'Keep Your Movie Premiere to Yourself' Home Theatre Headaches to Avoid
‘The “doof doof” of heavy bass music, explosive gunfire and primal animal roars’ are all becoming common household noises, as more homeowners build home theatre rooms to house their expensive state-of-the-art surround-sound systems and big screen TVs.
According to the Owners Corporation Network ‘Noise is the fastest growing area of complaints and disputes in urban Australia.’
Milne highlights that:
‘Noise can interfere with sleep, rest and conversation and cause fatigue, irritability, headaches and stress… We all need to contain and reduce noise and protect ourselves from sources of noise in order to enjoy a healthy life. Thoughtful design and practice can reduce the impact of noise on our lives and improve the quality of our living environment.’
The increased noise levels from modern entertainment systems has re-focused the spotlight on an age-old problem in house design –‘soundproofing’. With the current building trend towards providing low-cost affordable housing, soundproofing materials are installed to the minimum building code standard or forgotten altogether.
When planning, building or retrofitting a home theatre there are two types of noise that you will need to take into consideration: 1. Airborne noise coming from common sound sources such as voices, TVs and radios. 2. Structure-borne noise (impact noise) produced when part of the building’s fabric is directly or indirectly affected. Energy passes through the structure and creates noise in nearby rooms. Examples include: - Heavy footsteps (particularly on bare timber or tiles) - Banging doors - Scraping furniture - Vibration from loud music
Pyrotek offers a full range of soundproofing products to allow you to listen to the latest Hollywood premiere or dance to the latest party album in your home theatre room, whilst others take an uninterrupted afternoon nap or converse over the phone uninterrupted.
Soundproofing measures are best specified and installed during the construction phase of a home theatre, as it may become expensive and inconvenient to retrofit depending on the original home theatre design and construction.
The major source of noise coming from home theatres is airborne noise from TVs, surround-sound systems and voices. Noise will travel outward from the home theatre spreading to other areas of a residence freely unless it is absorbed or reflected. The ability of airborne noise to spread through walls and ceilings to different rooms from a source is known as ‘cross-talk’.
Typical standard wall and ceiling constructions often do not provide an effective buffer to prevent the penetration of noise energy. Walls and ceilings acoustically enhanced with Pyrotek products can greatly reduce or prevent noise energy affecting other parts of a house.
To enhance a wall’s performance in reducing noise, a sound absorber such as Sorberpoly should be installed into the wall cavity to absorb noise energy. Over the top of the Sorberpoly, a sheet of Pyrotek’s industry-leading flexible mass-barrier Wavebar appropriately fixed is recommended. The final layer of wall construction should be a high density plasterboard layer. Higher noise control requirements may require further construction treatments.
The combination of Sorberpoly and Wavebar is the ideal soundproofing solution for home theatre rooms; together they will greatly improve sound insulation and prevent the coincidence dip of typical walls. The dense core mass-layer of Wavebar prevents the transmission of sound through walls, ceilings and floors, reducing the noise generated from mechanical equipment, engines and electronic audio technologies such as radio and television.
Wavebar should be installed into the ceiling of a home theatre room to stop cross-talk penetrations. It is common for these cavities to be overlooked and become a path for noise to travel through
Pyrotek’s Echohush Cosmo room acoustic products are an essential element of any entertainment room. Echohush Cosmo panels are designed for superior noise absorption, along with aesthetically pleasing designs that will blend in seamlessly with any décor.
Noise generated from surround sound-systems will reflect off any hard surface within a theatre room. This will leave sound echo (reverberation) in the room, which can detract from the hearing experience as echoes compete with each other in a small space. Echohush Cosmo panels absorb sound, reducing echo and thus enhancing the audio outcome.
Available in multiple designs and colours and as simple as hanging a picture frame to install, Cosmo panels can greatly enhance your enjoyment of the latest Hollywood blockbuster.
For further advice on acoustically optimising the construction of your new or existing home theatre system, please contact Pyrotek on 1300 928 322 or visit www.pyroteknc.com to find out more about our industry-leading soundproofing products.Reference List
1. Milne, G, 2013, ‘Appendices – Noise Control’, Your Home. Retrieved 10th of July 2014
2. Owners Corporation Network 2012, ‘Noise in Strata Buildings’ Owners Corporation Network, Retrieved 07/04/2014 http://ocn.org.au/book/export/html/1200