Combining AAC Files

I am trying to combine AAC(m4a, m4b) audio files into larger, longer files. However Quicktime doesn't seem to be able to combine more than 12 hours per file. Does anyone here know of a workaround. Many of my files (Audiobooks primarily) are 30+ hours long. I can do it to MP3s but i then can't get it back AAC Which is what i want.

If QuickTime is the restrictive factor, you probably will run in to the same problem using this script.
You could give it a try though.
M
17' iMac fp 800 MHz 768 MB RAM Mac OS X (10.4.7) Several ext. HD (backup and data)

Similar Messages

How to combine multiple purchased aac files into one aac file

I recently purchased in iTunes an album consisting of 16 m4a files. I ended up creating a playlist in iTunes for the songs. I would like to create one m4a file which combines all and then play it in iTunes. Is the copy protection preventing me from doing so?
I know how to convert m4a files that I have converted to mp3 and combine them using Terminal with a cat command. Then I import that combined file into iTunes. All is well in this case. I tried this with the 16 m4a files and I could not import the resultant mp3 file into iTunes.
Any way to combine multiple purchased aac files?

A simple way to accomplish the job, though not recommended is to print the 2 page file to a new PDF with multi-up (assuming you select vertical rather than horizontal locations) and adjust the paper in the Adobe PDF printer to be 8.5X22. At least you might give it a shot. Some variation, along with rotation possibly, might work.

Remove matched itunes account tag data from AAC file

My brother has (stupidly) added his iTunes folder to mine and now everyone is mixed up. The problem is that some of his files were tagged with his iTunes account details as he had been "matching" until he decided not to renew the service after the initial 12 months.
Is there some way that I can see and then sort on this field so I can delete the albums from my hard drive. The strange thing is that not all tracks within an album are tagged just the odd one or two.
The combined library is in excess of 50, 000 tracks (I used to work in a record shop and got good discount) so cant simply subscribe to match and re-up.
Any suggestions would be great.

Hi,
If the music has been matched and the matched version downloaded to replace the original file, the file type will be "Match AAC audio file". You will be able to extract this music using file type.
I don't think that you would be able identify other track as the would be standard AAC file or mp3 or other format.
Jim

Combining ACC files

I am trying to combine AAC(m4a, m4b) audio files into larger, longer files. However Quicktime doesn't seem to be able to combine more than 12 hours per file. Does anyone here know of a workaround. Many of my files (Audiobooks primarily) are 30+ hours long. I can do it to MP3s but i then can't get it back AAC Which is what i want.

As you have a Mac, try GarageBand.

Help!!! - Protected AAC files do not play on any of my iPods

Since ten days ago both my iPods (Video 60GB and Photo 40GB) are not capable anymore to play iTMS purchased music. The music plays fine on iTunes (Windows, last version), is correctly copied on both the iPods (both updated to the last version of iPod software) but when I try to play any of the Protected AAC file kind the iPods just shows the Cover and skips to the next songs.
The bad thing is that is happening on any Protected AAC file i try to play on any of the iPods and we are talking about 527 songs, for a total more than 500 euros. THAT'S BAD!!!
I've tryed everything, re-flashed the iPods with the last iPod Updater (any hint on where to find the 2005 version?), reinstalled iTunes on both the PCs I've at home, deauthorized and re-authorized the iTMS account, deleted all the music from the iPod and loaded back again, no light at all...
I've contacted the iTMS support, they have deauthorized all my PCs, I've authorized them back but nothing. After four email they passed me to the Tech iPod support.
I've called them, on the Video I've also the AppleCare, we tryed everything, also formatting the iPod via the Operating System, but no luck.
At the end they have said that is a problem with the FairPlay authorization and brought me back to the iTMS support.
I wrote them again, explaining all the situation and giving them the SR number and this is what I got as an answer:
"have escalated the issue you reported, and you will receive an email message once we have a resolution. Thank you for your patience as we work to make your experience with the iTunes Music Store more enjoyable."
No timeline, no explanation at all.
Obviusly all the other functionalities of the iPods are working fine and all the Protected AAC files plays fine on iTunes, but nothing on the iPods.
I've also tryed to buy a couple on new songs from iTunes but also these do not play on any of the iPods.
From the tech support side, seems I'm the only one to have this problem in the world. From my point of view this could be a FairPlay keys problem but the result is that I cannot play any of the music I've bought.
Does anybody had this kind of problem or some hints to save the day?
One bottle of italian wine (Brunello di Montalcino, very fine red wine) to who finds a solution.
Have an happy life.
MB from Italy

Nobody replyed to my message but I think that knowing the solution can be helpful for someone in the future.
I've made some extensive testing.
To me the problem has appeared when I've update both the iPod to the last iPod software version, 1.1.1 for the Video and 1.2.1 for the Photo.
At that time I was using the iTunes for Windows version 6.0.4
Thanks to the hint of a user on the iLounge forum (www.ilounge.com), the problem was related to the versions combination between iTunes for Windows and the iPod Software.
Today I've tried all the version of iTunes form the 6.0.0 to the 6.0.4 (thanks to File Hippo) and the only one that works is the 6.0.0
The problem seems solved on both the iPods, obviously I've notified Apple of the temporary solution and I really hope that someone will take care of this one.

When will creative labs become compatible with AAC fil

I've been using itunes to upload music and I wanted to know when creativelabs will be compatible with the itune friendly AAC files.

Time to rip this post apart.
<<I'll hand it to you for persistence, although I don't know why you CONTINUALLY try to disrupt a tech forum for Creative with pro-Apple BS.>>
Pro-Apple BS? How was pointing out that AAC is an open format pro-Apple? It's not. Don't make up things. All I did was point out that AAC is open and that it can be played on any OS, or any MPEG-4 compatible software or hardware.
<<AAC is a proprietary format. It is, as you should know, based on the audio specification for MPG4, which came out over 6 years ago. Dolby Labs controls the licensing of this format, the codec and the chips to decode and encode it. The fees are substantially higher than those for WMA, and of course, than MP3.>>
Stop getting your information from that post on Napster that I debunked MONTHS ago. I proved that wrong and you know very well that it's wrong. Anyway, Dolby does control the licensing for MPEG-4 AAC, yes. However, licensing fees are not anything like you or that Napster post said. I provided information back then, so you can go back and look for yourself, if you're still choosing to throw your money away on Napster. If licensing fees are so bad, then why are there so many freeware players that play AAC files? MPEG-4 AAC files! Why? Why can I download a FREE operating system (Linux), and use completely free software to rip and play AAC files? Exactly. iTunes is freeware you know. Why can I download it for free and rip and play AAC files? Surely Apple isn't going to front the bill for millions of people to use iTunes to just rip, organize, and play their music.
<<AAC is not the logical successor to MP3. If only WMA or AAC are considered, then WMA is the clear winner in that race. >>
How is WMA the clear winner? Besides the fact that WMA sounds noticably inferior at any bitrate.... Even HE-AAC mops the floor with WMA9 Pro at low bitrates. Anyway, how is WMA the clear winner? AAC compatible digital audio players control *90%* of the hard dri've market, 43% of the flash market, and a combined total of over *70%* of the entire market. Let's not forget that the number one online music store, which controls over 70% of the market, uses AAC as it's format of choice, and the next biggest online store behind very distant number 2 Napster is using AAC as well. Soon Napster will be launching a "music to go" rental service that targets ALL platforms. Can you guess the file format of choice? AAC
<<In fact, WMA9 Pro is under consideration for the next generation "CD" compression. This, along with DVD-A and SACD. Note there is nothing from Dolby under consideration at all. >>
hahahaha says who? Actually, since MPEG-4 is part of the HD-DVD and Blu-Ray specs, AAC is already part of the deal And, right now, SACD has the same market penetration that CD at the same point in it's lifetime. So SACD is well on it's way to becoming the "next CD". As it looks right now, SACD will become the CD format of "tomorrow", while the iTunes Music Store is handling the current "CD quality" music business just fine. As it stands though, honestly, it will be a combination of two things. SACDs for audiophiles, and iTunes-like downloads for everyone else.
Also, Dolby only handles the licensing portion of AAC. AAC was developed by a number of companies, including Sony. Sony has a stake in SACD, blu-ray, and any optical disc technology that comes out. So I can guarantee you that they will not let AAC die, even if it kills their precious atrac3/atrac3plus format.
And another thing to consider is that the recording industry wants a standard across all platforms for digtial music downloads. And considering 70% of the market is AAC compatible, and by the end of this year, a certain online music store will have passed over $b in total revenue, you can imagine which format will win.
<<Even assuming the original poster meant he wants to load non-DRM ("Fairplay") tracks on his Creative player, it will not likely happen so long as Apple is intent on blocking 3rd parties from using purchased iTunes songs on any other player.>>
What does iTunes purchased songs have to do with AAC files ripped from anyother source? Exactly. Using Apple is an excuse for companies to not support AAC. It's their loss though. If Creative would support AAC, they would have opened themselves up to the market of millions of people who do use iTunes and Real Player 0+ to rip their CDs.
<<It is unlikely Creative will spend the license money for a purpose so limited as self-ripped AAC files when there are other free alternati'ves to somebody ripping their own CD's.>>
How are AAC files limited? AAC files can be played and ripped on any platform. If you want to talk about limited, you have to look at WMA. It only works under one OS and only certain players can play it. And what free alternati'ves are there? MP3 licensing isn't free. WMA licensing isn't free. If you're selling a player for profit, you HAVE to pay for WMA and MP3 decoding capabilities.
<<AAC is a good-sounding compressed format, but for mass acceptance it will always remain a niche unless Apple opens things up and Dolby lightens up on their expesi've licensing.>>
Mass acceptance? AAC has already been accepted by the masses. Over 350 million songs sold in AAC, and 70% of the digital audio player market is AAC compatible. I think players that DON'T support AAC are currently in the niche market
<<Something good like Oog Voorbis has a better chance of becoming the successor to MP3, I think, and even that remains a niche at this point. >>
Ogg Vorbis will never replace MP3s. First off, the sound quality isn't as good as AAC. Secondly, Ogg Vorbis requires a processor with a FPU. FPU require more battery power, so battery life is affected significantly. And most importantly, there are no CONVENIENT Ogg Vorbis encoders. Not to mention Ogg Vorbis still has a lot of bugs that need worked out. They only recently worked out a bug that was causing significant high end distortion that greatly affected the sound quality of the files. Plus Ogg Vorbis has no DRM container.
Also, transcoding a file degrades the sound quality significantly.

Protected AAC files entered in Genre only on 160GB Classic ipod.

Albums purchased from the itune store (protected AAC files) when transferred to a 160GB ipod are displayed only in the Genre file (eg audiobooks, rock etc), not in the playlist it was actually placed. It is also not listed under the composer (or author). To find the album it is necessary to scroll through the Genre list (which isn't in any particular convenient order). On earlier generation ipods, this doesn't happen; purchased albums are shown in playlists and under the composer or author. Does anyone have any ideas on how to get around this?

I've made some extensive testing.
To me the problem has appeared when I've update both the iPod to the last iPod software version, 1.1.1 for the Video and 1.2.1 for the Photo.
At that time I was using the iTunes for Windows version 6.0.4
Thanks to the hint of a user on the iLounge forum (www.ilounge.com), the problem was related to the versions combination between iTunes for Windows and the iPod Software.
Today I've tried all the version of iTunes form the 6.0.0 to the 6.0.4 (thanks to File Hippo) and the only one that works is the 6.0.0
The problem seems solved on both the iPods, obviously I've notified Apple of the temporary solution and I really hope that someone will take care of this one.
Till now nobody from Apple has answered back even to thanks for the "workaround", I'll see what will happen.
Thanks again for your support
Dell M70 Windows XP Pro

Ipod touch transfers memos as AAC files

Hi All,
I have an iPhone 3G and a 2nd gen iPod Touch.
Using voice memos and syncing them to iTunes, the iPhone syncs the memos as Apple Lossless files (what I have set as my default import setting) and the iPod Touch always imports it's memos as AAC files.
I am using the same microphone and, I believe both the iPhone and the iPod Touch record the files as WAV files. I have not changed and double checked that the settings were the same, in fact, I did back to back testing and syncing. Weird, right?
I really need the iPod Touch to transfer the files either as WAV, AIFF or Apple Lossless because I am using the files for a documentary.
Thanks,
Lydia
Does anyone have a clue as to why it is behaving so strangely.

Voice memo files are recorded as MP4 files (actual extension is m4a). WAV files are not used by Apple. And while you have your CD import preferences set to Apple lossless, I don't believe that this setting is used to handle voice memos.
If you need to convert the voice memo files to another format, there are literally hundreds of programs that can do that for you.

After I have combined some files together to make them into one pdf, can I add and take out files?

After I have combined some files together to make them into one pdf, can I add and take out files?

Hello djensen1x,
Could you please let me know what version of Acrobat are you using.
Also, tell me your workflow of combining those PDF files?
Please share the screenshot of the error message that you get.
Hope to get your response.
Regards,
Anubha

Good day, I have installed Acrobat DC, and would like to combine 2 files. One is excel allready converted to PDF - No problem. The other one is from Pastel mailed as PDF.

Good day,
I have installed Acrobat DC, and would like to combine 2 files. One is excel allready converted to PDF - No problem. The other one is from Pastel mailed as PDF.
When trying to merge the files, this file ask for a Password. No password was issued from the setup or mail?

Good day abrieb93050306,
I can understand your concern, however can you please let me know that are you able to open both the PDF files ( the one you converted form excel to pdf & the other pdf that was mailed to you ) individually without using any password?
As it asks for the password, it means that the postal mailed PDF is password protected. You can ask for the password from the sender of the postal mail & then try to combine the files.
Please follow the steps in the provided KB doc.to combine the files : Combine files into single PDF | Adobe Acrobat DC tutorials
This will probably resolve your issue.
Let me know if you still experience any issue.
Regards,
Aadesh

How can i convert an AAC file to an mp3 file on my new 2015 IMAC? The option to convert to mp3 isn't available on iTunes controls anymore.

How do i convert an AAC file into an Mp3 file on my New 2015 iMac? The option to "convert to mp3" isn't available in controls. Thank you.

Click here and follow the instructions.
(121248)

How do I convert an MP4 file to an aac file

i have converted some online videos to MP4 files. They are in my iTunes home movies folder but I can't hear them in my music play list. How do I make this happen? Do they need converting to aac files?

If they are still movies with video then they won't appear under music in iTunes because they are movies.
It is possible to use tools (e.g., MPEG Streamclip > save track ) to split audio and video tracks, leaving you with a file that is essentially .mp4 (audio) = aac = m4a This should appear in iTunes under music. You might find it works better if you change the file extension to ".m4a" instead of leaving it as .mp4 which iTunes may still interpret as a movie.

Hiding filenames when combining multiple files into a single .pdf

I'm fairly new to this Acrobat X. I'm trying to assemble my portfolio to distribute to employers but I cannot seem to get rid/hide the filenames in the final pdf file. I was using the option to 'combine multiple files into a single pdf' because I was compiling images and documents to a single readable pdf file. I got all that done but once I open it, I'd see that each page would still contain the original file names rather than page numbers - which I prefer not to have employers see for the sake of tidiness (and I refuse to use the Adobe portfolio because it's not really efficient on space or design. I prefer a simple page-by-page pdf). So I was wondering if anyone can tell me how to hide my file names, change them into page numbers or getting rid of them all together so the 'Table of Contents' in the pdf preview mode would not show anything, I would really much appreciate it.
-Ss

Well, when the .pdf is in the final, deliverable form; I open it in Mac preview mode and the sidebar is always extended showing a 'table of contents' rather than having each document in the pdf file have a number designating a page name, it shows each individual filename the pdf is composed of. Not too sure about bookmark, though. Thanks for the reply!
If you want, I can send the file to you.

MP3 and AAC files mixed in burned Audio CD???

Here is the story. I am new to iTunes and I have a 400Mhz G4 AGP Machine running OS 10.2.8 and have Quicktime 6.5.3 installed. I also have a 93 Gig HD and 512 megs of RAM and a Sony CRX160E iLink CD burner. I was running iTunes 3.0.1 for a little bit and just upgraded to 4.7.1 about a week or 2 ago. Can I mix "MP3" encoded tracks with "AAC" tracks. I think that I read in the help menu that I had to use the "Data CD" option instead of the Music CD option. But, if this is so, can I still play this CD in a regular CD player? since was encoded with MP3 and AAC and it is formated as a Data CD??? The reason I am asking is because I encoded a bunch of songs as MP3s in 3.0.1 as default and I understand that AAC files are of slightly better quality so, I wonder if it would be worth it for me to re-import my songs in "AAC" for consistency. Consistency is my main concern. I want to be able to burn CDs with little problems (although I have some issues but, that is a different story) and mix formats if I can.
Thanks,
Larry

Thanks for your help! I just burnt a CD with mixed formats and it played fine in a "newer" CD player. My home CD player is older (Circa 80s or 90s?) and I have been told that the older CD players either can't or, don't like CDRs. So, it played fine in my son's newer CD player but, not in my "older" player. I am not too sure about the difference in sound quality yet. I'll have to do some more testing. The MP3 files and AAC files both sounded well when played. One annoying thing, though is the volume issue. Most of the songs played at a similar volume but, one played quite softly. An annoying thing but, I understand that even if you use the "Sound check" option, the sound can vary due to the fact that iTunes has a "fast" way of reading the sound levels and could be inefficient. I will try "iVolume" to see if that helps. It is supposed to be pretty good for iTunes except for the version 7 that just came out.
Thanks again,
Larry

AAC files no longer work

I have 865 AAC files which no longer work.
These are in iTunes but no longer play. Can't really say when they quit but noticed it tonight and went thru them all.
If I view them in the Finder, they don't play with Quicklook or by preview in the Finder window.
No other application will play them (VLC, QuickTime).
In the Finder, it shows them as an MPEG-4 Audio File. The extension is .m4a, which is an AAC.
Icon is correct.
In iTunes, when I get info, everything is on the left side of the Summary tab but right side is blank. It should have the Profile, channels and Encoded with: (iTunes and QT version).
Looking at file properties in VLC, everthing except the name is blank (arist, genre, etc.).
Bit rates are different (128, 160, 192, 256 VBR).
Dates added and modified are from 2005 to a few weeks ago.
Single songs to whole albums.
Some iTunes DRM, some iTunes plus and some imported from CDs.
I'm running 10.5.7 on the internal drive and my iTunes folder is on another drive on a 10.4.11 partiton.
I have copies of these files on another drive and comparing them in the Finder, they have the same creation and mod dates. They are the same number of bytes.
The only difference is one works and one doesn't.
Ran Disk First Aid and Permissions repair on both drives.

Not in figuring out what happened.
I copied the files from a backup drive to the original drive replacing the files and everything works fine.
Okay now, here's something really whack.
I had dumped all the files into the trash but have not empied it yet.
I installed 10.5.8 yesterday and it works great.
However, now looking at the song files in the trash, they all play correctly with Quick Look (spacebar).
Message was edited by: Chris CA

Combining AAC Files

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