Visiting the in-laws and their set up has 3 in wall speakers above their TV (about 6' up). They are having a hard time hearing dialogue. A thought I had is to install a "wedge" between the wall and the speaker to add a downward tilt to the speaker to aim the tweeter at their ears. I think even a 15 degree tilt would help. I searched around and didn't find anything like this...any ideas is a product like this exists?
Their hearing aid person suggested installing a sound bar below the TV and then trying to "match" it to their existing speakers, but that seems fraught with other challenges (matching timber, compensating for distance differences,etc.)
Ideas/thoughts?
OK, the fact that they use hearing aids tells us all we need to know- if they're going to hear dialog, the sound will need to be equalized for THEM, rather than attempt to angle the speakers. You wouldn't be able to angle them enough to time-align the woofer and tweeter, so don't bother. The tweeters and woofers already cover the area, but by being so high, the sound from both drivers is suffering from phase cancelations. However, by the time you angle them enough to do any good, you may as well replace them with small boxed speakers and use wall mounts to aim them in a way that actually works.
What AV receiver is in the system?
If it has built-in equalization, make the changes manually- Audyssey, YPAO and MCACC are only designed to create a larger 'bubble' where the sound is good, not to tailor it to someone's hearing issues. Once you find out what deficiencies exist in their hearing, you can boost the needed frequencies and find a happy medium for everyone- if you really make it sound good only for the person with hearing aids, nobody else is likely to enjoy the sound. If you want to try boosting the 500, 1KHz and 2KHz bands a bit, it may help them- I have done this and found that happy medium for someone who didn't understand that jogging with ear buds cranked up would royally scerw up her ears and now, she's paying the price.
You could also look into some kind of tunable in-ear monitors, like musicians use. Etymotic and Shure make them.
Do the hearing aids use a smart phone app to make changes to the perceived sound?