Which technique is commonly used for managing feedback in audio systems?

Managing feedback in audio systems is critical to ensuring clear and undistorted sound. Gain adjustments are a primary technique used to mitigate feedback. Feedback often occurs when sound from a speaker is picked up by a nearby microphone, creating a loop that amplifies the sound continuously until it causes unwanted noise or screeching. By lowering the gain on the microphone or the overall system, the likelihood of feedback can be significantly reduced.

This technique directly addresses the root cause of feedback by controlling the level of amplification, allowing the system to operate effectively without unintentionally reinforcing the sound that leads to feedback. Although other techniques, such as volume normalization and dynamic range compression, can play a role in overall sound management and quality, they are not specifically aimed at feedback control like gain adjustments. Time stretching does not pertain to feedback management and is more related to audio manipulation techniques in digital audio processing.