Acousticians & Audio Engineers on Sound Performance in a Room

What ACOUSTICIANS and AUDIO ENGINEERS said about RELATIONSHIP between ROOM DESIGN and AUDIO PERFORMANCE?

Produce or listening music with a realistic sound performance is a dream of every musicians, sound engineers and music or audio lover.

“Although it has been traditional to consider the loudspeaker and room as separate entities, this approach is no longer justified. The loudspeakers, room and listener comprise a system within which the sounds and spatial illusions of stereo are decoded, and they must be considered together.”

— Floyd E. Toole Ph.D. - Harman International, 2006

Jan Abildgaard Pedersen, 1994

Bang & Olufsen, DynAudio

Increasing the reverberation time tends to decrease the position sensitivity, especially at higher frequencies. This is, as expected, due to the fact that the sound field becomes more diffuse when the reverberation time increases. The sound pressure amplitude does not depend on the position in a perfectly diffuse sound field.

David Griesinger, 1998

Lexicon

In rooms where low-frequency envelopment is perceptible, low-frequency instruments in classical music are often perceived as external, while Iow-frequencies in popular music are often "in the head". Low-frequency instruments in popular music, such as the kick drum and the bass guitar, are almost always perceived as coming from inside the head.

Avis, Fazenda, Davies, 2007 Salford University

Given the suggestion that the high-frequency reverberation time may help “mask” low-frequency problems.

“Remember, dollar for dollar the acoustical treatment of your room will make more of an audible difference than any piece of electronic hardware, speaker, or cable.”

— Peter D’Antonio - RPG Acoustic, 2004

ALTA Integra is a multi-discipline building physics engineer designer such as acoustics sound, lights, thermal, air quality, and etc. Research agreed that the built environment is affecting the sensor, emotion, behavior, and biology of humans and other living objects. Our mission is to create a greener, healthier, beauty and comfort to lives in.    

#acousticsdesign #roomacoustics #sounds #sound #musicstudio #audioroom

Sounds of the City - Between Noise Pollution and Beautiful Soundscape?

“Have you ever wonder, where have all the birds gone? ”

In Jakarta city nowadays we hardly see birds nesting, flying, or looking for food. Some research says that nature soundscape such as the sound of running water, or birds singing will improve mental health. However, due to the increasing noise pollution, the sound of birds became the sound of machinery.

Loud sound can have a serious impact on human health as well as on ecosystems. The effects of noise pollution on birds have been a key subject of study for scientists and conservationists over the last decade. Researchers suggest that noise pollution affects their behavior, fitness, breeding, and growth, and often leads to chronic stress.

Scientists say that constant noise may form an acoustic blanket muffling the audio cues birds rely on to detect predators, competitors, and their species. Noise pollution delayed nesting for birds whose songs are at a lower frequency and thus more difficult to hear through low-frequency human noise. When considering noise pollution, results showed that birds living in forested environments tend to be more sensitive to noise than birds in open environments. 

You may have noticed that many birds around us sing at different pitches or volumes in response to noise. One well-known example is Robins, which sing at quieter times of the day or night. This could be seen as an adaptation, but the problem is that this change can disrupt mating and affect breeding success in such birds.

For birds, hearing is second in importance only to vision for monitoring the world around them. Avian hearing is most sensitive to sounds from about 1 to 4 kHz, although they can hear higher and lower frequencies. No species of bird has shown sensitivity to ultrasonic frequencies (>20 kHz). Sensitivity to frequencies below 20 Hz (infrasound) has not received much attention; however, pigeons and a few other species have shown behavioral and physiological responses to these low frequencies. In general, frequency discrimination in birds is only about one-half or one-third as good it is for humans within the 1 - 4 kHz range.

A problem that birds suffer that is similar to humans is damage to the auditory receptors (hair cells) from loud noises. The sound intensity that produces damage and the amount of damage produced differ depending on the species. Birds residing in the active areas of airports might be constantly subjected to sound pressure levels that damage their hearing. Thus, to effectively disperse birds using sound, auditory alerts must be at frequencies that can be detected by the damaged auditory receptors. Although some if not all species of birds have the ability to repair damaged hair cells, continued exposure to loud noises would prevent recovery of their hearing.

ALTA Integra is a multi-discipline building physics engineer designer such as acoustics sound, lights, thermal, air quality, and etc. Research agreed that the built environment is affecting the sensor, emotion, behavior, and biology of humans and other living objects. Our mission is to create a greener, healthier, beauty and comfort to lives in.  

#sounddesign #sounddesigner #soundscape #acoustics #birds #nature #health #mentalhealth #noisepollution #cityscape

Psychoacoustic survey guitar violin live recording

Psychoacoustics survey of three live recording microphone location:

1. Near microphone

2. Near-Far microphone

3. Far microphone

Question:

1. Which recording has the most blending sound between guitar and violin?

2. Which recording has the most tonality balance between low and high frequency?

3. Which recording is the nicest sound attack and decay?

Please leave your answer on HerwinGunawanWork YouTube Channel

Thank you for participating.

#music #sound #sounddesign #design #psychoanalysis #humancentric #acoustics