Tremor (software)

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Tremor by the Xiph.Org Foundation is a fixed-point version of the Ogg Vorbis decoder for those platforms that can't do floating point math.

It is a software library that decodes the Vorbis audio format. It is open source software released under a BSD-style license. Tremor uses fixed-point arithmetic numeric representations in its implementation so that it can be used by small embedded devices (which typically do not have floating-point processors). Thus, Tremor enables small embedded devices to play audio files stored in the Ogg Vorbis format. Tremor was originally developed by Xiph.org as a part of a contract for the Iomega HipZip, but was since opened up to encourage wider use of the Ogg Vorbis format. Almost all hardware devices that can play Vorbis, and many software implementations on embedded devices (such as mobile phones) use Tremor or some descendant.