Very easy and not expensive either. Buy white or room darkrening pleated shades. You can pull them up and down like blinds and they certainly soften the acoustics of a hard glass door. They look nice too.
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In addition to shades please consider adding something to damp the glass. The Marigo 40mm VTS Tuning dots are ideal for this purpose
If for for some reason you decide against drapes I have also had very good results addressing room acoustics with a lot of glass using the Synergistic Research ART system (the resonating bowls). This gets pretty expensive fast but it works well and looks very nice
if you check out my room (similar size to yours) you will see both of these methods applied to a large window (plus I also hung ASC panels on it as well)
Thanks folkfreak for your ideas, in other situation I can consider them but I need to make the room nice also so I think I need to go with the shades.
roxy54, sorry about my english but when you mention pleated shades you mean the ones that have a design that looks like a v regular and then inverted right?, basically no flat. What about thickness? material? any link of something that you recommend? thanks again both for the input.
Pleated shades or a roller blind will have little to no effect as they are in practice acoustically transparent. It may ameliorate some of the excess HF but that’s about it. If you really want an acoustic impact you will need heavy lined drapes. I’m sure your significant other won’t mind the tuning dots so do think about them, they may foul the action of a sliding door however as they are quite thick
One other thought is to do as I did and use the ASC sound planks or GIK panels others suggest
I have them attached via velcro (hook/eye) tape. You can leave the velcro on the glass but only attach the planks when you are listening seriously. Again it’s going to end up costing you but this would work and be flexible
You're not worried about the glass glass which you use for your Scotch? It's a primary reflection point since it's in that sweetest sweet spot.
Best place to start would be something like a Mapleshade brass or maple scotch tumbler.
On a serious note, I'm dealing with a similar issue. The far wall is mainly glass windows, and the designer just doesn't get it. I'll be using a 15-inch woofer as shield for the Tuesday battle, err meeting. Their recommendation is to do nothing...to let the beautiful light in. Since it is three against one, maybe 2 and a half since one of the designers is moderately sympathetic to the whole audio thing...anyways, you know where this one is going.
Curious to see what is recommended. I'm considering GIK free standing panels that can be moved out of the way easily. Though I'm sure I'll need to get designer sign off on the fabric color.
"You might want to look at groffkait’s website, he sells very small adhesive copper strips, that tune the glass, highly effective & inexpensive, work well with pretty window treatments."
The 1" copper Flying Saucers for windows (1 per window) and sliding glass doors are not dampers or tuning devices. Flying Saucers for Unused Wall Outlets which are copper on plastic inserts are their companion product. Both products should be placed in ALL rooms of the house.
Thanks to everyone who post here helping me to find the best option. Definitely I will go with drapes because looks like blind shades will not do the job correctly if they are not thick enough. Just found this:
Maybe this would be the solution, what do you think?
Ummmm...blackout drapes. You can even buy the material and have them custom made. You can work out a suitable method for temporarily hanging them and removing them like velcro, etc. I'm sure we're similar in that my wife controls the decor (she has great taste), with my final cut, except for the A/V wall and my office/listening room where I have all my mounted heads (just kidding). If she can find a heavy enough material she likes she might let you install them permanently. Or you can impress upon her you haven't asked for much in the remodel so she could make this concession. Good luck. Having owned a Custom High End install/dealer business (just for info, not bragging-if you can get someone to pay you for something and is happy about it...) I have used drapes like these and some I have on a drop down roller used for movie screens that is also triggered by the HT remote to auto drop for movie time. Lots of good options, but heavy drapes are great. A little more A/V dampening never hurt anybody.
Blackout drapes are good ideas. Used them myself. Work really well.
I also want to suggest, that while imperfect, treating what you can can make up for what you can't. For instance, extra thick rugs, ceiling treatment, and diffusors between the speakers may not fix the glass, but they can make things so much better.
I know, not practical...;) Lots of better above, and the nearfield approach can work if your space and the other accouterments will allow it. Tends to a low SAF, since your space is small....but since her 'embellishments' have backed you into a corner, you hopefully will get slack in the 'decorative scheme' of things...
They are doors and run almost all the long walls. Basically I have 3 ft of wall then 9 ft of glass doors, and again other 3 ft of wall. Front and back walls are regular, no glass. This is the same for both long walls.
Relative to speakers the glass doors starts about 1ft after the speakers (speakers are about 2ft from the front wall and 1ft from the sides).
Hope I explain it correctly for you to understand.
Not on the doors, but anywhere else. :)
Again, I really like black out courtains. When shopping, a neat trick is to put your ear next to the curtain. Not ON it, but next to it, you'll get a good idea of how absorbent they are.
Also, remember, deficits in some areas can be made up for (imperfectly but well) in others.
In my listening room I have 8' sliding door on left side, 3' x 6' window directly behind equipment and 4' x 6'8" doors on right. My first approach was the Marigo Window treatment on all. That took a noticeable bite out of the muddiness/bounce I was hearing. I then put vertical fabric blinds on the doors and fabric venetian blinds on the windows behind the gear which helped dampen the LFs and lessen the glass bounce. The real improvement however came with finally adding ASC Thermal tube traps in each corner. The traps cleaned up remaining ugly acoustics in the room - not just those caused by the amount of glass. Plus by rotating them (top & bottom) independently, I can fine tune them to the music I'm playing (e.g. digital v analog). I took it step by step assessing each one along the way. That's my experience, FWIW. Good luck