56
Metering
Or level metering. Means the visualization of volume
relations of an audio signal.
Pitch
In the field of audio techniques, this means the difference
of a sample rate from a pre-defined one. If several digital
audio devices are present, this fluctuation of sample rate
has to be supported by all devices.
Routing
This word describes which paths on switches audio signals
and clock signals take within a system.
Sample rate
In order to convert analog audio signals into digital audio
data, they are chopped into a time grid. In this rate, the
volume of the audio signal is measure, e.g. 44100 times a
second. The smaller the grid, the better is the resulting
audio quality.
S/PDIF
S/PDIF stands for “Sony Philips Digital Interface” and was
developed by the companies Sony and Philips. With it a
digital audio signal is transported either with a light
conductor cable (TOSLINK) or a cinch coaxial cable.
WDM
WDM stands for “Windows™ Driver Model” and is an
extensive driver model developed by the company
Microsoft. Other drivers can build upon this. A derivation
of it is used, to handle digital audio data within the
computer – see Direct X.
