Any attractive ways to reduce echo in an extension with vaulted ceilings?

[Alfr8]

We had an extension done last year and the acoustics are driving me potty (especially when we have family over). Vaulted ceilings and hard surfaces mean it echoes horribly. I've looked online for acoustic panels but everything looks like it belongs in an office, not a home. Has anyone found anything that actually looks nice? I've been thinking about trying to make my own from wool felt but not sure if that's mad.

Carpets rather than hard floors would help a lot.

Soft furnishings. Lots of rugs, cushions, soft chairs.

Cover up the hard surfaces? More soft furnishings? Cushions, throws, floor rugs, maybe even a couple of wall hangings?

I've just done this in a room with a piano. I put wood battens on a wall, then put some wadding and covered it in a linen fabric.

It's not a magic bullet but it helps.

Acoustic sound baffles. e.g. SilentSpace Circle Acoustic Rafts - Multiple Sizes – SONIO, Acoustic Slatted Wall Panel 2400mm x 600mm - Light Oak x 1 panel

A restaurant I went to recently had that sound proofing foam you used to see in recording studios (like a foamy egg box) stuck to the underside of all the tables. It made a massive difference but obviously depends on whether you've got a hard surface like that.

rugs on the floor

get the office-style acoustic panels or just cheap egg-crate foam but behind pictures or wall hangings.

Oh and curtains at the windows rather than blinds.

Thanks everyone, really helpful. We've got rugs but want to steer clear of curtains in the kitchen/dining room as it doesn't feel right.
@CatherinedeBourgh That's interesting about the battens and linen...did they make much of a difference to conversation?
I've been reading about wool felt being good for sound absorption and wondering about making some kind of wall art from it. Might experiment over the Summer.

check these out @Alfr8 they are beautiful, fun and they work (they also come in several colours so you can decide on your own weather!)

https://www.woollyshepherd.co.uk/acoustic-clouds/