M4A to OGG: Convert Audio from M4A(MPEG-4 Audio) to OGG(OGG Vorbis Audio) with River Past Audio Converter, M4A2OGG converter, conversion
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 convert MPEG-4 audio to other formats, you need to have Apple QuickTime
installed.
What is
OGG?
Ogg Vorbis (sometimes just called Vorbis)
is an open source patent-free audio compression format, developed as a replacement
for proprietary digital audio encoding formats, such as MP3,
VQF, and AAC.
Vorbis files (which have an .ogg extension) compress to a smaller size than
MP3 files, which reduces bandwidth and storage requirements. According to many
reports, Vorbis provides better sound quality than MP3.
To encode OGG Vorbis audio with River Past software, please have
either Torbias' OGG
DirectShow Filters or Radlight
Ogg Media Filters 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 "M4A - MPEG-4 Audio" 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.
If you cannot add the M4A file, you may need to install QuickTime. We use QuickTime to decode compressed MPEG-4 Audio files.
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 "OGG - OGG Audio" as the "Audio Type".
Note: To convert to OGG files, you must have OGG Vorbis DirectShow filters installed.
You can change the compressor, and depending on the compressor, you can change the sample rate, channel (stereo or mono), bits/sample, and bitrate.
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
