Brenda’s Studio 23

Professional voice actor from San Diego, CA

Designed for personal requirements

It is special to have your own personal audio room. A room that is designed for your own personal usage. A room where the frequency response of your voice is designed for into the size and volume of your room. It is a room where all the absorption and diffusion requirements are designed to complement the frequency response of your voice. Brenda’s room design is 23 floors in the air. It is in her bedroom. It is 5′ w x 8′ h x 11′ l. It is a room where she can sit or stand and adjust the diffusion and absorption requirements within her room to achieve the proper tonal balance in her voice recordings

Ready at all times

We were 23 stories in the air (230′). We had ground noise from the city moving up between tall buildings. We had garbage trucks back up beepers, trash cans slamming to the ground, cars honking. All of this low, middle, high-frequency energy reinforced by the boundary surfaces of the tall buildings. Air born energy from the San Diego air traffic and news helicopters round out the + 90 dB external noise nightmare.

External noise measurements were taken using our seven day noise time study. Three measurements a day at low pressure, middle pressure, and high-pressure times during a whole week. A room is only as good as the time you can be in it working. With the creative process, you must have full room access at all times. No waiting for that airplane to leave the area before I can make a recording.

SPL Meter Readings

Outside noise levels have to be quantified and qualified. When levels exceed 85 dB SPL, special consideration must be used for the full range noise frequencies. This is the impetus behind the layered exterior wall, air space, coupled with the internal panel, between the studs, “sandwich” of 4 different materials . This external plate / air space / internal stud “sandwhich” method allows for multiple layers to address multiple frequency ranges with higher amplitudes. Notice the patio door open reading with the internal Studio 23 reading.

Brenda Desjardins Audio Demo

Sound management done right

To stop low-frequency energy you must use mass or density. Lightweight materials to stop noise are like holding up a feather to stop a tornado. Unfortunately, to stop lows, we need weight in structure and with a build 23 floors in the air, we were restricted to a maximum total room weight. We had to squeeze every ounce of noise reduction transmission out of every pound of material. Watch the build out in the video.

The first level is the proper management of the direct sound from your music or source, whether speakers, voice, or instruments. In Brend’s room, it will be the voice. The second level is room sound. The reflections from the room walls must be managed correctly, using the proper rates and levels of absorption, coupled with the correct diffusion frequency sequence to balance everything in the time domain at the microphone position.

A room tuned to her voice

A room where carbon panels 1′, 1 1/2″, and 2″ thick panels are staggered on the side walls to treat room modal patterns for her bottom octave starting around 95 Hz. all the way up through 3,500 Hz. Diffusion technology on the front wall using our QD-13. Our foam technology which was specifically designed for voice on the ceiling and rear wall or door. A room tuned specifically to her voice.

Our foam, carbon, and diffusion technologies were integrated into Studio 23. Our carbon for lower octave linear absorption. Our foam for middle and high-frequency rate and level clarity, separation, and definition. Diffusion to add “air” and spatiality to the presentation if desired. A room that is tailored to your vocal needs and requirements. It is a very special thing to have your very own music room.

image of a qda sound diffuser absorber

QD-13 Quadratic Diffuser

The QD-13 is used for those that have medium space requirements. With its 12.5″ depth, it is designed for medium to large spaces. It can be arranged in both a vertical and horizontal array to accomplish two dimensions of diffusion.

A quadratic diffuser will allow all middle and high frequencies to be equally represented in your room a separation and definition in vocals and instruments that no flat room surface could ever hope to do. A quadratic diffuser will also add width to your sound stage, so your music will sound like it is coming from farther left and farther right of your actual speaker positions

Read more about the QD-13 Acoustic Diffuser

Acoustic Foam Panel

We invented our acoustic panels because we were unhappy with the performance of current open celled acoustic foams. Why? Because current foam technologies do well at absorbing frequencies above 500 Hz. but do little to absorb much energy below that level.

The human voice spans the range of 100 Hz. to 800 Hz., so special absorption attention must be paid below 500 Hz. because that is where 75% of all the vocals lie, especially male vocals. Current technology gets 50% of the absorption curve correct but forgets about the bottom half where more than 75% of the real energy is.

We wanted to achieve just the right balance of absorption below 500 Hz. and we needed to start with 125 Hz. (the bottom frequency range of the male vocal).

Read more about the Acoustic Foam Panel

Vocal Room Panel | VRP

Our carbon technology is now available for use in vocal rooms where the recording of voice is critical. Our carbon technology that has become so popular with our low frequency product line is now available in a 1″ and 2″ deep panel that is wood and fabric covered. With a very smooth frequency response starting at 90 Hz. and going through 3,000 Hz. it is a smooth tool for minimizing the reflections in small rooms especially for voice.

With carbon technology, you achieve a smooth absorption curve that is smooth in rate and level with a special quality of clarity that is not offered with foam or other absorption technologies especially the building insulation types that dominate the industry. If you are looking for a more natural rate and level of absorption that does not over absorb at certain frequencies and under absorb at others, carbon will give you that linearity you need for voice.

Read more about the Vocal Room Panel VRP

Do You Want To Solve Your Room Acoustic Problems?

There’s no one size fits all when it comes to room acoustics.
That’s why you need an individual room acoustic analysis in order to fix the issues you’re facing in your room.
Our chief acoustics engineer Dennis Foley will analyse your room personally and the best part is: It’s 100% free!


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