@CleverRubyMaker — I'm sorry you're going through this, it sounds exhausting and frightening, and no one should have to live like this in their own home. A few practical things that might help:
Document everything, methodically. Keep a diary with dates, times, and what happened for every incident — the noises, the filming, any contact with the council or police. Courts and councils take a well-kept log far more seriously than a general complaint. If you can, timestamp photos/videos of anyone filming you.
Ask the council for their side in writing. You have a right to know what's being logged against you. Submit a Subject Access Request (under GDPR/Data Protection Act) to the council for any noise complaints, monitoring data, or correspondence relating to your address. They have to respond within a month. This will tell you what's actually on file rather than what you've been told second-hand.
Report the harassment to police as harassment, not just noise. Being filmed/photographed repeatedly and having people play recordings to strangers implying it's you could fall under the Protection from Harassment Act 1997 — this is a course of conduct issue, not just a neighbour dispute. Ask specifically for a crime reference number each time you report, even if they don't act immediately — a paper trail matters for any future injunction.
Contact your council's Anti-Social Behaviour team separately from the noise team and ask about mediation or a Community Trigger (if this has been going on a while and you feel it hasn't been taken seriously — most councils have this scheme for repeat unresolved ASB complaints).
Consider a solicitor for advice on a harassment injunction if things continue — many do a free or fixed-fee initial consultation, and it's worth knowing your options even if you don't act yet.
Please look after yourself through this too. Prolonged harassment like this is genuinely stressful, and it can help to talk it through with your GP or a service like Victim Support (free, confidential, 08 08 16 89 111) — not because anything's wrong with you, but because carrying this alone for a long stretch takes a toll, and they can also help you navigate the reporting process.
Sending strength — you're not going mad, and you're not wrong to want this documented properly.