Audio on a timeline can be muted, or disabled, or simply gain taken down to infinity. Either by keyframing the audio track or by adding a couple edit points on either 'side' of the issue, then doing the above.

Bestaudio redaction software

I am a public records officer (or Public Disclosure Officer) and need to learn how to redact video and audio of certain things. Things like blurring out faces, muting names of victims or sensitive info like social security numbers or drivers license numbers.