the negative rate of change of phase with frequency. Expressed in seconds. ~~~~~ go back with your browser back button. If lost, go home
Common measure of phase response given by the derivative of phase vs. frequency response, i. e a linear phase response differentiates to a constant group delay response, which in turn means a fixed overall delay for all frequency components.
Mathematically group delay is the derivative of the phase, in radians, with respect to frequency. Filters cause such a delay. Group delay can also mean an average of this delay over some frequency band.
(absolute) The propagation time of a signal through the filter. Group delay is proportional to the slope of the phase shift versus frequency.
The first derivative of the phase versus frequency response of a network, component, or transmission line.
The variation in time of different frequencies through a given system
The instantaneous rate of change of phase with respect to frequency of a filter, usually shown in a phase versus frequency plot.
Delay of color components to picture components of signal caused by movement through device which has non-linear frequency response components; i.e., inductors and capacitors.
The rate of change of the total phase shift with respect to angular frequency, d /d , through a device or transmission medium, where is the total phase shift, and is the angular frequency equal to 2f , where f is the frequency. Learn more about Group Delay...
The frequency-dependent variation in signal delivery time from an audio component. In loudspeaker Systems, this can result from crossover anomalies or differences in listening distances. Many speaker manufacturers "time align" the drivers to compensate for group-delay problems, but these solutions only work if the listener is locked into a specific location and the system is auditioned from very close up. At normal listening distances, the group delay from any decent loudspeaker system is inaudible.
The difference in transmission time between the highest and lowest of several frequencies through a device, circuit or system.
