An industry standard file format that contains raw audio data plus additional format, control, and annotation information. Typically encountered as FILENAME.WAV

A signal, either sampled (digitally recorded) or periodic, being generated by an oscillator. Also, the graphic representation of this signal, as on a computer screen. Each waveform has its own unique harmonic content. See oscillator.

A set of numbers stored in memory and used to generate a waveform. The wavetable synth on a soundcard typically plays sounds whose digital representations have been stored in a wavetable.

wavetable lookup
The process of reading the numbers in a wavetable (not necessarily in linear order from beginning to end) and sending them to a voice channel

Wavetable Synthesis
Sound generation via waveshapes stored in a non-volatile memory. These can usually be edited.

Consisting entirely of processed sound. The output of an effects device is 100% wet when only the output of the processor itself is being heard, with none of the dry (unprocessed) signal; also see dry.

Windows Media Audio (WMA)
Is part of Microsoft's Windows Media audio and video software, which includes a digital rights management system to secure the files. WMA quality remains quite high even at low bitrates, and Microsoft claims WMA can reproduce CD-quality audio as low as 64kbps, or roughly twice the compression of MP3. WMA is downloadable format, and in conjunction with Microsoft's Advanced Streaming Format (ASF), WMA can also be streamed to listeners. In fact, Windows Media competes directly with the more established RealAudio format and is quickly gaining in popularity. Many portable devices already support WMA, and the format is sure to be a major player in the future of digital audio.


Windows Media Device Manager is a Microsoft software component that enables Windows applications to share and transfer files to and from non-PC devices, such as portable MP3 players, in a standardized way. The use of a common software component enables greater software and hardware compatibility and support.      

A number of bytes processed as a unit and conveying a quantum of information in communication and computer work. Also, a single number (sampled word) that represents the instantaneous amplitude of a sampled sound at a particular moment. In 8-bit recording, a sample word contains one byte; in 16-bit recording, each word is a two-byte number.

Clock signal required by digital audio interfaces to ensure the sampling rates of the connected devices run in absolute sync. When two devices are connected via a standard audio interface, wordclock is transmitted via the audio circuit. If you want more than two digital audio devices to communicate with each other, in most cases you will have to use separate wordclock ports for synchronization.