Monday, November 29, 2010

Home Theater layout required careful collection of common measures inappropriate

"Thousands of miles of levees was destroyed to eliminate" this idiom for home theater building process is very appropriate. For many beginners shaoyou, although they have a set of tens or hundreds of thousands of cinema equipment, but in the formation process because the use of inappropriate measures to the whole set equipment lost its significance. In addition, rising prices, upgrade cinema has become many poor shaoyou desire is not seeking, then only you can use some of the most cost-effective measures to upgrade your movie. I think either expensive or cheap cinema equipment to get the best results, the end indispensable or layout and arrangement of taboos to improper committed common measures to avoid loss or not. The following is the home theater during the common layout of inappropriate measures, hoping to start rookie a reference.

A, audio-visual space conditions, improper

Many just contact home theater friends often have this question: "my house is very good, but the effect is very good, sounds not original business presentation that effect, am I cheated?"

In fact, appear above this most not deceived, but your audio-visual space arrangement.

Like space should not be too small or too large, sound absorption, sound insulation materials also have to select the appropriate.

Better audio visual space

1. listening environment dimension and the proportion of properly

Listening environment best shape is rectangular, best area 18 ~ 40 square meters or so.

But also to consider the room high, wide, long three percentage is in line with the golden section rule, such as 1: 1.25 1.6, 1: 1.6 2.5 or 1: 2.5 3.2. Determined to not be able to choose the dimensions of the square or side just on the other side twice the room while the room should not be too high, because the sound in a higher space diffusion reverb time easily formed bad, it will also increase the cost of the installation of sound-absorbing materials. Of course, the General room size, shape, by real estate developers fixed is impossible, dismantles. But we can but you can install, to adjust the ceiling, and wall panels, wall plates to enhance the room dimensions. At present, a common measure is such as wood wooden cabinets or into a compartment, the audiovisual room lwh proportion into ideal conditions to achieve the best results.

2. choose improper acoustical materials

Listening space needs to be done sound absorbing measures, many people are aware of.

But in choosing the absorption material, many will randomly choose a pass, and finally just the opposite. In General, select some of the sound-absorbing material thickness to absorb low frequency sound, while thinner materials facilitate the absorption of high frequency.

These carpets are the most common sound absorbing materials, carpet on the MF and HF absorption of visible, on the low frequency of absorption of very small, if you set the carpet area too large, the details of the sound will be lost.

Sofas, rugs are best attract material

In addition, blinds and hollow slab is also very common sound absorbing material.

Blinds as decoration, in addition to the sound-absorbing capability, but also prevent some sound transmission. The more thick curtain, the greater the suction volume. With crumpled curtain can significantly increase the suction volume, blinds, the greater the expand area, sound-absorbing more obvious. Blinds on the role of high frequency sound in large, listen to sort out the requirements for listening, adjust blinds expansion, thus controlling high-frequency sound absorption capacity. Hollow plate refers to various types of siding with grid flooring, indoor place furniture, they can serve to absorb, the role of low-frequency component.

3. improper diffusion materials selection

Some people say: "my space conditions and the acoustic conditions have done very well, but it sounds a bit harsh, why listen to play, not enough safe, soft.

"Why are you not doing diffusion measures, simply speaking, the spread is the original downs like rugged rocks that voice is as smooth as the seaside beach. Audio-visual room if not good diffusion sound field, then indoor locations or in different frequencies of sound will be uneven, with some frequency or some location sound particularly strong, while others are very weak, this will lead to hard to restore from the speaker out of flat frequency response was murdered, audio-visual room must be arranged with diffusion characteristics of the sound field.

Diffusion plate example

We know that any convex has the capacity of the diffusion of sound, including the slope, surface and convex cambered surface, therefore, to do a home theater-proliferation measures before good diffusion materials must be selected.

Cylindrical, triangle, half-spherical, Polyhedra, pyramid, and other objects are very good diffusion materials, but you need to be aware of the proliferation of materials should be adopted than significant and have a certain stiffness of materials such as concrete, stone, plaster, marble, granite, wood is the use of solid hardwood; as far as possible to avoid the proliferation of plaster casting, while production costs are low, but it produces metal acoustic colouring, on negative tone.

4 way noise reduction,

Spatial memory in noise is inevitable, many people believe that doing a sound is the best way to remove noise.

Fact is not such, sound-absorbing measures just suck some noise, to achieve perfect listening environments, but also set the sound insulation measures.

Noise insulating glass

First, the walls should be heavy and thick structure, improve the insulation capacity of the air.

If there are conditions, by setting up double wall, for example, in the walls of absorbing and installed on the inside wall at arm's length, which also belongs to a double-layer wall.

Second, set the sound of doors and Windows is the key to reducing noise.

Increase the weight and thickness of the door, you can increase sound effects. If you set a double door, intermediate fill-absorbing material, sound effect will be more obvious. In addition to this, the audiovisual room window can be transformed into two or even three layers of glass, glass and frames with of shaped rubber connection, its noise performance comparable 24cm thick brick wall effects. In addition, you can slot in the door, window, paste the sealing is one of the most straightforward method of sound insulation.

Finally, upstairs, downstairs in the noise.

Upstairs, downstairs noise through the ceiling and floor into an audio-visual room. We can install ceilingTo isolate the noise came from upstairs, through the carpet to isolate the noise from downstairs. Carpet can prevent indoor too much smooth surface reflection of sound.

Note that want to noise, vibration isolation is necessary.

Therefore, the audiovisual room cannot appear cavity type ceiling, open the cupboard, because they actually is easy with some frequency in music have resonance Chamber. At the same time, in order to avoid vibration sound the best selection of solid wood, Interior and composite panels for furniture, various items have to be steady, off strict. 1 2 3

This article navigation:

  • No. 01: improper audio-visual space conditions
  • 02: Home Theater top ten errors
  • Article 03: error design lighting
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