![show waveform after effects show waveform after effects](https://d29rinwu2hi5i3.cloudfront.net/article_media/51fe2eb6-5a75-4062-9b46-a29b69f5643f/figure_6_-_step_3a.jpg)
![show waveform after effects show waveform after effects](https://www.theinsidetips.com/wp-content/uploads/2020/08/rectified.jpg)
Starting with QLab 4.1, these options are available whether or not the cue contains slices. Alternately, you can select Infinite loop, right below Play count, to loop the sound indefinitely. You can change the play count to any whole number to loop the sound file that number of times. The default is 1, meaning that the sound file will play once through and then stop. Play count is the number of times that the sound file will be played when the cue is run.
![show waveform after effects show waveform after effects](https://www.digitalartsonline.co.uk/cmsdata/slideshow/3539490/Step01.jpg)
In the image below, two sources – labelled Sound 1 and 2 – are aligned one above the other. When the same pitch or frequency sound wave is produced from two sources, a pattern of interference is produced. Sound waves and pitchīecause sound travels outwards from a central source, waves interact in interesting patterns. A sound wave with the beat pattern in diagram D will have a volume that varies at a regular rate – you can hear a pulse or flutter in the sound. The resulting wave has points of constructive interference and destructive interference. When we hear the sound of two different musical notes, as shown in diagram C, we hear a complex waveform we think of as harmony.ĭiagram D shows beats – when two sound waves are nearly the same frequency but slightly different. The result of any combination of sound waves is simply the addition of the various waves. They detect the sounds coming into the ear and produce sounds with equal volume but with the peaks and troughs reversed, resulting in near silence.
![show waveform after effects show waveform after effects](https://boostersilent.weebly.com/uploads/1/2/3/7/123714928/203639377.png)
Noise-cancelling headphones work on this principle. The result is a cancellation of the waves. The result is a wave that has twice the amplitude of the original waves so the sound wave will be twice as loud.ĭestructive interference is when similar waves line up peak to trough as in diagram B. With constructive interference, two waves with the same frequency and amplitude line up – the peaks line up with peaks and troughs with troughs as in diagram A above.