CTA: In the Lab—Phase and Time Pt. 1

Today we introduce a new feature, In the Lab. My hope for ITL is that we can get a little more technical and a little more visual. Sometimes it’s frustrating to write about things, knowing that a visual would be much simpler. So today, we’re going to be looking at the concepts of phase and time relationships. 

The video is pretty self-explanatory, but there are a few things that I realized after I finished editing. It should be noted that if I had continued to add delay to the 440 Hz tone, it would keep cycling around from out of phase to into phase. Because the wave has a time constant—which is about 1.15 msec—multiples of that time will re-align the phase. And yes, I know that’s not the exact time, but it’s as close as I can get with that delay plug-in.

Also, it doesn’t take much phase shift to radically alter the sound. And phase shift isn’t always bad. At some point, I’ll demo the process to fake a mono source into stereo by adding a little delay. However, for certain sounds—a snare drum for example—can be radically changed for the worse by just a little bit of phase shift. We’ll tackle that in another episode as well. 

Leave a comment if you find this kind of video useful. While fun to produce, they are a bit of work, and I want to be sure someone is getting something out of it. More to come; thanks for watching and reading!

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