Tremor is a fixed-point version of the Vorbis decoder for those platforms without floating point operations.
It is a software library that decodes the Vorbis audio format.
Tremor uses fixed-point and movable-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 Vorbis format.
Tremor was originally developed by Xiph.Org as a part of a contract for the Iomega HipZip,[citation needed] but was since opened up to encourage wider use of the Vorbis format.