Have you looked into acoustic art panels? Something like this https://www.gikacoustics.com/product-category/acoustic-art-panels/ . I don't know anything about this company, it was just the first one that came up when I searched. You can probably have panels made that match your wall color, if you don't want to introduce much color or patterns.

Quilts work. You can generally get them in anything from folksy to contemporary. Another other option is styrofoam panels covered with fabric or wallpaper. Something like this, maybe

Strawberry Fabric, Strawberry Cotton Fabric, Muslin, Farm, Large Print Fabric, Block Print Fabric, Fabric Panel, Crafts, Quilt, Quilting - Etsy

But with fabric, you have a huge range of choices.

Years ago, my parents did peel and stick cork tiles on the wall between two bedrooms.

Lots of good ideas in this recent thread.

https://www.houzz.com/discussions/6420062/vaulted-ceiling-help-needed

Where is the rest of the space?

Where you show the entire thing, inclusive of floors and windows?

Every angle and as many as you like

Have you done your best to select furnishings that absorb sound?

• Thick area rugs?
• Fabric covered seating?
• Lined Draperies on Windows?

You show little of the room but I'm seeing way too many wood frame chairs that do nothing but create noise.

The feltright website looks promising. Thanks for the other ideas too. Perhaps we should do just one area for now - the long, high wall would be a good start. Just don’t want too much color that would draw the attention upwards. Maybe something like this

Can’t seems to access my photos🤷🏻‍♀️

I will almost guarantee you don't need to pad the walls like an asylum. : ) and the last place you want fabric, really is the kitchen. Chairs and stools? Fine, but it is the first room to get grungy with greasy air, fumes of who knows despite a fan.

That is why I asked for the rest of the space. Hope you find photos-

Or sign in on your phone from Safari and skip the app. Hit the photo icon, and "photo library " assuming you are I phone

It's a very pretty space! Personally I would be reluctant to hang anything, especially above the cabinets, purely for noise. Have you considered adding some rugs? Your flooring is not visible, but typically hard floors are used in kitchens (tile, wood, etc) and in an open space like that I wouldn't be surprised if there were hard floors throughout.

Okay. Here’s the rest of the room. It’s the space below the windows that may be a good place to add something that would absorb some sound. Something subtle. Something that would not draw the eye/attention upward. Just another note: I plan to replace the dining chair cushions. They're 1990.

For the love of heaven.....please show all four walls?

You are so stuck on your own answer, to your own question, we can't help you!

I see nothing but wood, leather, more leather and what appears to be more windows and you are hiding them from the camera.........why?

Here's the solution:

Undoubtedly a lot cheaper than custom drapery on the windows we can't see.

Soaring ceiling, high and soaring uncovered windows, hard surfaces........equal noise.

Even four people simply conversing in that space will equal noise.

A new restaurant opened on my corner and when I was sitting in my chair reached underneath to pull it in and felt that it had acoustic foam panel material glued onto the bottom of the seat.

Another restaurant I know of that was mostly concrete and wood had acoustic foam panels on top of some of the architectural wood soffits in the dining room.

If you were able to add a plain matching band of trim around the top of the cabinets, nothing detailed, just a flat band, you could create depth on top of the kitchen cabinets and put acoustic foam panels on top of the kitchen cabinets.

Great space! ^^ love the idea of tucking acoustic panels in different spots - I would be tempted to get a much thicker, plusher wool rug with a thick pad - not sure your current flat weave one is helping much

Wood furniture & seating upholstered in leather. Gee, I wonder why there's an acoustic problem? Any drapes on the windows?

You have a rug that is thin enough to be a pad for a real area rug. Select a rug that has a thick pile, install it, and then get back to us.

Glue up acoustical panels on the ceiling, between the beams, can help a lot. Be sure your vent actually vents to the outside. It's looking a bit of a kitchen ornament rather than something functional. It's totally worth it to vent properly, to not having greasy dirt all over the whole house.