Thursday, September 20, 2012
Week 8 - Mid Semester Critique
Week 8 - RMIT Building 8 - Entry Sound Hemisphere PDF (Click - Login)
Week 8 - RMIT Building 8 - Hall Sound Hemisphere PDF (Click -Login)
Week 8 - RMIT Building 8 - Cafeteria Sound Hemisphere PDF (Click - Login)
Week 8 - RMIT Building 8 - Analysis PDF (Click - Login)
RMIT Building 8 - Sound Hemisphere 1 (Foyer Level 2)
RMIT Building 8 - Sound Hemisphere 2 (Hall Level 3)
RMIT Building 8 - Sound Hemisphere 3 (Cafeteria Level 4)
RMIT Building 8 Notes
Week 8 - RMIT Building 8 - Hall Sound Hemisphere PDF (Click -Login)
Week 8 - RMIT Building 8 - Cafeteria Sound Hemisphere PDF (Click - Login)
Week 8 - RMIT Building 8 - Analysis PDF (Click - Login)
RMIT Building 8 - Sound Hemisphere 1 (Foyer Level 2)
RMIT Building 8 - Sound Hemisphere 2 (Hall Level 3)
RMIT Building 8 Notes
Wednesday, September 19, 2012
Week 6 - Victorian Market Site Visit
Week 6 - Victorian Market Hemisphere PDF (Click and Login)
Week 6 - Victorian Market Sound Notes PDF (Click and Login)
Sound Notes for Site Map
Location: Victorian Market
Day: Wednesday 29 August 2012
Start Time: 2:00 – 2:10pm
Notes: The weather conditions of the day were sunny and windy with a top of 18 degrees Celsius during the day. The wind was heading in a direction from the North West. The dimensions of the map are 112 meters x 112 meters and had an ambiance radius of 56 meters. The total coverage for the circle was 9847 meters. The centre of the path was located on the foot path where people were walking and talking coming from both directions from the North and South of the footpath. Coming from the South direction walking along the path was a Man speaking loudly on the phone with a foreign accent. To the south was a family with a mother, father and two children who you could hear playing and running on the footpath. The Victorian Market was closed for the day, and had construction happening within the Market Place Food Court to the East of the path. Inside the Market Place Food court there was loud machinery such as drills and circular saw blade cutters. In the centre of the food court there was a impulse sensation of nails being hammered. To the South, on the footpath and the road there were seagulls and pigeons crowding together Squawking. Trolleys wheels along the gravel and road could be heard when they were being used to transport food around the market from the South West direction heading North East and along Victoria Street on the footpath. Trees on the path contained sparrows that were chirping 3 meters above ground level. Busy car and trucks wheels were heard along Victoria Street quiet loudly as sound reflections and echo could be heard due to buildings being located on the North Side of Victoria Street. Car skidding tires of low frequencies echoed coming from North West of the map and being swept by the North Westerly winds. The flag pole string could be heard dangling on metal pole located in the centre island on Queen Street. Victorian Market was quiet located across the road from Queen Street.
Week 6 - Victorian Market Sound Notes PDF (Click and Login)
Sound Notes for Site Map
Location: Victorian Market
Day: Wednesday 29 August 2012
Start Time: 2:00 – 2:10pm
Notes: The weather conditions of the day were sunny and windy with a top of 18 degrees Celsius during the day. The wind was heading in a direction from the North West. The dimensions of the map are 112 meters x 112 meters and had an ambiance radius of 56 meters. The total coverage for the circle was 9847 meters. The centre of the path was located on the foot path where people were walking and talking coming from both directions from the North and South of the footpath. Coming from the South direction walking along the path was a Man speaking loudly on the phone with a foreign accent. To the south was a family with a mother, father and two children who you could hear playing and running on the footpath. The Victorian Market was closed for the day, and had construction happening within the Market Place Food Court to the East of the path. Inside the Market Place Food court there was loud machinery such as drills and circular saw blade cutters. In the centre of the food court there was a impulse sensation of nails being hammered. To the South, on the footpath and the road there were seagulls and pigeons crowding together Squawking. Trolleys wheels along the gravel and road could be heard when they were being used to transport food around the market from the South West direction heading North East and along Victoria Street on the footpath. Trees on the path contained sparrows that were chirping 3 meters above ground level. Busy car and trucks wheels were heard along Victoria Street quiet loudly as sound reflections and echo could be heard due to buildings being located on the North Side of Victoria Street. Car skidding tires of low frequencies echoed coming from North West of the map and being swept by the North Westerly winds. The flag pole string could be heard dangling on metal pole located in the centre island on Queen Street. Victorian Market was quiet located across the road from Queen Street.
Week 6 - Annotated Essay - Spatio-musical composition strategies
Week 6 - Annotated Essay - Spatio-Musical' PDF (Click - Login)
The reading ‘effect of the acoustics of the performance space’ by Natasha Barrett describes the difference between the Illusion and allusion, where illusion is the perceived space which appears real but however they are listening to an “illusion in stereo or multi-channel space”, and allusion where “space is implied without direct illusion”. Natasha describes how including an allusion to the sound and by introducing a 3d synthesised sound field, the interaction with the space begins to increase in comparison. The main message within the reading expresses that spatial information can not only have this direct illusion, but rather including the allusion to a space can open up opportunity to view interpretations similar to that of the illusion. This idea can be used within producing music where a spatial allusion can work hand in hand with a spatial illusion to allow for spatial options for the music piece. [Barrett, Natasha]
This information is very helpful for producing a spatial analysis of RMIT Building 8 for my spatial sound modelling project in the way that I can use both spatial illusion and spatial allusion to express the properties of the architecture. As a descriptive nature of walking throughout the different spatial conditions I could use spatial illusion to express the real spatial perception and use spatial allusion to express the “interrelated acoustic laws of objects sounding in space” [Barrett, Natasha] where I might have to make assumptions in aural interpretation.
Bibliography:
- Barrett, Natasha, Spatio-musical composition strategies
The reading ‘effect of the acoustics of the performance space’ by Natasha Barrett describes the difference between the Illusion and allusion, where illusion is the perceived space which appears real but however they are listening to an “illusion in stereo or multi-channel space”, and allusion where “space is implied without direct illusion”. Natasha describes how including an allusion to the sound and by introducing a 3d synthesised sound field, the interaction with the space begins to increase in comparison. The main message within the reading expresses that spatial information can not only have this direct illusion, but rather including the allusion to a space can open up opportunity to view interpretations similar to that of the illusion. This idea can be used within producing music where a spatial allusion can work hand in hand with a spatial illusion to allow for spatial options for the music piece. [Barrett, Natasha]
This information is very helpful for producing a spatial analysis of RMIT Building 8 for my spatial sound modelling project in the way that I can use both spatial illusion and spatial allusion to express the properties of the architecture. As a descriptive nature of walking throughout the different spatial conditions I could use spatial illusion to express the real spatial perception and use spatial allusion to express the “interrelated acoustic laws of objects sounding in space” [Barrett, Natasha] where I might have to make assumptions in aural interpretation.
Bibliography:
- Barrett, Natasha, Spatio-musical composition strategies
Week 4 - Carlton Gardens Site Visit
Week 4 - Carlton Gardens Hemisphere Map PDF (Click - Login)
Week 4 - Carlton Gardens Sound Notes PDF (Click - Login)
Sound Notes for Site Map
Location: Carlton Gardens
Day: Wednesday 16 August 2012
Start Time: 10:15 – 10:30 am
Notes:
The weather conditions for the day were windy and cloudy with little sun averaging 14degrees Celsius at 10:15am. Wind direction came from the North East. The dimensions of the map 162 meters x 162 meters and had an ambiance radius of 82 meters. Total site coverage for the circle was 21113 meters. School children laughter and talking came from North East of the site, sound travelling with direction of wind came in contact with centre of circle location. Children from school group were heard running along North West to South West gravel path. Footstep on gravel could be heard. Groups of young adults were walking slowly along gravel path approached the centre of circle while talking heading from the South West direction towards the North East. Much sound from sources from water fountain (water splashes) were heard more clear and prominent from the North East in compared to the South West due to reflection/reverberation of sound from the Royal Exhibition building in close proximity. Lady and her dog of lead swept passed the centre location coming from the East and heading west. The dog and the lady’s footsteps were soft against the grass, but not in time with one another. The lady could be heard calling for her dog and the sound of the dog’s metal collar tag jingled as the dog ran. Bird from all directions could be heard within the trees surroundings. Different types of birds were heard chirping, one of the prominent birds were the indian mynahs. Up with the birds you could hear the trees rustling their leaves because the wind was quite strong. Low frequency sounds of cars passing on Rathdowne Street could be heard 152 meters away and also on Victoria Street which were roughly 190 meters away. The screeching of the tires on the road could be heard. A trams rails heading along Victoria Street and different vehicles such as motorbikes and trucks were coming from the distance. A few car honks echoed through the open space. These sounds from the two main roads could be heard due to the sound reflection coming from the building along Rathdowne Street and Latrobe Street (south of Victoria Street). These sounds also swept along the pond that was located in South West Corner along Rathdowne Street.
Week 4 - Carlton Gardens Sound Notes PDF (Click - Login)
Sound Notes for Site Map
Location: Carlton Gardens
Day: Wednesday 16 August 2012
Start Time: 10:15 – 10:30 am
Notes:
The weather conditions for the day were windy and cloudy with little sun averaging 14degrees Celsius at 10:15am. Wind direction came from the North East. The dimensions of the map 162 meters x 162 meters and had an ambiance radius of 82 meters. Total site coverage for the circle was 21113 meters. School children laughter and talking came from North East of the site, sound travelling with direction of wind came in contact with centre of circle location. Children from school group were heard running along North West to South West gravel path. Footstep on gravel could be heard. Groups of young adults were walking slowly along gravel path approached the centre of circle while talking heading from the South West direction towards the North East. Much sound from sources from water fountain (water splashes) were heard more clear and prominent from the North East in compared to the South West due to reflection/reverberation of sound from the Royal Exhibition building in close proximity. Lady and her dog of lead swept passed the centre location coming from the East and heading west. The dog and the lady’s footsteps were soft against the grass, but not in time with one another. The lady could be heard calling for her dog and the sound of the dog’s metal collar tag jingled as the dog ran. Bird from all directions could be heard within the trees surroundings. Different types of birds were heard chirping, one of the prominent birds were the indian mynahs. Up with the birds you could hear the trees rustling their leaves because the wind was quite strong. Low frequency sounds of cars passing on Rathdowne Street could be heard 152 meters away and also on Victoria Street which were roughly 190 meters away. The screeching of the tires on the road could be heard. A trams rails heading along Victoria Street and different vehicles such as motorbikes and trucks were coming from the distance. A few car honks echoed through the open space. These sounds from the two main roads could be heard due to the sound reflection coming from the building along Rathdowne Street and Latrobe Street (south of Victoria Street). These sounds also swept along the pond that was located in South West Corner along Rathdowne Street.
Week 3 - Annotated Essay - 3-D acoustic space and its simulation using Ambisonics.
Week 3 - Annotated Essay - 3D Acousitc Space PDF (Click - Login)
Read the following sections
-Physiological considerations
-Perceptual issues
-The Effect of the Acoustics of the Performance Space
The reading ‘3-D acoustic space and its simulation using Ambisonics’ by David Malham, describes how acoustic space can be interpreted differently due to direction perception mechanisms, some of which were described include Interaural Time Delay, Interaural Time Difference, and head movements of a person. Orientation of sounds sources in acoustic space can be analysed also from other perception mechanisms to do with distance. Some of which are determined by frequency, reverberation, loudness and early reflections.
David Malham is explaining how sound in space can be interpreted differently due to perception mechanisms. Human sound sense is incredible to the point where it provide insights of our spatial environment, which our sight perception sometimes wouldn’t recognise. Malham mentions about perceptual issues, such that “it is widely, but perhaps wrongly, accepted that when we talk about our perception of what we call reality, it is the visual sense is pre-eminent.” He goes on to describe how without the “correct soundscape they lose much of their depth, becoming just the picture.” A solution to the right perceptual spatial environment is through the “reality equivalence” of the sound and the visual. In terms of the effect of the acoustics of a performance space Malham mentioned that there are two concerns about ambsisonic diffusion.
Understanding how perception mechanisms help us observe our spatial environment is helpful when applying to solve an architectural problem. For example striving for reality equivalence in an architectural performance space is important. It is not only what you see with your eyes that determine reality but what you are able to hear provides this equivalence. Also in the design of a performance space, the designer needs to take great consideration when dealing with the local and effects and the overall acoustics. For example positioning speakers from any reflected surfaces can prevent diffusion of sound, and trying to get loudspeakers to reproduce sounds that appear closer. These are the consideration when designing a performance space that an architect must consider.
Bibliography:
- David Malham, 3-D acoustic space and its simulation using Ambisonics.
Read the following sections
-Physiological considerations
-Perceptual issues
-The Effect of the Acoustics of the Performance Space
The reading ‘3-D acoustic space and its simulation using Ambisonics’ by David Malham, describes how acoustic space can be interpreted differently due to direction perception mechanisms, some of which were described include Interaural Time Delay, Interaural Time Difference, and head movements of a person. Orientation of sounds sources in acoustic space can be analysed also from other perception mechanisms to do with distance. Some of which are determined by frequency, reverberation, loudness and early reflections.
David Malham is explaining how sound in space can be interpreted differently due to perception mechanisms. Human sound sense is incredible to the point where it provide insights of our spatial environment, which our sight perception sometimes wouldn’t recognise. Malham mentions about perceptual issues, such that “it is widely, but perhaps wrongly, accepted that when we talk about our perception of what we call reality, it is the visual sense is pre-eminent.” He goes on to describe how without the “correct soundscape they lose much of their depth, becoming just the picture.” A solution to the right perceptual spatial environment is through the “reality equivalence” of the sound and the visual. In terms of the effect of the acoustics of a performance space Malham mentioned that there are two concerns about ambsisonic diffusion.
Understanding how perception mechanisms help us observe our spatial environment is helpful when applying to solve an architectural problem. For example striving for reality equivalence in an architectural performance space is important. It is not only what you see with your eyes that determine reality but what you are able to hear provides this equivalence. Also in the design of a performance space, the designer needs to take great consideration when dealing with the local and effects and the overall acoustics. For example positioning speakers from any reflected surfaces can prevent diffusion of sound, and trying to get loudspeakers to reproduce sounds that appear closer. These are the consideration when designing a performance space that an architect must consider.
Bibliography:
- David Malham, 3-D acoustic space and its simulation using Ambisonics.
Week 2 - Annotated Essay - Reverberation
Week 2 - Annotated Essay - Reverberation PDF (Click - Login)
The readings about reverberation from the book ‘Sonic Experience – A guide to everyday sounds’, describes the fundamentals of reverberation, and the effect it has in difference spatial surrounds. Reverberation in Sonic Experience is described by the time takes for the sound to decrease to 60DB (decibels – measure the intensity of sound), which is equivalent to the intensity of sound from a typical conversation. The measurement of reverberation time - RT60 is proportional with the volume of the room. When being placed in a room, you are able to determine “acoustic specificities” by analysing the RT60 curve.
This analysis can inform my own architectural practice in a way of understanding the built space, or unbuilt space. Architecturally speaking if I were to create a room for performance purposes such as a concert hall, I would need to think about the reverberant sound. In a concert hall the reverberant sound dies away over a period of time with the sound energy being absorbed by certain material interactions within that space. If I wanted to create a hall that would resonate throughout for a long period of time for an Opera I would need a more reflective room that would take longer for the sounds to fade away. This can be influenced by materials in the room which are good reflectors or are good at absorbing the sounds. In this example, good reflectors may be appropriate to get a longer reverberated time. Of course the reverberation time for any room should be proportional to intended use. So the reverberation time is the time it drops to 60 dB below original level expressed as RT60.
To determine what a good architectural reverberation time for a hall is, it is good to observe other examples of proficient halls, for example the New York, Carnegie Hall reverberation time is 1.7 seconds.
Bibliography:
• Reverberation Time, hyperphysics, Viewed 27 Junly 2012,
• Augoyard, Jean-Francois & Torgue, Henry, 2006, Sonic Experience – A Guide To Everydays Sounds, McGill-Queen’s University Press, London
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