can I find it, as I cannot find duplicates of the ten or so that I have already converted. Thanks in advance. Just want to know if it worth the time and effort to make the conversion.

Converting creates a second file in the format you are converting to. The original file is not changed so you end up with two copies of the song, once in each format. However it's always preferable to re-rip from the original uncompressed format rather than converting from one lossy format to another.
For reference, you'll get an extensive comparison of the various formats on these pages:
Record Store Review - Quality of AAC v MP3 Part 1
Record Store Review - Quality of AAC v MP3 Part 2

Converting mp3 to m4a(AAC)

If I convert mp3 to m4a(AAC) will the quality of the song be better or the same as a mp3? Does converting it really even do anything?

Well, it makes it so those files won't play on anything but an ipod.
I am in the process of converting 5000+ songs from Apple lossless to mp3. What a pain. I wish I'd ripped them as mp3s to begin with.
Anyway - it is personal preference. Convert a song or two and see if you can tell the difference, is my advice.

Fuzzy output when I convert mp3 to aac (to make audiobook)

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