Developed by the International Voice Association, this is a standardized file format for digitized speech. Digital Speech Standard files store information in a high-compression format. You can record an insert or overwrite the sound; the file can also be filled with metadata. This format offers two modes: “Overwrite” and “Enable”. Digital Speech Standard allows for creating voice files suitable for sending via e-mail. This format is powered by IBM ViaVoice software, which enables speech recognition.

caf

Core Audio Format

This audio file container was created by Apples developers. CAF incorporates a huge amount of information: the artists name, the songs duration, the names of the album and track. In terms of size, files of the CAFformat can exceed 4 GB. After its emergence in 2005, Core Audio Format replaced AIFF and WAV. It has a lower compression ratio, so the quality of audio does not suffer as a result of compression. CAF files are often used to create various sound effects.