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ACOUSTICS
CASE STUDY
AUDITORIUM
1. Jamshed Bhabha Theatre
2. St. Andrew’s College Auditorium
SPACE RELATIONSHIPS
• Strong echoes and focusing lead to a non uniform sound level
within the room which is not desirable.
• These features of...
JAMSHED BHABHA
THEATRE
HISTORY
The National Center for the Performing Arts (NCPA) was envisioned by the late Dr. Jamshed Bhabha as a
bastion to b...
LOCATION
Jamshed Bhabha Theatre, NCPA,
NCPA Marg, Nariman Point,
Mumbai, Maharashtra
SITE AND NEIGHBOURHOOD
• The NCPA complex occupies an area of about 3200m².
• The site can be accessed through 6 gates, th...
SITE LAYOUT
The 5 main theatres within
the NCPA complex are:-
1. Tata Theatre
2. Jamshed Bhabha Theatre
3. Godrej Dance Th...
AUDITORIUM LAYOUT
VIP
Entry
Entrance
Staircase
Foyer
Snacks counter
Toilet
Ticket
Lifts
PUBLIC ENTRY/EXIT AND SEATING
 ACCESS
To access the theatre for the
public, there are:
• 6 side doors
• 2 foyer entries
...
AUDITORIUM INVERTED CEILING PLAN
• Divided into 3 parts the
ceiling in the middle can
double up for the
extended stage or
...
STAGE FLOOR PLAN
STAGE INVERTED CEILING PLAN
SECTION
Chandelier
Stage
Orchestra
Pit
Catwalk
OHT
Auditorium
Toilet
Snack
Counter
Lobby
VIP
Entrance
A.H.U room
Projector...
BACKSTAGE
 BACKSTAGE ENTRY FOR CREW
MEMBERS
There are 4 entries for artists and
crew members directly to the
backstage of...
GREEN ROOM
• Total no. of green rooms = 10
• No. of floors = G+2
• Ground floor – 4 rooms
• 1st floor – 3 rooms
• 2nd floo...
WALLS
• The panels on the walls around the first three seating rows /
orchestra pit of the auditorium is made of concrete ...
FLOORS AND CATWALKS
 AUDITORIUM
• The material used in the flooring is woolen carpet.
• These woolen carpets are very goo...
CONTROL ROOM
• Control is divided into three
parts
• The first section was sound
room with another partitioned
channel mix...
CONTROL ROOM
ST. ANDREWS
AUDITORIUM
HISTORY
• During 1980 much planning was done to study all the aspects to start this college.
• Bandra was chosen for this ...
LOCATION
ENTRY
EXIT
AUDITORIUM
ST. ANDREWS COLLEGE,
DOMINIC ROAD,
BANDRA WEST, MUMBAI
ENTRY
EXIT
ST JOSEPHS PRIMARY
SCHOOL...
ST ANDREWS AUDITORIUM
• St Andrews Auditorium is regarded as one of its kind in Mumbai.
• St. Andrew's Auditorium stages c...
PUBLIC ENTRY/EXIT AND SEATING
 ACCESS
To access the theatre for the
public, there are:
• 4 side doors
 DOORS
• 1.7 m (w)...
INVERTED CEILING PLAN
• 54 CEILING
LIGHTS(YELLOW
CIRCLES)
• 28 BLOWERS (RED
SQUARES)
• 15 SPOT LIGHTS
FOCUSING ON THE
STAG...
STAGE
STAGE
• THERE ARE TWO SEPARATE
GREENS ROOMS FOR GIRLS
AND BOYS EACH WITH
ATTACHED TOILET.
• ONE ROOM IS DIVIDED
INTO 3 USI...
SECTION
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Jamshed bhabha theatre, ncpa, nariman point - ACOUSTICS - AUDITORIUM - MUMBAI

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ACOUSTICS - AUDITORIUM - MUMBAI

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Jamshed bhabha theatre, ncpa, nariman point - ACOUSTICS - AUDITORIUM - MUMBAI

  1. 1. ACOUSTICS CASE STUDY AUDITORIUM 1. Jamshed Bhabha Theatre 2. St. Andrew’s College Auditorium
  2. 2. SPACE RELATIONSHIPS
  3. 3. • Strong echoes and focusing lead to a non uniform sound level within the room which is not desirable. • These features of the auditorium design : scatters, convex (non- focusing) ,surfaces on balcony fronts, absorption materials, carpet . AVOIDANCE OF STRONG ECHOES AND FOCUSING OF SOUND RAYS • Intimacy implies a short time between the first reflection of sound to the ear and the direct sound from the source. • Sound level of the source needs to be distinctly higher than the background sound. This promotes good speech intelligibility. INTIMACY, CLARITY • This keeps the background noise level down. • Thick heavy walls and doors help to reduce the background noise. • Seals on doors are important . • It is also important to reduce noise from air handling systems, walking on floors and also talking outside the room. REDUCTION OF SOUNDS AND VIBRATIONS CONDITIONS FOR GOOD ACOUSTICS IN AUDITORIUM
  4. 4. JAMSHED BHABHA THEATRE
  5. 5. HISTORY The National Center for the Performing Arts (NCPA) was envisioned by the late Dr. Jamshed Bhabha as a bastion to be an upholder of the arts and culture in Mumbai and India. The first, the TATA Theatre, though stated to have conceptual influences from Welton Becket and Phillip Johnson was essentially designed, detailed and executed by Rustom Patell, of Patell Batliwala & Associates. Patell a Taliesin fellow and TATA scholar was at that point in time working on numerous projects for the Bhabha family. The facility thereafter grew to have numerous theatres, the second large multi-purpose facility being the Jamshed Bhabha Theatre. Designed by RBJ Patell the theatre was substantially built when an electrical short circuit razed the inside beyond repair. Re-design and re-construction provided the facility in use today, including a neo-classical marble stair donated by the Petit family that sits as a frontispiece in the main lobby. The stair itself is a folly and a piece of art rather than being utilitarian and was removed and re-located with diligent documentation during removal and re-construction. This theatre follows a more pragmatic shoe-box concept with a somewhat steep yet regular rake for the seating. Colours and materials received the close eye of Dr. Bhabha himself. Acoustics saw the influencing ideas of the late Burjor Mistry, a well recognized acoustician in Indian circles. • Founder : Dr. Jamshed J Bhabha • Architect : Philip Johnson and Patel Batliwala Associates • Year : 1959 • Capacity : 1109 Person Dr.JamshedJBhabha Ar.PhilipJohnson
  6. 6. LOCATION Jamshed Bhabha Theatre, NCPA, NCPA Marg, Nariman Point, Mumbai, Maharashtra
  7. 7. SITE AND NEIGHBOURHOOD • The NCPA complex occupies an area of about 3200m². • The site can be accessed through 6 gates, the side is divided into 6 major blocks. • Apart from these, within the site there are parking spaces, A.C. plants, staff quarters and electric substations. • The site is located in a commercial area. • NCPA is surrounded by hotels, malls, offices etc. • NCPA is 1km away from Churchgate station
  8. 8. SITE LAYOUT The 5 main theatres within the NCPA complex are:- 1. Tata Theatre 2. Jamshed Bhabha Theatre 3. Godrej Dance Theatre 4. Little Theatre 5. Experimental Theatre Other than these there are many more facilities available within the complex, like an open air plaza, gardens, café, library, teaching and research etc. There are 6 gates that can be used to access the site.
  9. 9. AUDITORIUM LAYOUT VIP Entry Entrance Staircase Foyer Snacks counter Toilet Ticket Lifts
  10. 10. PUBLIC ENTRY/EXIT AND SEATING  ACCESS To access the theatre for the public, there are: • 6 side doors • 2 foyer entries  DOORS • 2.4 m (w) x 2.1 m (h) • 7 inch thick • With panic bars  MATERIALS Leather and thick foam cushioning from the outside to prevent outside noise into the theatre and 15cm dense wood inside.  SEATING Seating for 1109 and gets reduced by the use of: • Orchestra pit (91 seats) • In house sound and light monitor (15 seats) 23+31 12+12+12+12 12+12+12+12 12+12+12+12 12+12+12+12 12+12+12+10 12+12+12+10 4+12+12+12+4 4+12+12+12+4 12+12+12 12+12+12 12+12+12 12+12+12 12+12+12 15+12+15 14+12+14 14+12+14 14+12+14 12+12+12 12+12+12 11+12+11 10+12+10 10+10+10 8+12+8 7+10+7
  11. 11. AUDITORIUM INVERTED CEILING PLAN • Divided into 3 parts the ceiling in the middle can double up for the extended stage or audience. • The ceiling of the stage and the adjacent are laid at an angle while the ceiling of the seating area is suspended 2-3m below the actual ceiling surface. • The grid like ceiling is equipped with centralized air conditioning system and lighting fixtures spread all over covering the entire seating area. • In between the grid is another framework which holds the false ceiling in place.
  12. 12. STAGE FLOOR PLAN
  13. 13. STAGE INVERTED CEILING PLAN
  14. 14. SECTION Chandelier Stage Orchestra Pit Catwalk OHT Auditorium Toilet Snack Counter Lobby VIP Entrance A.H.U room Projector Room
  15. 15. BACKSTAGE  BACKSTAGE ENTRY FOR CREW MEMBERS There are 4 entries for artists and crew members directly to the backstage of which 1 is from the foyer. • 2.4 m (w) x 2.1 m (h) • 3 inch thick. • 1cm thick leather and foam cushioning outside and rest is dense wood inside.  LOADING/UNLOADING There are 3 entries directly from outside for loading/unloading of the props and instruments. • 3m (w) x 5.6m (h) • 2 x wooden doors • 1 x rolling shutter. The A.C. compressors are all placed on the backside of the stage along with the fire equipment.
  16. 16. GREEN ROOM • Total no. of green rooms = 10 • No. of floors = G+2 • Ground floor – 4 rooms • 1st floor – 3 rooms • 2nd floor – 3 rooms • Sound proof 3inch thick backstage door to green room • 2inch thick wooden greenroom doors • Each green room has an A.C. • Each green room has its own toilet and cupboards • There are 3 makeup mirrors in each green room with 6 lights for each mirror.
  17. 17. WALLS • The panels on the walls around the first three seating rows / orchestra pit of the auditorium is made of concrete or Plaster of Paris, with a pointed finish plaster. • Marble is used for the paneling of the lower portions of the auditorium. • The panels above the control booth in the rear of the auditorium are made of concrete with marble inlays. • There are hollow projections that come out from the sides of the auditorium that may act as resonators or anti focusing surfaces that help in dispersion of sound. • The rear of the stage has diffusive wooden panels in different shapes. • This along with the acrylic banners hung in the ceiling help to diffuse and reflect sound appropriately into the auditorium.
  18. 18. FLOORS AND CATWALKS  AUDITORIUM • The material used in the flooring is woolen carpet. • These woolen carpets are very good absorptive material. • The carpet is 80% wool and 20% nylon.  STAGE • The stage floor is made of hard wood  CATWALK • There are 33 Back drops which work on counter balance system. • The steel beams in the catwalk are coated with vermicular coating, hence heat can be absorbed for 5-6 hours. • There is a catwalk above the seating area for changing and repairing lights.The intensity of lights can be controlled from the technical control room.
  19. 19. CONTROL ROOM • Control is divided into three parts • The first section was sound room with another partitioned channel mixer in the third room. • The second section was projection room and had different opening sizes for different types of projectors. • The third part was light room which had the additional fire setup • The whole control room was air conditioned and carpet floored
  20. 20. CONTROL ROOM
  21. 21. ST. ANDREWS AUDITORIUM
  22. 22. HISTORY • During 1980 much planning was done to study all the aspects to start this college. • Bandra was chosen for this college because of the Catholic population in this suburb. • 1st January 1981- inauguration of the new college named as St Andrews College of arts, commerce and science. • June 1981- establishing the college and constructing the new building required to house the college. • A new Trust, St. Andrew’s Society for Education and Research was created on 10 July 1981.
  23. 23. LOCATION ENTRY EXIT AUDITORIUM ST. ANDREWS COLLEGE, DOMINIC ROAD, BANDRA WEST, MUMBAI ENTRY EXIT ST JOSEPHS PRIMARY SCHOOL ARYA VIDYA MANDIR ST JOSEPHS CONVENT HIGH SCHOOL ANDORA’S CAFE HOLY FAMILY HOSPITAL AND RESEARCH CENTRE TWO WHEELER PARKING CANTEEN BASKETBALL COURT PEDESTRIAN PATHWAY
  24. 24. ST ANDREWS AUDITORIUM • St Andrews Auditorium is regarded as one of its kind in Mumbai. • St. Andrew's Auditorium stages children's music and theatre, spiritual and devotional concerts, as well as performances from the Marathi stage. • It is a fully equipped auditorium. Its infrastructure and amenities make it a popular choice to organize events in this busy Mumbai suburb. • It has a total seating capacity of 250 seats, a great lighting grid, wheelchair access, and ample parking space.
  25. 25. PUBLIC ENTRY/EXIT AND SEATING  ACCESS To access the theatre for the public, there are: • 4 side doors  DOORS • 1.7 m (w) x 2.1 m (h) • 7 inch thick.  MATERIALS Leather and thick foam cushioning from the outside to prevent outside noise into the theatre and 15cm dense wood inside.  SEATING Seating for 811 ENTRY/EXIT ENTRY/EXIT 1.5M 1.5M CANTEEN CANTEEN
  26. 26. INVERTED CEILING PLAN • 54 CEILING LIGHTS(YELLOW CIRCLES) • 28 BLOWERS (RED SQUARES) • 15 SPOT LIGHTS FOCUSING ON THE STAGE. SPOTLIGHTS AC DUCT VENTS
  27. 27. STAGE
  28. 28. STAGE • THERE ARE TWO SEPARATE GREENS ROOMS FOR GIRLS AND BOYS EACH WITH ATTACHED TOILET. • ONE ROOM IS DIVIDED INTO 3 USING CURTAINS. • LONG DRESSING TABLE THROUGH OUT ONE SIDE OF THE ROOM WITH 6BULBS PER MIRROR. • THE LOADING AND UNLOADING OF THE INSTRUMENTES AND PROPS HAPPENS TO THE RIGHT SIDE OF THE STAGE. • NON MOVABLE FINS ON THE PERIPHERY OF THE STAGE
  29. 29. SECTION

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