Spatialisation Specialising and Exhibiting

Interference live and the harmonic issues

Rocco Wallis 27th November 202130th January 2022 0 Comments

I want to perform my spatialisation piece live, but doing so creates a few issues. Mainly the lack of harmony and individual notes which the edited version has a plethora of.

My first thought was to create a resonance in front of the mic which would turn into harmony. I tried a lot of different metallic objects and exciters to get this sound.

Using my metal bottle as a resonator with my hand being the exciter. This gave a great tone, but unfortunately felt too human and sudden, what i wanted was a constant tone.

using my metal bottle again with a minature hammer, i used this to spin in circles on the bottom to create a constant tone. while this did work, the tone was faint and didnt pitch shift too well.

Using my metal bottle as a resonator with the speaker being the exciter. This did work but was very faint, but was quite effective.

i could put the bottle in an orientation like this and walk away. The video below is what this sounds like.

I attempted to use my handpan because its extremely resonant, but couldnt get anything good from it.

Because none of these really worked, i attempted my second idea; to play a constant tone that would be pitch shifted. Firstly to see if this worked, i got a tone generator on my phone and played it into the microphone and this worked really well. Due to this, i went onto ableton and added a constant drone to the piece, which i would remove to export but keep when played live. This gave the piece harmony again, but was still mostly noise.

To get the sound i want, i need to mix the two ideas. Im thinking of overlapping them to really combine the harmony and noise i want. This also means it could be an octophonic sound piece instead of quadraphonic.

Rocco’s blog

Interference live and the harmonic issues

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