Fence as sound insulation towards the neighbor. What inhibits sound the best?

You’re not seriously telling me that the elders in your family are all fighting over paying every bill?

Yes, they usually push ahead when the waiter comes, relying on the right of the elder. The younger ones often secretly go to the bar with the credit card in pubs to get ahead of the others. It’s already getting out of hand like a sport.

You’re not going to tell me that the old folks in your family are fighting over paying all the bills, are you?

Ours have to be forced to pay for weekend trips and in return are surprisingly forced to attend an overpriced thank-you dinner. So, exactly the opposite.

To the OP: Is your neighbor aware of your eldest’s hearing impairment? You can point out special circumstances here.

It’s nice of you to still think about noise protection – if the relationship isn’t already strained – I would invite the neighbor for a coffee and say that you want to take on the work and costs to protect him(!), so a contribution would be very nice. What else could he say except "no"?

Just because some advisors here know an excess of strange people doesn’t mean your neighbor necessarily belongs to them.

( Doesn’t he have a hearing aid that he can turn down? )

Unfortunately, I fear that the effectiveness of such measures is overrated if an optically acceptable building height is chosen.

A conversation would certainly be the first step. In the end, it turns out that the neighbor has never noticed the children because he is half deaf himself...

Insanity^^ 4 pages and only one single answer to the actual question

On the topic and to the thread starter:
When it comes to soundproofing against children's screams (rather high frequencies), you have it relatively easy because no particularly difficult or heavy constructions are necessary for that.
Sound propagates relatively linearly (simplified) and can therefore be deflected and redirected with simple soundproof constructions to such an extent that most of it goes above the neighbor's perception height. We will leave aside the diffracted sound at the overcoming point for now, as that would be too far-reaching.

However, the height of the enclosure is important, and you should discuss this with the neighbor. Depending on the country, only 1.5m directly on the boundary is allowed; every additional cm must be paid for by an additional cm of distance from the boundary.

Oops, I misunderstood the thing about forbidden links... Sorry to the admin. For understanding: Yesterday I posted two links to what I thought were neutral information, which were now deleted by the admin with a warning. My mistake, I had misunderstood and thought it was about advertising and not about all kinds of links. For those who still want this information, it was a file called "Sichtschutz_Schallschutz_Praxisleitfaden.pdf", found on the homepage of the Regierungspräsidien Baden Württemberg. Is that okay like this? I couldn't find a direct rule against it now?

The reason for bans on direct links is usually only the declining ranking of one's own site in search engines when many other sites are referenced. The indication of what to enter best at google & Co is, as far as I know, harmless in contrast.