Audio Formats

Last Updated: Apr 25, 2014 01:20PM PDT
You can encode audio in many formats in Sorenson Squeeze. The format you choose affect the available quality of your audio, the possible file sizes for typical quality, and the compatibility to play back on a specific device or software.

AAC - Advanced Audio Coding - is the audio codec used in MP4 and designed to be the successor to MP3 audio. AAC has greater sound quality than MP3 files encoded at the same bit rate. AAC is also used in apple's M4A audio format (see below).
ATSC A/52 (AC3)
Originally developed by Dolby Laboratories and named “Dolby Digital” the AC-3 format was adopted by the Advanced Television Systems Committee (ATSC) as part of the HD video standard in the United States. AC3 audio is used in DVD and Blu-ray audio.
M4A (M4A)
MPEG-4 Audio is a MPEG-4 file with only an audio stream. M4A files are used in Apple products such as iPods, iPhones, and iPads. Sorenson Squeeze supports exporting a M4A file with the AAC or AAC Plus audio codecs.
MP3 (MP3)
MPEG Audio Layer 3 was developed as part of the MPEG video standard and has become a highly popular format for music files used in a wide variety of portable media players and cell phones.
Ogg Vorbis Audio (OGG)
A Vorbis audio file which uses a Vorbis codec audio stream in a Ogg file format container. Both the Ogg file container and the Vorbis audio codec are open standards maintained by Foundation. Vorbis audio has a higher quality than MP3 audio and is compatible to AAC audio and WMA audio.
QuickTime Exporters (various)
New to Squeeze 6 is the ability to use QuickTime exporter plug-ins to export a variety of audio file types such as AIFF and WAV files. AIFF was developed by Apple and is more commonly used on Macs. WAV files are a very common uncompressed audio format.
Video formats such as MPEG, MP4, MOV, and WMV can also be used to create audio files when using audio-only source files. MPEG and WMV presets may change the file extensions to “M2A” “AC3” or “WMA” respectively for audio only files depending on the preset codec options.
Note: The quality of your original audio file will determine the quality of your output from Squeeze.
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