Transient in physics and electronics is actually not inherently positive or negative by definition.
Instead, the word transient itself just simply describes something, which is temporary or short lived, such as a brief surge or drop.
Although when you're measuring, transients, they can also be described in the following ways depending on the context, which include.
In electrical engineering;/
For polarity, "Positive vs Negative", a transient can carry a positive or a negative polarity, depending on the direction of the spike or the dip.
An "impulsive" transient is a sudden unipolar surge of energy, which is either purely positive or purely negative.
And in terms of damage, both types are destructive.
Positive transients act as power spikes, which push high voltage into equipment, and negative transients, (dips or sags) can cause erratic system behavior, rebooting or stalling.
And in music and audio production, transients are the initial, rapid bursts of energy at the beginning f a sound like a drum hit or a pop in a vocal.
The positive impact of transients in music and audio production are that they give sounds their punch, clarity and definition.
The negative impact of the transients in music and audio production are that if they are left unmanaged, overly loud transients can cause audio clipping or harsh distortion, which is also why audio engineers use compression or limiters to tame them.