Hello all, im Guillermo Bolaño a acoustic engineer from Ecuador Southmerica.
This is a studio that i designed in the city of Quito, it was built using the structure of an existing house, trying to use as many elements as possible to reduce costs but many walls by structural factors had to be overthrown and be rebuilt in brick
For increase the isolation of the studio we covered all the wall with preconstructed concrete panels and flex foam manufactured in my country, which are 7 cm thick with two layers of concrete of 2100 kg/m3 and 1 cm thick foam and foam in the middle of 5 cm
Once done the isolation, the inner wall were covered by variable acoustic hand maded panel of MDF of 18 mm over absorbent panels. Also double glass of 8 mm each one and formed a 20 cm air gap between them, the glass divided the control room from the recording room. The glass that faced the recording room its 8° angled
The wall wall that faced the variable acoutic panels was transformed in a hybrid surface using QRD diffusor of 1 khZ and high frequency absortion panels of 55 x 55 cm. on the other side, the wall that faced the double glass was covered with QRD 1 khz diffuser, and with some glass brick patches to allow the space to be naturally lighted.
The ceiling of the recording studio has a convex shape in the middle, two 6° angle side plane reflector and a height of 3 m from the finished wooden floor.
The control room mixed a LEDE with a FRZ design, using drywall in ther corners to give the room a the right shape and to provide wide low frequency absortion.
In the corner i installed a wide band low frequency absorption with glasswool that worked from 200 Hz and above, with the help of a acoustic measurment we founded the modal frequencies and designed a 60 Hz double helmhlotz resonator of 18 mm MDF.