SeedCodec is a collection of compression and decompression routines for standard seismic data formats in Java. The current supported formats are Steim1 and Steim2 (compression and decompression), DWSSN, CDSN, SRO and the simple float, int, double, short and 24 bit types.

These are only the decompression routines, and are independent of a particular file type. In particular, other than focusing on the data compression algorithms defined as defined in SEED, there is no direct connection to with SEED or miniSEED.

The goal is to support all the formats available within seed, but submissions from the broader community are needed to accomplish this.

Please see the seedCodec project on Github,, for more information and to get the latest release,


Manager: Philip Crotwell