MP4/M4V to M4A: Extract Audio from MP4/M4V(MPEG-4 Video) Video to M4A(MPEG-4 Audio) with River Past Audio Converter, MP4/M4V2M4A converter, conversion
What is
MP4/M4V?
A video compression standard planned for late 1998. MPEG-4
extends the earlier MPEG-1
and MPEG-2 algorithms with
synthesis of speech and video, fractal compression, computer visualisation and
artificial intelligence-based image processing techniques.
MPEG.ORG is an excellent source for additional
information on MPEG format and usage.
There are several ways to decode MP4 video. Most of the time, having Apple
QuickTime installed is
sufficient. Occasionally, a file is not compatible with QuickTime. You will
need to install CCCP
when that happens.
What is
M4A?
Because of its exceptional performance and quality, Advanced
Audio Coding (AAC) is at the core of the MPEG-4,
3GPP and 3GPP2
specifications and is the audio codec of choice for Internet, wireless and digital
broadcast arenas. AAC provides audio encoding that compresses much more efficiently
than older formats, such as MP3,
yet delivers quality rivaling that of uncompressed CD audio.
To encode MPEG-4 audio, you need to have River
Past MPEG-4 Booster Pack in addition to your audio software.
Additional Requirements
To extract audio from MP4/M4V(MPEG-4 Video) video to M4A(MPEG-4 Audio) with River Past Audio Converter, you must have River Past MPEG-4 Booster Pack installed.
Launch River Past Audio Converter
Once River Past Audio Converter is installed properly, launch Audio Converter.
Add File
Click on the "Add File" button on the tool bar. The standard file open dialog appears. Select "MP4 - MPEG-4" in its "Files of type" combo box.
Select the file you want to convert and click "Open". The file will be added to the conversion file list.
Note: To convert from MP4 files, you must have Apple QuickTime installed.
River Past Audio Converter
Select output format
Use the setting panel on the bottom of the window to control the output format. Click on the toggle to the left of the "Format" label to expand the panel. Select "M4A - MPEG-4 Audio" as the "Audio Type".
Troubleshoot
If you have MPEG-4 Booster Pack installed, but don't see M4A as an output option, you have a problem with QuickTime installation.
Please make sure you have the latest QuickTime installed. Occasionally, QuickTime may be corrupted due to conflict with some other software. In any case, reinstalling QuickTime should fix this problem.
You can change the sample rate, channel (stereo or mono) and bits/sample, and bitrate.
Note: To convert to MPEG-4 audio, you must have River Past MPEG-4 Booster Pack installed.
Select output directory
Expand the "Output Directory" panel. Use the "Browse" button to select an output directory.
Convert
Click the "Convert" button on the tool bar.
River Past Audio Converter
