Together with 9 other participants, we joined the masterclass of CM Hausswolff and Mike Harding to collaborate on our version of freq_out.
freq_out is a conceptual project by CM Hauswolff. It consists of a sound installation comprising twelve individual sound works, each utilising a specific frequency range, made on site, and amplified to act as a single, generative sound-space.
For the freq_out masterclass, the participants have been allotted ranges of frequency within the audible sound spectrum. Participant number one has been allotted 0–25 Hz, number two 25–65 Hz, and so on. Over a period of four days, their task is to compose one sound work each. The work cannot contain any sounds beyond the allotted frequency range, but can be of any length and is played back as a loop. The work consists of 12 smaller works joined together into a whole. Thus, when the works are played back they are all played at once, through twelve different sounds systems.
My frequency range was 60 to 95Hz: very low frequencies / very long wavelengths.
As my idea was to work with recorded sounds, I explored Amsterdam in search of these low frequencies. With an hydrophone and the zoom H4, I first recorded sounds from the harbour: ferries, under water resonances, electric signals from generators, and others. Because of the particular properties of long waves, I had to precise my researches and the field recordings, in order to gain quality in the material itself. As long wavelengths are more physical than audible, I had to find resonances in architectural structures, especially the ones that can propagate ground waves. After finding them in the iron structure of bridges, I worked and edited the raw material in order to fit the requirements of the exercise. The equalizer filters were of course the first tools to manipulated the frequencies range. And as I wanted my approach to be minimal, I only add few other filters to enhance the inner qualities of the waves. The final piece kept the time line of the original material, and the sequence was repeated three times with volume and phasing differential. The sound piece was played thought two speakers playing with the movement of the waves between the two.
The final collaborative piece resulted in a great way and was performed at the opening of the Sonic Acts Festival, on Februray 21st 2012 in Steim, Amstedam.