.JAM File Extension

A JAM file is a CAD file created in the Jam Standard Test and Programming Language (STAPL) format, a standard file format used for programming PLDs (Programmable Logic Devices). It includes the data and algorithm needed to program a PLD. JAM files enable vendor-specific programming requirements to be communicated to PLD programmers in a recognized format.

JAM files are typically generated by a vendor-specific software program, referred to as the "Jam Composer." PLD vendors then distribute JAM files to customers (device programmers), who program and test a PLD using the "Jam Player." The Jam Player reads the JAM file and provides the facilities needed to program the device in a standard JTAG (Joint Test Action Group) chain. This process used to be carried out using separate command-line tools provided by Altera, but it is now encapsulated in Altera's Quartus design software.

NOTE: JAM files are stored in an ASCII text format. They can be compiled into .JBC byte-code files for a binary representation.

Audio recording or loop created with a Line 6 product such as the Spider Jam amp or JM4 Looper pedal; may include sounds for guitars, drums, and other instruments; can also include effects and other audio settings; used for saving loop audio on portable storage cards inserted in Line 6 devices.

JAM files can be converted to .WAV files using the Jam2Wav program.

Musical score saved in a human-readable, text-based format; represents notes and chords using text descriptions, such as "G7," "Bdim," and "Fmaj7."

JAM files can be played back in Pyva.net JAM using instrument voices from a software synthesizer. The data can also be output to a MIDI device. Since JAM files are text-based, they can be edited with a text editor.

JAM files can be used to play back audio samples, but do not contain actual audio data.

Modification or add-on for the Playstation 3 version of Unreal Tournament 3 (UT3); may contain modifications to the characters, objects, maps, or the gameplay itself; typically named "USERDATA.JAM."

JAM files must be saved on a memory card or USB flash drive and transferred to a PS3 console in order to work. They are not meant to be used on a PC.