9

Destructive interference would effect what you hear, but that doesn't change the composition. You could do other things to make a performance or playback inaudible, like move very far away or put a jackhammer next to the listener. Interfere however you like, that won't change the composition, because the composition is purely conceptual.


8

You can do this. All you need to do is invert the signal, i.e. generate a waveform that is the exact negative of the input waveform and add it to the input so there is no signal left. This is how noise-cancelling headphones work. Then you add in your own signal. Why anybody would go to the trouble of doing this, is a completely different question.


4

As John Belzaguy said, this is much about science, I'll try my best to put that in a musical point of view. In theory, what you are are saying is yes: two waves can cancel each in the process called destructive interferences. This is the process used for tuning a guitar using harmonics. However, there are a few problems… Coherency of the waves In order to ...


4

You seem to be asking more than one question, or convoluting several ideas together to create this scenario in your mind. Almost everyone has offered an answer that addresses "cancellation", which would turn off the sound. But you have stated... "I think you could, given a sound source, to change a second sound source so that the sum of the ...


3

If you ever have a chance to play a very large pipe organ, give it a try. You will have difficulty playing until you get used to the latency of several tenths of a second. The 10ms figure was determined about 50 years ago when a new keyboard design was invented. In this design, currently used for computer keyboards and most music keyboards, the keys are ...


2

Your question pertains to physics. First of all, you mentioned using destructive interference to produce silence and backed your argument by the example of noise cancellation process in headphones. True but not always. In a 3D space, the sound waves are generated in all directions and in the form of longitudinal waves(in air) so this makes perfect noise ...


2

Can you change some composition I wrote to whatever music you want just by changing the timbre of the instruments? If the arbitrary timbre for the instruments must be fixed over the performance of the music, then no. For instance if you make a composition that consists of nothing but a single voice playing the same note, no choice of alternative timbre will ...


1

When you stop to realize a rock and roll or country music stage is often 40, 50 or 60 feet across the front of the stage, you might expect that latency between performers might become a real problem, but when every instrument is miked up or D.I.ed into the sound system and mixed the resulting sound has no noticeable latency between instruments because ...


1

The difference between rock-and-roll and country music, say, isn't just the instruments; they also tend to use different chord progressions. You can't change the chord progressions just by changing the timbre.


1

You can do this on an ordinary PC or Mac these days. There is even some free software out there. You can manipulate and overlay waveforms to your heart's content. You can choose from accurate-sounding musical instruments and write a full orchestral score, then play it back - all on the computer. You could easily make some of Mozart's early pieces sound like ...


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