When the peaks from one wave are exactly matched by the troughs of a second wave, the two waves are said to be out of phase. If these two waves collide and have the same amplitude, they will mutually cancel. That is, for every positive point along one wave, the second wave would have a negative counterpart of the same magnitude. When these points are added together, they cancel leaving no net amplitude. This kind of phenomena is often called destructive interference.
Two related alternating signals with opposing polarity.
When positive and negative excursions of two sound waves or electrical signals move in opposite directions to cancel one another.
An audio signal that has its waveform 180 degrees out of phase with another.
Waves of the same frequency, but different time relation, that do not pass through their zero and maximum points at the same instant.
1) Being similar to another signal in amplitude, frequency and wave shape but being offset in time by part of a cycle. 2) 180 degrees out of phase or having opposite polarity.
The condition of two or more cyclic motions which are not at the same part of their cycles at the same instant. Also called out of step. Compare in phase. Two or more cycles motions which are at the same part of their cycles at the same instant are said to be in phase or in step.
The state wherein a structure in motion is not at the same frequency as the ground motion; or where equipment in a building is at a different frequency from the structure.
When speakers are mounted in reverse polarity, i.e., one speaker is wired +/+ and -/- from the amp and the other is wired +/- and -/+. Bass response will be very thin due to cancellation.
Two signals are 'out of phase' when certain frequencies are cancelled due to the reversal of polarity of one signal relative to another.
A term that relates to a drive shaft having two universal joints that are not in phase with each other, producing a jouncing or jerking motion as the drive shaft turns.
