Recording Studio Profits

Designing and building a home studio with 2010 Design Studio

instruments for recording and mixing tracks are different tasks and require room acoustics balanced. Instruments and drums to produce a range of frequencies that are represented as musical notes. Think of the bass and drum. They are low freq. instruments. The highest score low at a low 5-string B is down to 31 Hz and 25-40 Hz hype

The wavelength of 31 Hz is C / f = 36.4 feet = 1128.6/31
The wavelength of 25 Hz is C / f = 45.1 feet = 1128.6/25

A wall will resonate at a given frequency, when a sound wave acts sharing the same frequency or a harmonic thereof. It calculated in relation to the size that f = c/2L.

Therefore, a wavelength of 25 Hz requires a minimum length of the wall L = 22.6 feet = C/2f for avoid this effect and support the low frequencies are recorded correctly. That said, extensive support rooms, both higher than the reverberation tend to respond slightly more often mild. Try to build your studio with at least one dimension that support the lowest frequency must be registered. So avoid the same size or multiples sized to cause the accumulation of modal 200% to 300% of the normal range.

A rectangular room is under the waves making up a frequency fundamental and harmonics or nodes that are calculated for each dimension of the room to the courtroom low frequency. If the dimensions of the rooms are not well spaced or too small, then there is the accumulation of manners. As an example, if a low hit the low B string of 31 Hz in a room that is 16 'x 13 'x 10', then all surfaces in this room that resonate 31 Hz or its harmonics starts to vibrate due to the minimum length of 18.2 "is only 16 '. Therefore, the natural wavelength of the note can not be resolved and the sound energy is recovered. The battery starts to vibrate more likely is that the walls and if the microphones are live, you can comment.

The frequency hopper (OCV) is very important to know how to deal with the accumulation of difficulties. Is related to the volume of the chamber and the response of the reverb. Modes (frequencies) above the CDO are processed by the camera with a soft response while modes under the CDO of interest if they cause an accumulation.

Bco = 20,000 * Sqr (Reverberation time / volume of the chamber) in hertz

Design Studio 2010 allows the user to input the dimensions of the room length, width, height and the response of the reverberant chamber. Calculates all manner of ways frequencies longitudinal and oblique tangial and charts the results of the ways to easily see the separation and accumulation mode.

Vist www.recording-studio-design-software.com for more details examples and program instructions.

Each chamber dimension is calculated wavelength (fundamental frequency) and harmonics at frequencies up lower cut of the room. The number of ways and the color is indicated in the text field next to each dimension. It is easy to see what size (s) are causing accumulation mode. Just change the size to see how the effects of spacing between modes to optimize your study bedroom. Enter the dimensions your room a rectangular chamber, and the desired response (RT60) that you want the room has. Click the Calculate button to see the results.

Width Bandwidth is the range of frequencies around the fundamental frequency (and harmonics)
that is represented as a bell curve. If the way bandwidth is the bandwidth so
Moreover, this mode is excited, since it represents an intrusion into fashion. This extra energy
leaky mode is added. The graph shows all excited modes in blue.

BW = 2.2 / reverberation time
Chamber volume is length x width x height in cubic meters.

The calculator converts the aspect ratio in a report where 1 is the height. This is useful when you have the dimensions to ensure proper separation of modes and To change the size of the room using the same ratio. Enter a value in the text box and the wall pi select to apply the amendment. Press the up or down to re-calculate the size by the amount entered. Click Apply to update the draft ratio with the new dimensions.

Frequencies current modal plots are displayed in the drop-down list next to each graph. The modes of length, width and height are plotted in different colors to identify easily when deciding what size to adjust to optimize the separation or modal reduce the creation of UPS modes. The graph is drawn to the frequency Low-cut of the room. Are the modes of interest. Each dimension (fundamental frequency and harmonics) is calculated until the CDO.

The maximum "amplitude" is 300%, which represents the sum of three modes of equal frequency, which occurs only when the three dimensions are the same.

Axial modal frequencies are given a range of 100%. Tangial modal frequencies are given a range of 50% and oblique modal frequencies are given a range of 25%. Plots of all modes of the frequency distribution graph and the three modes. The chart shows all modes excited in blue if its "breadth" is over 100%. axial modes are considered primary, while tangial modes have a second-order effect and oblique modes have a third order effect. Tangial and oblique modes tend to "fill" between the axial
modes.

The goal is to enter the dimensions of your room and observe the desired response reverb graphics for the mode of separation. Take a look at the first frame axial. Length modes are shown in green, Burgundy width, and height of tan.

If you are modes too close to each other as they appear in blue. Blue is a problem and a way of accumulation occur at these resonance frequencies. Walls, ceilings and floors are essentially resonant absorption panel front and back panels of the cavity air space, insulation, etc. They have a harmonic resonance frequency for the most dimension and resonance modes when in the context of CDO excited.

The aim is to achieve optimal separation, while the problems of overlapping modal and identify modes minizing frequencies. absorption coefficients are measured for the materials to 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz. Example: If the OCV is 300Hz, then check the accumulation of 125Hz and 250Hz. Other hot spots can be addressed by the design of Helmholtz resonators absorbers customized for these frequencies. Design Studio 2010 allows the user to design resonators Helmotz and save them in database and selected acoustic materials in sound design.

When you optimize the dimensions of the site, save the project and the name of the room. Click the button to start materials add acoustical materials representing your construction project and materials to use. Design Studio 2010 has a data base of over 1,100 acoustic materials and their respective absorption coefficients. Better yet, the user can maintain, modify, add or delete materials from Acoustic this database using the menu of acoustical materials.

The materials aim is to add one at a time on the grid and enter the feet area square of this material. Pressing the Calc button will update the calculations of absorption and reverberation time Sabines. Noting the results of reverberation for each frequency of 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, you can see the effect the addition of matter.

Start by adding walls, ceiling and floor materials will use and enter the area for each entry. This gives a starting point. You can then add other elements such as bass traps, resonators Helmotz, etc. until your total is reverb reverb design. Select a category filter "Select a sound material" list. For example, select
Walls see all the walls or filter the list by type.

With a sound device in its reference area road and outside noise environment to determine the frequencies they are wrong and the amount of noise reduction necessary. This can be used to choose the project of building the wall. The walls are evaluated by STC (class sound transmission). If you need a reduction of 40 dB, then choose wall design with CTS CTS 40 vs 60. The cost of the STC 60 walls (double wall 2×4 with 2 layers of 5 / 8 "drywall on both sides filled with a bat insulation) can be expensive.

Select the type of absorption frequency band filter low-, medium-low, middle, upper middle, high or wide. When selecting a material from the dropdown list, look at the coefficients and the Sabine and the total current reverb, choose material led to the current results.

After selecting a type, the category list is updated to reflect the records associated with this type. Example: The user selects search Carpets and rugs all to find your representative, or filter by type of carpet to find that they have a pattern of specific bands. See the results of the reverb. If the reverberation time is greater than 2000Hz and 4000Hz, then select a group type with an emphasis in band. The list of materials will be today and that the materials have an absorption coefficient with higher values in this range.

Use of Materials Sabine acoustic model analysis of the current study, testing, listening room or home theater. If not in the database of materials, you'll find anywhere and just add that the use of acoustic materials screen.

After a selection of materials is done, enter the area of text field SQ white. feet and press the Calc A handheld calculator is just a click away. Click the calculator icon appears. It multiplies only, but provides the floor and wall surfaces calculated with the dimensions that are currently enrolled. Look on the wall of buildings and different ACO. Paredes really absorb the low frequencies! A common construction is 2 x 6 walls 5 / 8 "drywall spaced 24" center filled with 5.5 inches of insulation.

Study Design 2010 offers the opportunity to design and type Helmotz perforated mesh and panel absorbers and resonators type by clicking the absorption menu design. To cope with the ways of annoying design resonators Helmotz Listening to these frequencies.

After designing low absorbers Helmotz often, add acoustic materials database, then select the drop down list of materials and add them to the design grid.

In addition to absorbing perforated sheets such use and panel absorbers to give your custom design studio. Building mount wall panels that open and close with a hard surface on one side reflection and absorption of the other to allow the alteration of the response of the reverberation chambers. Syndicate absorption and broadcasters also on all the walls.

Use a carpeted floor cooling in some areas to reduce reflection.

Place low-frequency Helmholtz absorbers drilled in the roof of the building. Alternate models through the roof. For example, a typical building garage General 2×8 new beams. If a second floor also has a sub-floor also see the back of a panel. If there is a second floor, made 5 / 8 "wood plywood. Fill the ceiling joists with insulation bats. A 2×8 is 7.5 cm. Apply 3 / 4 "strapping to the ceiling joists to provide a decoupling or use resilient channels. This gives an air space filled with insulation 8.25 ". Cover the roof with two layers of 1 / 2" plywood. Drill with drill sheets 4×8 models Helmholtz resonators in the design and then screwed into the frame. Stain or paint and cover with a loose fabric woven with a spray adhesive on the plywood. Thick Panel 1 "air space of 8.25" diameter 25 "- .375" for the Helmholtz drawings and models to achieve the desired frequency range. Please note that all roof panels must be perforated.

Disclosure is also required for the breakdown of the various sources of direct, indirect, and random. Consider the wall or panel mounted triangular QRD diffusers. 2010 Design Studio allows you to design up QRD 43 times. Place in the area near the recording microphones drum kits, vocal booths, etc. to help distribute sound all audio sources seamlessly register or the mixing zone Paino.

Please visit www.recording-studio-design-software.com for more information.

About the Author

D. Curtis Bates is an electrical engineer and software developer and has been a lead guitarist and songwriter for 40 years. In addition, Mr. Bates founded an independant record company and engineered and produced The Rustic Overtones in 1991 and Howie Day in 1998.

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