For my second project, I decided to create a system that would alter a pre-existing video utilizing an audio input, a concept that deviated from my first project, which created visual from scratch. My patch had multiple parts to it. One portion essentially created a system that served as a sort of green screen effect. The original video I found was a music video with a completely white set, which served well for the purposes of demonstrating my project.

I added an object that would transform the colors of the video by adding “gain”. I utilized chromakey in order to overlay another clip over where the white portions of the video would be. The effect I achieved was interesting, as the video wouldn’t overlay until the background would “gain” up to a white color, as I set the chromakey to white. The colors in the clip that weren’t white were dramatically transformed. The intensity of this effect was linked to a bass sound through the usage of a bandpass filter. On top of this, I added a delay system that was also linked to the bandpass filter. The following video is the result of all this.

For this project, I decided to create an audio visualizer. In the window, there is a background of particles that are rendered within a 3 dimensional plane. These particles rotate around and are sensitive to a specified bass frequency utilizing a bandpass filter. The particles shake and grow “brighter” the larger the amplitude of that specified bass. Along with the background particles, there is a rotating object in the middle of the screen. The colors can be customized as desired and they rotate and change in size based off the amplitude of a given track.

Within the presentation mode, the main object in the middle can be customized according to minimum and maximum size, although the volume of the track itself, which can also be adjusted, will also influence the size. Along with this, there is the option to loop a track and also to change the sensitivity the background particles have to the specified bass frequency.

Unfortunately, I was unable to figure out how to render the jit.window properly, as it would freeze my machine. Therefore, I decided to record the screen, which resulted in a poor video quality.

I made a patch that would take an audio signal and then process it utilizing pfft~. I routed both a rectangle and a sawtooth wave and had it oscillate over a range of frequencies. I then took that and applied a delay to it that could also be adjusted, so that it would play right after the dry audio signal.

I took a 27 second sound clip of an instrumental that I made and transformed the signal by convolving it with 4 different audio clips.

I used a loud clap for the impulse signal. The first sound was a clap within a glass enclosure inside of a bathroom. The second clap was recorded in a cluttered room. The third sample is a clip of MC Ride from the Death Grips screaming. The final sample is a snare that sounds a bit hollow. Each of these sounds created an interesting effect to the instrumental that I convolved them with.

I utilized a delay for a track along with a phasor to modify the audio.

I utilized a mastering process for this assignment. Firstly, I took a track I’ve been working on and did some basic mastering. This included some EQing, along with some limiting and compression.

I then exported the track as an mp3. Afterwards, I repeated the process, using the same mastering settings, 30 times. By doing so, the track would become more and more compressed each time, and the tweaks with the EQ would also become more and more prominent with each iteration.

Along with this, the sound quality would decrease due to it being exported as an mp3 repeatedly.