Fairlight

Match the noise to the tool: Noise Reduction FX with a learned noise print for steady hiss and hum, Studio's Voice Isolation for wind, traffic and changing backgrounds, a gate for noise between words, and EQ or the De-Hummer for hiss and mains hum. The wrong tool is why cleanup sounds robotic.

Match the symptom first. Waveforms visible but meters dead: Clip Attributes, codec or clip volume. Meters moving but silent: DIM, master mute, bus routing or the output device in Preferences. Source Viewer fine but timeline silent: track mutes and routing. Each case has its own section below.

Resolve 21 transcribes two ways: per-clip from the Media Pool or whole-timeline for subtitles. You can edit the transcript, export SRT and work in more languages than Resolve 20 supported. Plus the usual reasons transcription keeps failing and their fixes.

Mute a clip, a whole track or just part of a clip, and split audio from video three ways: unlink, the Alt/Option override, or extracting audio to a separate file. The right method depends on whether the change is temporary or permanent.