ASF to AIF: Extract Audio from ASF(Advanced Streaming Format) Video to AIF(AIFF/AIFC Apple Audio) with River Past Audio Converter, ASF2AIF converter, conversion
What is
ASF?
Advanced Systems Format (formerly Advanced Streaming Format,
Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially
meant for streaming
media. ASF is part of the Windows Media framework.
The format does not specify how (i.e. with which codec) the video or audio should be encoded; it just
specifies the structure of the video/audio stream. This is similar to the
function performed by the QuickTime, AVI, or Ogg container
formats. One of the objectives of ASF was to support playback from digital media servers, HTTP servers, and local storage
devices such as hard
disk drives.
What is
AIF?
Short for Audio
Interchange File Format, a common format for storing and transmitting sampled
sound. The format was developed by Apple Computer and is the standard audio
format for Macintosh computers. It is
also used by Silicon Graphics Incorporated
(SGI).
The AIFF format is uncompressed so AIFF files tend to be large. However,
there is another format called AIFF-Compressed (AIFF-C or AIFC) that supports
compression ratios as high as 6:1.
AIFF files generally end with an .AIF or .IEF extension.
AIFC files generally end with an .AIFC extension.
AIFF and AIFC are standard audio format used on MacOS systems. AIFF is not
compressed. AIFC is compressed.
To encode AIF audio, please make sure Apple QuickTime is
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 "ASF - Advanced Streaming Format" 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.
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 "AIF - Audio Interchanged File Format" as the "Audio Type".
Troubleshoot
If you don't see the AIF output option, you have a problem with your QuickTime installation.
You need to have the latest QuickTime installed. Occasionally, QuickTime may be corrupted. In any case, reinstall QuickTime should fix this problem.
You can change the compressor, and depending on the compressor, you can change the sample rate, channel (stereo or mono), bits/sample, and bitrate.
When "16 bit LPCM" or "16 bit PCM" is selected as the "Compressor", the file is uncompressed, and satisfy the original AIFF specification. When other compressors are used, the file is compressed and is considered to be an AIFC file.
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
