Peace Treaty 2024 (Binaural Recording)

The performance of a synthesizer system with 24 channel speakers was recorded binaurally on October 26, 2024. Its three-dimensional sound is best enjoyed with headphones. The synthesizer system consisted of a computer, universal serial bus (USB) device, line selector, buffer, filter, and mixer. The speaker arrangement is almost the same as when "Hate Suppression," a tune from the album Random Noise Stimulation, was recorded on September 9, 2024. However, the height of the rear speakers from the floor was raised from 15.5 cm to 22.5 cm. A dummy head microphone was placed at the center of gravity of the rectangle formed by the speakers for the recording. The filter used a multiple synthesizer, digital delay, whitening filter, distortion circuit, and biquad circuit. The whitening filter and distortion circuit were cascaded. The multiple synthesizer mainly consisted of a Wien bridge oscillator, multiplier, biquad circuit, and voltage control circuit. This synthesizer was formed by connecting a computer synthesizer. The computer synthesizer was formed by connecting a computer and a USB device via a USB interface. The multiple synthesizer replaced the Wien bridge oscillator, which can modulate the input signal with a whitening filter. The output signal of the whitening filter was input to the biquad circuit of the multiple synthesizer. The sensitivity of the biquad circuit was increased to produce a hard timbre. Eight front speakers played the output signal of the multiple synthesizer; eight left and right speakers played the output signal of the digital delay and biquad circuit; and eight rear speakers played the output signal of the cascaded circuit with a whitening filter and distortion circuit. Each of the eight speakers used a mixer to move the sound source, thus playing back three-dimensional sound in the original sound field. To improve sound quality, Fostex P800K was used for the front speaker units, P1000K for the left and right speaker units, and FE103NV2 for the rear speaker units.