A MP4 file is MPEG-4 Video file, which may contains video, audio, subtitles, and image data. It is commonly used for distributing and sharing video on Internet. The MP4 format
compresses video data with MPEG-4 encoding and audio data with AAC compression
or other compression algorithm. A mp4 format file uses .m4a extension if it only contains audio data. The mp4 format is
supported by various video programs and hardware devices.
MP3 stands for Motion Picture Experts Group Layer 3, which is a digital
compression algorithm for audio file. Today, the MP3 file format is the most
widely used musical file formats in the world.
PowerISO can rip audio track from mp4 file and store it as mp3 file, so that you can play it in handheld music players or other devices. PowerISO supports not only mp4 format, but other
commonly used video formats, such as avi, mpg, and wmv format.
Please follow the steps to convert mp4 files to mp3 with PowerISO.
Run PowerISO, and select "Tools > Audio
PowerISO Audio converter will popup. Click "Add
files..." button to add the mp4 files to the convert list. The "Add files" dialog will
popup. Navigate to the folder containing the mp4 files, select them, and
click "Add" button to add the mp4 files to convert list. If
the mp4 files are not listed in Add files dialog, please select "All
files (*.*)" from the "files of type" drop list.
Output folder: You can put the converted mp3 files in the
input folder, or put them to a separate folder specified.
Output format: The output format can be mp3, flac, ape, ogg,
wma, or wav. Please select "MP3" for output format.
You can change the
mp3 encoder settings by click "Settings..." button. In "MP3
encoder settings" dialog, you can change sample rates, sample mode, and
sample format. The bit depth is 16 for mp3 encoding. Click "OK" to
close the encoder settings dialog if all settings are correct.
Click "Convert" to start conversion after you have
added the files and select the appropriate settings for the conversion.
You can cancel the conversion by clicking "Abort"
After all files have been converted, you can see the
message, "Converting audio files completes successfully". It will
also show the number of files converted successfully and the number of files
failed to convert.
Convert audio files to flac
Convert audio files to ape