sheetrock/gypsum/drywall

[krish]

i have heard that drywall have some strong qualities in terms of isolation and absorbation both. I just want to know it would be helpful to make a dead room using drywall on wooden studs lined with insulation around 3-4" or it needs some other absorber also..... i just needed a enviornment from where i can get good violins.... strings and winds........ what i can have a reflective concerate floor...... i have though to make some wall of drywall with insulation and some of with cloth covered insulation .....

krish

[John Sayers]

Krish - drywall is good for sound isolation but it is not an absorber of sound. To absorb sound you need various absorbers to built within the room. Go to

http://www.saecollege.de/reference_material/index.html
and read absorbers and then go to
http://johnlsayers.com/Studio/index.htm

and check out the construction pics of the studios there.


Cheers
JOhn

[krish]

Well after going through what i have understand that deaden a room is only possible through the various absorber across different frequencies...... i think for the lows i will use hangers in my two vertical corners that are giving my wall depth around 19"..... this corners will not only works with hangers but also corner traps...... i am planning to split it into two parts one for hangers and reamining top part for corner bass trap..... on my angled wall same slot resonator tuned for low-mids 150-800.......... or may be one down to 150 also as some notes of string instruments are too low ....... i am planning to keep alive some highs as its gives a life to track and that can be done by my concerate floor only. and one more option is to make everything dead and bring down reverbation time....

any feedback?

regards

[John Sayers]

That sounds fine - you seem to know what you are doing.

cheers
John

[krish]

i dont know it works or not.....

[John Sayers]

I'd head in this direction

cheers
john

[krish]

some querries regarding your drawing:

rear wall of room with High Frequency insulation and covered with drywall?

two slot resonator walls: tuned for which range of frequencies?

Corner traps split into two parts the lower one for acoustic hangers?

krish

[John Sayers]

rear wall of room with High Frequency insulation and covered with drywall?

No exposed Insulation with a cloth cover.

two slot resonator walls: tuned for which range of frequencies?

Tuned to the low-mid frequencies.

Corner traps split into two parts the lower one for acoustic hangers?

Yes you could do that.

cheers
john

[krish]

should i tune my wide band slot resonator for 150-800hzs...... ?
or have to treat lows down to 150hzs also?

krish