FAQs archivo - Aislamiento y acondicionamiento acústico

Q: What fabric do I need?

In TEXTIL BATAVIA we have a wide range of acoustic fabrics that allow us to adapt to any need. All our fabrics have been tested according to international standards to know in detail their acoustic properties and thus be able to guarantee their performance. To choose the fabric that best suits your needs, the first step is to identify your circumstances. If the enclosure or room where you want to place the fabric presents any of these problems: -Noise from neighbours walking around - children running, heels, etc. -Noise from neighbours' cisterns. -Noise from the premises located in the commercial ground floor of the building - bars, pubs, cafes, etc.-. -Noise from the terrace of a bar. -Noise from an air-conditioning unit in another dwelling. -Noise from traffic. -Noise from a mechanical garage door. -Noise from the building's lift. -Noise from a neighbour's TV. Then you need a fabric suitable for acoustic insulation. For further information about acoustic insulation please see our frequently asked questions about acoustic insulation. On the other hand, if the room where you want to place the fabric produces noise at the slightest activity, whether it is listening to music, watching television, playing a musical instrument or even having conversations, then you need a fabric suitable for acoustic conditioning. For further information acoustic conditioning see our frequently asked question about acoustic conditioning. However, if you have any doubts, do not hesitate to contact us and any of our acoustic engineers will guide you without any obligation.

Q: How is the sound reduction index obtained?

The only way to obtain the sound reduction index of a material is from standardised tests. The tests to obtain the acoustic reduction index of any material are carried out in accordance with the specifications established in the international standard UNE-EN ISO 10140-2. This standard establishes the test methodology to obtain the acoustic reduction index of a material, indicating the degree to which it can reduce the noise coming from outside the enclosure where it is to be installed. The sound reduction index tests of this standard are carried out in standardised transmission chambers. These chambers are composed of two adjacent enclosures separated only by a partition surface where the sample to be tested is placed. For the test, noise is emitted in an omnidirectional loudspeaker in one of the enclosures (transmitting enclosure) and measurements are made of the noise reaching the other enclosure (receiving enclosure). From the difference between the noise emitted and the noise received at the receiver, the noise level that the material under test is capable of reducing is obtained.

Q: What is the sound reduction index for?

The sound reduction index is used to obtain the sound insulation level of a material. Thus, knowing this value, we can calculate the noise level that a material will be able to reduce when installed and know in advance if it will serve to reduce the noise coming from outside.

Q: How is sound insulation measured?

To measure the sound insulation of a material - such as acoustic curtains or building materials - the sound reduction index (R) is used. This index can be defined as the difference between the sound pressure level inside the room and the sound pressure level outside the room. In other words, the noise level that the material can reduce, expressed in decibels.

Q: What is sound insulation?

Whether you live in a big city or in a village, in a single-family house or in a block of flats, it is very likely that you have experienced noise problems generated outside your home, as described in the following situations: -Noise from neighbours walking around - children running, heels, etc. -Noise from neighbours' cisterns. -Noise from the premises located in the commercial ground floor of the building - bars, pubs, cafes, etc.-. -Noise from the terrace of a bar. -Noise from an air-conditioning unit in another dwelling. -Noise from traffic. -Noise from a mechanical garage door. -Noise from the building's lift. -Noise from a neighbour's TV. And many more. These problems are not exclusive to private homes, but also occur in other environments that we frequent regularly, such as the workplace. Sound insulation can be defined as the set of acoustic solutions that are used in rooms that have problems such as those described above. These solutions range from construction elements - walls and floors made with acoustic insulation - to other technical elements such as acoustic curtains, and their objective is to prevent noise from outside from filtering into a room.

Q: How do I obtain the absorption coefficient of a material?

The only way to obtain the absorption coefficient of a material is through a test. The tests to obtain the absorption coefficient of any material are carried out in accordance with the specifications established in the international standard ISO 354. This standard establishes the test methodology to obtain the absorption coefficient of a material, indicating the degree to which it can reduce the existing reverberation in the room where is going to be installed. The absorption coefficient tests of this norm are carried out in standardised reverberation chambers. These chambers are closed rooms with high reverberation -reverberation times greater than 10 seconds- in which the reverberation time of the empty room is first measured using an omnidirectional loudspeaker to emit the noise and, subsequently, the reverberation time is measured with the curtains installed inside the room. From the results of both situations, the curtain absorption coefficient -the noise absorbed by the curtains- is obtained. In addition, to ensure that the measurements are reliable, the curtains tested must be between 10 and 12 m2 in size.

Q: What is the relationship between the reverberation time of a room and the absorption coefficient?

There is a direct relationship between the materials of a room and its reverberation time. When there are many absorbent materials, the reverberation time is low. On the other hand, if reflective materials are predominant, the reverberation time will be high, producing noise when there is activity. Knowing the absorption of materials is therefore the first step to control the reverberation of a room.

What fabric do I need?

admin2023-05-09T16:03:37+02:00

In TEXTIL BATAVIA we have a wide range of acoustic [...]

What fabric do I need?admin2023-05-09T16:03:37+02:00

How do I interpret the catalogue parameters?

admin2023-05-09T16:08:21+02:00

In the catalogue we have two tables: 2-Global value [...]

How do I interpret the catalogue parameters?admin2023-05-09T16:08:21+02:00

How is the sound reduction index obtained?

admin2023-05-09T16:08:56+02:00

The only way to obtain the sound reduction index of [...]

How is the sound reduction index obtained?admin2023-05-09T16:08:56+02:00

What is the sound reduction index for?

admin2023-05-09T16:09:15+02:00

The sound reduction index is used to obtain the sound [...]

What is the sound reduction index for?admin2023-05-09T16:09:15+02:00

How is sound insulation measured?

admin2023-05-09T16:09:32+02:00

To measure the sound insulation of a material - such [...]

How is sound insulation measured?admin2023-05-09T16:09:32+02:00

What is sound insulation?

admin2023-05-09T16:09:47+02:00

Whether you live in a big city or in a [...]

What is sound insulation?admin2023-05-09T16:09:47+02:00

What do the acoustic insulation parameters in the catalogue mean?

admin2023-05-09T16:11:11+02:00

In the technical specifications of our acoustic curtains, we can [...]

What do the acoustic insulation parameters in the catalogue mean?admin2023-05-09T16:11:11+02:00

How do I interpret the catalogue parameters?

admin2023-05-09T16:11:50+02:00

The table on the left is itself composed of two [...]

How do I interpret the catalogue parameters?admin2023-05-09T16:11:50+02:00

How do I obtain the absorption coefficient of a material?

admin2023-05-09T16:12:06+02:00

The only way to obtain the absorption coefficient of a [...]

How do I obtain the absorption coefficient of a material?admin2023-05-09T16:12:06+02:00

What is the relationship between the reverberation time of a room and the absorption coefficient?

admin2023-05-09T16:12:23+02:00

There is a direct relationship between the materials of a [...]

What is the relationship between the reverberation time of a room and the absorption coefficient?admin2023-05-09T16:12:23+02:00

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