I have Hunter Douglas Pirouette blinds in my room, controlled by Control4. They are very quiet when going from open to close or vice versa, but loud going up to down. Look at a video to understand the difference. Recommended, but not cheap.
Someone else mentioned the ikea shades coming out in October, so I might wait and see how those are. Potentially much cheaper, but no slatted blind effect, so the only option would be to fully raise/lower them (and deal with whatever noise that generates).
Opening blinds is generally a morning thing, and ideally would want to be the quiet option if you could only have one option which was quiet (theoretically speaking). What if the electric motor drove the blinds down by pulling a counter weight. That way in the morning to open the blinds it would only need to release the weight, which wouldn't require any substantial movement and therefore limit noise...?
Yeah I'm bored at work.
We may be on to something here...