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Importing at 128kbps AAC is not working!!!!

I just bought a brand new Mac about a week ago, I also just recieved the update for the new OS (Leopard). Now I am importing CD's into iTunes at 128 kbps AAC and there are bit rates coming up like 127 kbps and 133 kbps. Variable bit rate is unchecked, i redownloaded iTunes after updating my OS and am still expiriencing this problem. Previous to Leopard I never had this issue! HELP!

iMac, Mac OS X (10.5)

Posted on Oct 26, 2007 8:59 PM

Reply
108 replies

Dec 4, 2007 9:19 AM in response to adge

This big gap between 320 and 177 kbps might be explained by the fact that very minimalistic electronica is also very 'mono'. As such, (even though the music has little 'silence') the 'joint stereo' channel probably has. So no worries about quality!

But I see your point regarding the use of smart pl in this case. The funny thing is, iTunes does the same trick (smarter encoding of silence) in encoding mp3, and there it still says 320 kbps...

Dec 4, 2007 9:24 AM in response to acurtis

It displays the average for the entire song. It does not mean that the song was encoded at that rate. Silence is gonna have a very low bitrate (nothing to convert) so the average of the entire song will drop down.

Again, the songs should sound the same as before but the actual displayed bitrate is different.

Based on this and as adge stated, these songs cannot be picked up by a smart playlist, so there is a "problem".

Dec 7, 2007 8:59 PM in response to Chris CA

I understand that if I remove Quicktime 7.3, and install Quicktime 7.2, I can get my bitrate to import with the same 128 kbps AAC for all of my files.

Problem is, I can't get Quicktime 7.3 entirely off of my hard drive. I have tried every suggestion I have seen on this board, and still it is there, on my HD.

Can you please tell me every single step to getting Quicktime 7.3 off my HD, so I can install 7.2?

Thank you
--ben

Dec 10, 2007 7:01 PM in response to matthewb87

I have Mac OS X 10.4.11 Tiger and the inconsistent bitrates occur as well. I though I was crazy about my music bitrates are importing inconsistently, but I guess its a bigger problem than I thought it was. This only started happening when I updated my iTunes to the newest version. Before all my music was at a constant 128 kbps, but I started re-inporting at a higher bitrate of 256 kbps and now I get anywhere from 250-282 kbps.

Jan 7, 2008 5:22 AM in response to Chris CA

Yes it seems to be just an "appearance" issue. My question is if iTunes has always been converting at an ABR (when VBR not checked) how come the files that I previously converted before this little issue cropped up, still show as a CBR - i.e. a whole album of 192, 256 etc? If it really is just showing the bitrate as it's actually been all along, why would this be the case?

Jan 7, 2008 8:39 AM in response to cherryghost11

This is definitely a problem, and it occurs with AAC conversion in Quicktime, QTPro, and the latest version of iTunes. If you're an artist uploading tracks to a distributor to get them onto iTunes, etc., some of the bigger distribs (like Tunecore) require that AIFF's be encoded as 320kpbs AAC files. If the file is anything less than 300kpbs, it rejects it. So when you're converting your AIFF's to 320 AACs and they come out at 271 kbps, even with VBR turned off, that's a big problem. Adding insult to injury is that there's no other mac-based AAC encoder out there, so you have to rely on iTunes or QT, which won't give you a constant bitrate conversion.

I reported the bug to apple, and encourage others to do the same.

Importing at 128kbps AAC is not working!!!!

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