When should a good microphone be used during a presentation?

Using a good microphone during a presentation is crucial to ensure that all audio is clearly heard through the sound system. This is particularly important in environments where the speaker is addressing larger audiences or where background noise may be present. A quality microphone enhances sound clarity, minimizes distortion, and ensures that audience members at the back of the room can hear every word being spoken without straining. This focus on audio clarity is vital for effective communication, which is fundamental for engagement and comprehension during any presentation.

In contrast, the other options suggest inappropriate scenarios for microphone use. Only using a microphone for small groups may overlook situations where even a few extra people require clear audio. Insisting on using a microphone only when the speaker is very close to the audience indicates a misunderstanding of how audio systems function, as they should facilitate communication despite distance. Lastly, avoiding the use of visual aids does not relate to microphone usage, as both audio and visual aids can complement each other in enhancing the overall impact of a presentation.