Final answer:
Selective attention is the phase in the listening process that involves focusing attention on a specific sound or message.
Step-by-step explanation:
In the listening process, the phase that involves focusing attention on a specific sound or message is called selective attention.
Selective attention is the ability to filter out irrelevant sounds and focus on a particular sound or message. It helps us to concentrate on what we want to hear and ignore background noises or other distractions. For example, when listening to a conversation in a noisy room, selective attention allows us to focus on the person speaking and understand their message.