MPEG-1 Layer 3 Audio Files

Will MPEG-1 Layer 3 audio files work on the iPod Touch 4g?
They work okay in iTunes on my computer.
Thanks.

Yes. I noticed that in the Advanced drop down menu. In a test conversion from MPEG-1 Layer 3 to AAC, the file ballooned from 4.8 to 6.5 MB. I'm presuming AAC would be the best choice.
I have hundreds of MPEG-1 Layer 3 tunes. I see that I can select multiple files for conversion, but that is still tedious.

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MPEG vs ACC audio files

I've been listening to my MPEG and ACC audio files on my iPOD video for a few months now and I just noticed that my iPOD no longer has any of the MPEG audio files that I have in my iTunes library. Please help!

If you have mp3 versions (or some other version) of them sure. If you're asking if the AAC file of a MP3 counterpart is necessary, then the answer is no. They are two seperate and distinct files. Just different audio codecs.
It is completely up to you if you want to have AAC or MP3 files or whatever else. Just make sure you don't delete the only copy of your song is what I'm getting at.

Why is my iPhone 5 skipping/not playing any of my songs in an mpeg-1 layer 3 file format? This only started happening after I updated to iOS 8.

I'm getting really upset with this ridiculous nonsense!! Ever since that lousy upgrade to iOS 8, mind you I did not get the worthless recalled iOS 8.0.1 update, my phone has been freaking out. Glitching and freezing are now common place and my apps, which I have never had a problem with in the past, are now crashing without warning. To top it all off my phone, which has had NO problems in this area before iOS 8, is all of sudden skipping and now deleting all of my mpeg-1 layer 3 music files without my consent!! This leads me to assume that the only two explanations are 1) this is just a huge screw up on Apples part and now several of their technical lackeys are feverishly working to get a reasonable working update out and to quell a lot of unnecessary headaches like mine and many others OR 2) Apple is now forcing our hand in purchasing songs only in their own personal format, MP4 I believe it is. Either way, I'm more than a little ****** off and I'm sure Steve Jobs is rolling over in his grave at the large amount of excrement disguised as Apple products and operating systems his beloved company is dumping on it's faithful customers.

Try
Settings > iTunes & App Store > Apple ID: > Sign out then sign back in.
Assuming you have Internet connection to the Internet.

Can't create MPEG 2 with audio

I have a 2 minute HD 720p sequence created in FCP. I'm supposed to convert it into an MPEG 2 File with audio, NTSC 4:3 Letterboxed and no bigger than 45MB.
Every time I try, I get an unrecognizeable file with an extesion .mts instead of .m2v.
I'm using compressor 2. So far I...
1) Selected DVD Fastest Encode 90 min/ 4:3
2) Selected MPEG 2 6.2 mbp 1 pass 4:3
3) In inspector, kept default except : Average Bit Rate 2.4; Field Dominance - Automatic; Multiplexed MPEG -1/Layer Audio.
It's on this 3rd step that I notice the file name gets changed. I'm also not sure how to do the letterboxing. Any help appreciated - this is due ASAP!

What are you going to use your MPEG-2 file for?
If you want an MPEG-2 .mpeg file with both video and audio, you need to make an MPEG-2 Program Stream. Exactly what did you do earlier when making m2v with audio earlier? Maybe you included the an audio preset too, from the DVD presets folder? That is the way you do it if you want to author your DVD using DVD Studio Pro. Then you want a separate video and audio file, to bring into DVD Studio Pro.
Transport Streams have the .mts extension (wrapper), while Program Streams have the .mpeg extension (wrapper).
Compressor 3 User Manual: page 60:
• m2t: Represents MPEG-2 transport stream.
• mpeg: Represents MPEG-2 program stream.
Compressor 3 User Manual: page 183:
About Elementary, Transport, and Program Streams
There are three common MPEG-2 stream types that are used to deliver MPEG-2 encoded video:
• Elementary streams: These streams contain only one MPEG-2 content channel and no audio. Elementary streams are required if you intend to use your MPEG-2 encoded video as a DVD Studio Pro asset.
• Transport streams: These streams can contain several MPEG-2 content channels and associated audio. All the channels are multiplexed together, allowing the receiver to choose which to play back. Compressor supports creating single-channel transport streams that can optionally include associated audio. Transport streams can also recover from interruptions during playback, making them ideally suited for broadcast and streaming applications where noise or network congestion can lead to interruptions.
• Program streams: These streams contain only one MPEG-2 content channel and its associated audio. Program streams require an error-free delivery method and are primarily used for storage or processing within a computer. By default, the Compressor MPEG-2 encoder creates elementary MPEG-2 steams. You can configure the MPEG-2 encoder to create transport or program streams and choose whether they should include audio in the Extras tab. See “Extras Tab” on page 197 for more information.
Note: All the Stream Usage settings except Generic output elementary streams. If you select any of the other Stream Usage settings and then configure the output to be either a transport or program stream, the Stream Usage changes to Generic. See “Stream Usage” on page 185 for more information.

MPEG Layer 3 audio files have changed into MP3^^ files,What is ^^

MPEG Layer 3 audio files have changed into MP3^^ files,What is ^^ and why wont the music files play anymore??

I reinstalled OSX on my macbook which previously played all avi files with no difficulties. Now I am having difficulties playing Avi files with quicktime PRO that use the Mpeg layer 3 codec. I have done the following with no success: downloaded flip 4 mac, divx, xvid, 3ivx, Xvid codecs, changed MIME settings, and deleted and reinstalled.
Depending on the specific version and sometimes the ordering in which they were installed, you may have created a conflict among the components here. While most current VidX components should be able to play MPEG Layer-3 audio, v5.1.1 is the only free VidX codec that is bi-directional. If that is not a problem, then I would recommend you remove (or "hide") all components in the main "Library > QuickTime" folder. Next I would determine if one (or more) of the AVI associated components can actually play the specific files mentioned on their own. You do this by installing a compenent to be tested, opening the player with one of the problem movies, and checking for correct audio and video playback. Log your results, close the player, remove the tested component, and move on to the next component to be tested. Once you deterime which component(s) may function correctly, I would then move on to determine which specific components are in conflict by repeating the tests but leaving the components installed after each test. In this case start with a component that is known to work and is the one you most desire to use (if more than one works). If the player stops working, then you have located a potential conflict. Set the offending component aside and continue testing until all components have been tested and are either installed or set aside. The last step is to simply evaluate component alternatives and configure you system for those files most often played. In my case the VidX v6 Pro components did not seem to get along with the 3ivX D4 v4.5 and/or Casio AVI and/or XVIDDelegate component combination.

MPEG-1 Layer 2 audio support

This is not a Mac specific question, but a general QuickTime post. One of my clients has something like 100.000 hours of MPEG-1 Layer 2 audio programs (.mpa) that he wants to put on-line. Unfortunately, this format seems to be incompatible with HTTP delivery on QuickTime. If you try to connect to such a file's URL from QuickTime player, the player loads the file until its end (no progressive download) and then considers that it is made of a text track : QT Player displays a superb text track made of the binary data of the audio file! You can test it at the following address: http://www2.opsomai.com/TestRadioIna/KB0531501D.mpa
On the other hand, if you open the file locally with QT Player, it works almost fine. The only problem is the time it takes: it seems that QuickTime needs some time to scan the whole file before starting to play it. It takes around 7 seconds for a 1 hour file. If you save the file with QT Player then, allowing dependancies, you get a 1,5 KB QT movie (vs. the original 110 MB MPEG file) that plays immediately.
So, I plan to develop a small QT tool based on QT APIs in order to make these audio files compatible with HTTP progressive download:
1. When a file is required by a user, this software tool will open the audio file with QT on the server
2. The audio file will be then saved on the server, allowing dependancies, but the link to the original file will be modified: instead of the local path (e.g. /Volumes/Media/CollectionName/FileName.mpa) the tool will save its URL (e.g. www.collection.com/media/FileName.mpa). I hope that QT APIs will let us do that, and that the resulting reference movie will be compatible with QT progressive download mode.
Taking for granted that this method works, which I don't know at this time, it has a major drawback: my tool will take around 7 seconds to open the original file, so it will roughly take 8 seconds before the user can start to download the audio file. It can seem reasonably short, but we really don't need that delay, because most of the time we need also to trim the file before this operation, which may take 5 seconds or so, using mpgtx, an open source software.
I wonder if I could use a different method in order to make these file downloadable with QT. Something like what QTFaststart can do with MPEG-4 file (in one second or so, it can modify a MPEG-4 file header in order to make it compatible with QT progressive download). Such a opensource software would be very useful. I could even merge it with mpgtx, so I can cut my excerpt and make it downloadable at the same time.
Any idea would be welcome!
David

This is not a Mac specific question, but a general QuickTime post. One of my clients has something like 100.000 hours of MPEG-1 Layer 2 audio programs (.mpa) that he wants to put on-line. Unfortunately, this format seems to be incompatible with HTTP delivery on QuickTime. If you try to connect to such a file's URL from QuickTime player, the player loads the file until its end (no progressive download) and then considers that it is made of a text track : QT Player displays a superb text track made of the binary data of the audio file! You can test it at the following address: http://www2.opsomai.com/TestRadioIna/KB0531501D.mpa
If your goal is to simply create a "fast start" file, why not simply put the audio in an MOV file container and unconditionally set the file property to open automatically once it is recognized as valid MPEG-1 data. Try this URL: http://homepage.mac.com/jrwalker4/.Public/KB0531501D.mov

MPEG audio file from Itunes U not playing on my Shuffle. :(

Some of the lectures on Itunes U are in MPEG audio file (format: MPEG-2 layer 3). I cannot seem to play this on my Shuffle (2nd gen). I tried converting to ACC using preference and the right click, but it does not work. Is there any other way? Thanks.

I just realized that also the ACC files from Itunes U won't work on my shuffle. When I press Play, it alternates green-orange flash which indicates that there are no music. ???

How do I save a specific layer as an audio file

I needed a second audio file and created a layer and placed my video file that has the audio I want in that layer. I edited the audio in that layer and now I want to save the result as an audio file.. preferably an MP3 file. How do I select a specific layer and save just that layer as an audio file?

I would think with Photoshop you may be able to save it as a video mp4 file then find a Video splitter program to split out the audio. Or use and Audio program in the first place rather the using a program like photoshop that can do some basic video editing.

Exporting Pro CS4 videos to different mpeg formats-no video or separate audio file???

I have Premiere Pro CS4. When I export my video to mpeg-4 format, there is no video. When I export to mpeg-2DVD format, there is a separate wav audio file. Adobe Media Encoder, which I use automatically as the export encoding software, does not seem capable of combining the audio and video files into a single video. Export to mpeg-2 format works fune. When I try to export a 1 hr 20 min video in H.264 1440 x 1080 config, it is a 10GB file. I want the best quality that will fit on 4.7 GB or 8.5 GB media. What am I missing ?

Best thing is to use Dynamic Link/(Send to Encore. Set Encore to automatic and your movie will fit nicely on a dvd.
If you do not want to use DL then export from Premiere with the mpeg2-dvd settings (choose one of the presets or set it manually) with Multiplexing OFF.
Don't forget to set Use Max Render Quality ON.
This output will give you three files. m2v, wave and xmpses (and maybe a xmp file)
Import the first two as a timeline in Encore, make menu and burn.
Using a seperate video file and audio file is the way to go for making a dvd. If you set multiplexing to on then you will get one file containing video and audio.
Encore has to dumux (or demultiplex, separating video from audio) before being able to make the disk. Waist of energy.

Importing MPEG-4 audio files into itunes

Hi,
I am a new user of iTunes. I am unable to import MPEG-4 audio files from an audio CD into my iTunes library. This audio CD was created by a friend on his MAC.
Interestingly, I am able to play the same MPEG-4 files through my Windows Media Player. I have the most recent and updated versions of Quicktime (7.4.5) and the most updated iTunes player for Windows (7.6.2.9). Coincidentally, the same audio CD has some MP3 files which I am able to import into iTunes with no problem.
Would greatly appreciate any help.
Thanks

Incidentally, I am able to play these same MPEG-4 files through my QuickTime player just fine.
Thanks.

Files converted automatically to Mp3 instead of mpeg when burned as audio files

Cannot maintain mpeg music playlist files when burning using audio file burn mode

They will be compressed to MP3 when published. It is always better to have an uncompressed file to start with, easier also to edit with audio software (Audition, Audacity) without quality loss. Be sure that it will be reduced largely when published. And please, don't shout.... why those big fonts?
Lilybiri

How do I move MPEG audio files from my iPod to my library on my computer???

Can someone tell me how to move MPEG audio files from my iPod to my library on my computer? Somehow all my songs on my iPod are MPEGs and they won't transfer to the library. I really don't want to loose the music, and there doesn't appear to be an option to convert the MPEG to a ACC file while the MPEG is on the iPod. Please help....

iTunes/iPod does not provide a way of copying tracks from an iPod to iTunes except for purchased music. But iTunes can play MP3 files without conversion.
Here are some ways of getting files from an iPod to your PC:
Copy from iPod to PC
It is important not to allow your iPod to sync with an empty library. If it is set to synchronise automatically you will get a message saying your iPod is linked to a different library and asking if you want to sync – it is important to press cancel as syncing with an empty library erases all music from your iPod.
You can also prevent auto sync by holding down shift & ctrl as you plug in your iPod and keeping the keys held down until the iPod appears in iTunes.
Once you are connected, you need to set your iPod to manage music manually.
http://support.apple.com/kb/HT1535
If you have an iPod with iTunes Store purchases on it, you can use it to copy your purchases to other authorized computers.
http://support.apple.com/kb/HT1848
However this is not allowed for other music.
This MacMuse tip tells you how to copy music from your iPod using Windows Explorer, but it is a bit fiddly:
http://discussions.apple.com/messageview.jspa?messageID=797432
Otherwise you can use third party software to manage the transfer, there are a variety of programs out there, some free and some that will copy ratings and counts as well as the music files. Here is a selection, check them out and see what suits you.
http://www.yamipod.com/main/modules/home/
http://www.floola.com/modules/wiwimod/index.php?page=WiwiHome
http://www.ipodsoft.com/site/pmwiki.php?n=igadget.Homepage
http://www.copytrans.net/
For a more complete list see:
http://en.wikipedia.org/wiki/Comparisonof_iPodmanagers
There is a useful background article on copying from your iPod here:
http://www.ilounge.com/index.php/articles/comments/copying-music-from-ipod-to-co mputer/

Converting MPEG-4 Audio File (Protected) to MP3

New user purchasing tunes for my Lyrica MP3 player using daughters setup for IPod. Tunes downloaded in MPEG-4 audio file format and are 'protected'. When trying to convert to MP3 it won't because of its protected status. How can I convert them? If I already purchased the songs, can I go back and download them again in the MP3 format? Did I just waste my gift card and need to purchase them all again downloading them in MP3 format? Thanks
Windows XP

I too am interested in this answer. I am trying to copy files from my son's Itunes library to his PSP and it will not play protected files.

I want to convert the MPEG-4 Audio (.m4a) to a window media audio file

i want to convert the MPEG-4 Audio (.m4a) to a window media audio file, i downloaded some songs so i can run them with a photo slide show on my samsung video. the machine would not play them (could not find them) the files that work are all windows media audio

You can't convert to WMA with iTunes. I'd be surprised if the software can't read mp3 files. iTunes can convert to that. Otherwise there are free format converters out on the web. The suite from http://www.dvdvideosoft.com/ is handy and includes an audio convertor. There is no need to install their toolbar or any other 3rd party software that gets offered.
tt2

MPEG-1 Layer 3 Audio Files

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