Lyric

The first and third tracks of this work are simple vocal compositions, while the second track is a more complicated instrumental composition. The timbre is hard, but the work is experimental, introducing elements of popularity. This time, the synthesizer system consists of a computer, a universal serial bus (USB) device, four filters, a mixer, and a USB audio interface. The 1st and 3rd tracks are multiple recordings made with the system. The computer is connected to the USB device and USB audio interface via a USB interface. The USB device is connected to the buffer, which outputs five pulse-width modulation (PWM) signals and inputs them to the buffer, which outputs ten PWM signals. These PWM signals are used as the input and control signals of the filter and the control signal of the mixer. The output signal of the filter is mainly input to the mixer. The mixer has four inputs and two outputs. The localization of the sound image of the two input signals can be controlled using a control signal. The sequencer on the computer can play a waveform audio (WAV) file, whose signal is output from the USB audio interface into the mixer. The first track is played using two distorted random signals and a modulated PWM signal by manually manipulating the three filters. The modulated PWM signal changes slowly from a lower frequency to a higher frequency. The sound is harsh noise but includes elements of death metal and industrial music through the addition of death voices and metal percussion in multiple recordings. The second track plays back a WAV file of a conventional synthesizer system performance recorded on a computer sequencer, and the filter is manually manipulated. The timbres of the output signal of the USB audio interface and the filter are complicated. This tune is noise music, similar to electronic music. The 3rd track uses the same method as the 2nd track to play the WAV file and manually manipulate the three filters. The sound is played using the output signal of a USB audio interface, distorted random signals, and an oscillating sound. The sound is a fusion of strange noise and harsh noise that is made more aggressive by the addition of multi-recorded death voices, metal percussion, and drums.