There Is No Absolute And Definitive Truth

The performance of a synthesizer system with 24 channel speakers was recorded binaurally on November 16, 2024. Please enjoy the three-dimensional sound using headphones. The synthesizer system consists of a computer, universal serial bus (USB) device, line selector, buffer, filter, and mixer. The speaker arrangement is almost the same as the one used for "Hate Suppression," a tune from the album "Random Noise Stimulation," which was recorded on September 9, 2024. However, the rear speaker's height from the floor was raised from 15.5 cm to 22 cm. A dummy head microphone was placed at the rectangular center of gravity formed by the speakers for recording. The filter uses a multiple synthesizer, digital delay, whitening filter, biquad circuit, and state-variable filter. Tracks 1 and 2 are the same, but the first track uses a whitening filter, and the second track uses a digital delay. The multiple synthesizer mainly consists of a whitening filter, Wien-bridge oscillator, multiplier, biquad circuit, and voltage control circuit. The input signal is inputted into a circuit that cascades a whitening filter and Wien-bridge oscillator. This Wien-bridge oscillator can modulate the input signal. A multiple synthesizer is formed by connecting a computer synthesizer via a buffer and line selector. The computer synthesizer is formed by connecting a computer to a USB device via a USB interface. A multiple synthesizer can conduct sound synthesis with a voltage-controlled circuit using the output signals of two multipliers and a biquad circuit. Because the output of the whitening filter is a random signal, the timbre of this synthesizer is harsh. Eight front speakers play the output signal of the multiple synthesizer, and eight back speakers play the output signal of the state-variable filter. The eight left and right speakers play the output signal of the whitening filter and biquad circuit on the first track and the digital delay and biquad circuit on the second track. Each of the eight speakers uses a mixer to move the sound source, thus playing back three-dimensional sound into the original sound field. To improve the sound quality, Fostex P1000K is used for the front speaker units, FE103NV2 for the left and right speaker units, and FE166NV2 for the rear speaker units. The third track is a line recording. Please listen to it using headphones to check the difference in the localization of the sound image between the binaural and line recordings.