Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [m4a]

The tag has no usage guidance.

0
votes
1answer
35 views

iTunes only plays first part of song

I downloaded an album from iTunes Store on my MacBook (macOS 10.13.6). One of the songs, only the first 17 seconds play. Then it jumps to the next song. The total time of the song is displayed ...
1
vote
1answer
26 views

Why can't I Airplay a certain sound file in iTunes?

I have this one file that, when I play music in iTunes using Airplay, always makes iTunes revert to use the computers internal speaker. When this specific track is finished, next track is again ...
1
vote
0answers
1k views

How to remove my email address, name, and purchase date from iTunes Plus files?

Any files that you purchase from iTunes (or obtain with iTunes Match) will contain your personal information: Is there a script that automatically goes through all music inside the iTunes Media ...
1
vote
2answers
285 views

Is 128kbps too low-quality a file size for the iPhone 5?

I've got a music collection of lossy M4A files at assorted bitrates that I want to transfer to my iPhone, and in order to conserve space I want to make each track as small as possible while keeping ...
1
vote
0answers
380 views

Can't import m4a files to Audacity

I have installed the latest version of ffmpeg (3.1.2) through homebrew, and I have gone to Preferences -> Libraries and located the ffmpeg library in Audacity (/usr/local/Cellar/ffmpeg/3.0.2/lib/...
1
vote
2answers
10k views

Why I cannot play M4A audio on iTunes, but I can play it on QuickTime?

I have some M4A audio files, that I can't play on iTunes (e.g. double click the file, and then iTunes fired up, the audio added to the library, but the play doesn't start. Tried double clicking on the ...
1
vote
1answer
868 views

how to convert all mp3 to m4a and save tags and covers?

Strange bugs with iTunes and iphone, when trying to transfer and listen files in mp3. In m4a everything is all right. Is there any way to convert all mp3 files to m4a and save all tags and covers? ...
0
votes
2answers
950 views

Automate Conversion from m4a to mp3?

I have hundreds of sound effects - clips just a few seconds long each - that are all m4a files. I need to convert them to mp3 files. What's the best way of doing this? I see Automator can automate ...
0
votes
0answers
148 views

Adding “Explicit” Label to Songs [duplicate]

When transferring a song from a CD to my iTunes library (or downloading an .mp3), I've noticed that Explicit and Clean labels are not present (as seen below). I've already added all the information ...
2
votes
4answers
689 views

Good free audio converter for OS X Lion?

Am trying to find a simple audio converter to convert various m4a, wma, mp3, and flac files to standard mp3 128KB VBR (for an ancient mp3 player with limited storage). I'm probably only going to use ...
0
votes
1answer
2k views

How to get and set metadata of a m4a file?

I am trying to automate some changes in m4a metadata and would prefer doing it through AppleScript other than popular solutions like mutagen. How can I address m4a files metadata? I need not only ...
2
votes
3answers
10k views

How to identify codec (AAC vs ALAC) used in an m4a file

Given that the m4a format is merely a container, and can contain music encoded with a lossy (AAC) or lossless (ALAC) codec, is there a simple way to determine which codec was used for a given file?
4
votes
5answers
6k views

How can I convert an m4a to mov?

I have a m4a audio file that I need to convert to a mov file. How can I do this?
4
votes
2answers
2k views

How to re-encode iTunes m4a files to mp3

I want to convert some of my iTunes m4a files to mp3 files but because I have multiple iTunes accounts, iTunes wont play these files due to computer authorisation issues therefore I can't use iTunes ...
1
vote
2answers
159 views

How to build a simple app that turns text to m4a files

I'm learning Chinese and want a way to quickly generate and save words and phrases to m4a files. I've managed to do pretty much what I want in terminal, but I can't seem to figure out how to make an ...
6
votes
3answers
3k views

Convert ALAC to aac 128k with all metadata intact

I have about 300 gigs of ALAC files (m4a container) with well groomed metadata, album art, etc. (Original source: CD rips with dbPowerAmp). I want to convert my music library to 128kbps AAC (still m4a)...
0
votes
1answer
161 views

Does iTunes put my iTunes account information in track files when I import CD albums?

Does iTunes put my iTunes account information in track files when I import CD albums? I never shared any music because I prefer to buy original CDs but if someone stoles some files of mine can my ...
8
votes
6answers
8k views

How to replace an MP3 or M4A in iTunes with a higher quality file, without having to re-do playlists containing the track?

I have in my iTunes library some songs that, years ago, I ripped from CDs at bit rates of only 128kbps. Storage is cheap now and I'd like to replace those songs with higher-quality versions (e.g. ...
5
votes
2answers
4k views

How to replace mp3 files with m4a versions in itunes?

A few points before I get into my question/issue: I am not looking for a way to convert file formats. The library and all music is located on another Mac on the local network (so it is not indexed by ...
1
vote
1answer
864 views

copy song info from mp3 file to aac file from terminal

I am trying to create a script that performs various conversions between formats of audio files. In one particular step, I use afconvert in Terminal to convert an mp3 to aac(mpeg4/m4a), but in this ...
10
votes
5answers
8k views

Merge multiple m4a files

Is there an easy way to do this? I have several folders with music files that I want to join. So it would be good if there is a batch solution to this problem.
0
votes
1answer
469 views

How do I remove the “video” flag from a transcoded .m4a file?

I transcoded a bunch of music videos downloaded for free from the iTunes Store to audio only .m4as in the Finder, following the hint at http://osxdaily.com/2012/01/16/convert-video-to-audio-mac-os-x-...