A software bug is an error, flaw, mistake, failure, or fault in a computer program or system that produces an incorrect or unexpected result, or causes it to behave in unintended ways. Software bug - Wikipedia, the free encyclopedia

A glitch is a short-lived fault in a system. It is often used to describe a transient fault that corrects itself, and is therefore difficult to troubleshoot. The term is particularly common in the computing and electronics industries, and in circuit bending, as well as among players of video games, although it is applied to all types of systems including human organizations and nature.
Glitch - Wikipedia, the free encyclopedia

A hallucination is a perception in the absence of a stimulus.
Hallucination - Wikipedia, the free encyclopedia

As I can see, the words bugs and glitches in English are not associated with psyche or psychology. As Артем is a human being and not a robot (I suppose so, I haven’t read the book) then his hearing the noise should be called hallucination.

In Russian глюк denotes a fault both in computer programs/systems and in human mental processes. The former is neutral and is commonly used being at the same time kind of professional slang with synonymous words сбой, ошибка. The latter is obviously kind of young people’s slang, with synonymous words галлюцинация (neutral), галюники (slang).

Молодёжный сленг — Википедия