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MultiPurpose Auditorium Sound Reinforcement System Design ECE 40020 Spring 2016 1

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Page 1: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Multi‐Purpose AuditoriumSound Reinforcement System Design

ECE 40020 ‐ Spring 2016

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Page 2: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Outline

• Primary System Design Constraints• System Design Constraints • Venue Illustration• Loudspeaker Selection, Placement, and Rigging

• EASE Simulation Results• Power Amplifier Requirements and Selection

• Signal Processing Requirements and Selection

• Mixing Console Requirements and Selection

• Microphone Requirements and Selection

• Signal Path Wiring Diagram• Rack Requirements and Design• Cabling and Wiring Requirements• System Component List and Street Price Estimate

• Summary and Recommendations

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Page 3: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Primary System Design Constraints

• Generic fan‐shaped auditorium with seating for 6000 (approx. 3750 main floor, 1500 1st balcony, 750 2nd balcony)

• Minimum SPL of 105 dB at back row of main floor seating

• No more than ±5 dB variation in SPL over the entire seating space for the 500 Hz, 1 KHz, 2 KHz, 4 KHz, and 8 KHz frequency bands

• Frequency response of 40 –16,000 Hz ±5 dB

• %ALCONS no greater than 10% over entire seating space

• Minimum 48‐channel mixing console

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Page 4: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Primary System Design Constraints

• Minimum of 4 separate monitor mixes with corresponding monitor loudspeaker systems

• Support for 20 compatible wireless microphone channels

• Good assortment of general‐purpose wired and wireless microphone systems

• Digital media recording and playback capability

• All equipment mounted in rack cabinets

• Budget of $500,000

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Page 5: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

System Design Constraints

• Long auditorium, was going to need delay speakers• Only used speakers that have EASE models/data • Powered speakers for ease of use and don’t have to buy extra amps• Wanted network Enabled devices

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Page 6: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Venue Illustration

• Dimensions• 320‘ long• 225‘ wide• 85.5‘ high

• Seating• 3728 on main floor• 1498 on first balcony• 880 on second balcony• 6106 total

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Page 7: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Loudspeaker Selection, Placement, and Rigging

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Page 8: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Loudspeaker Selection, Placement, and Rigging

Name Amount Position

JBL VRX 932LAP 48 above 

stage

Meyer Sound UPM‐1P 22 on stage

JBL VTX F15 8 under balcony

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VRX-AF

Page 9: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

EASE Simulation Results

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Freq: 500 HzMax SPL: 111.77Min SPL: 106.35

Page 10: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

EASE Simulation Results

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Freq: 2000 HzMax SPL: 108.04Min SPL: 100.9

Page 11: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

EASE Simulation Results

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Freq: 8000 HzMax SPL: 107.26Min SPL: 98.74

Page 12: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

EASE Simulation Results

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Max ALCons: 8.75%

Page 13: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Signal Path Wiring Diagram

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Page 14: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Power Amplifier Requirements and Selection

• Electrical watts example  calculation

• 1m/1w 108 db• Want 100 dB at a seat 20 ft away• 20*log (20) = 26 dB• 10 db for peak head room• 100+26+10 = 136 dB• 10^(28/10)= 631 W• 200W/800W peak so within range

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Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay speakers, rest are self powered

Delay speakers are bi-amped Expensive, but recommended by manufacture

Speaker Power ratings:HF: 200W/800W peakLF: 1000W/4000W peak

Page 15: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Signal Processing Requirements and Selection

Symetrix Edge DSP• Dante networked• 2 4‐channel Analog output cards

• 2 4‐channel Digital output cards

• All the processing we will ever need

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Page 16: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Cabling and Wiring Requirements• No need for a snake because of Dante• SpeakOn to be used in arrays and delays• Xlr used on front fills, wired mics, wireless receivers to Rio box (convert from xlr to Ethernet)

• Ethernet used from stage inputs to console and from console to DSP

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Hardwear quantity

ethernet cable 200ft 2

xlr cable 30ft 4

xlr 50 ft 16

xlr 20 ft 10

xlr 10 ft 45

speakon 3ft cable 43

speakon 50ft cable 11

Page 17: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Mixing Console Requirements and Selection

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• 72 mono, 8 stereo input channels, dante

• 24mixes/ 8 matrices 

• Fader configuration: 16‐fader left section, 8‐fader Centralogic section, 8‐fader right section, 2‐fader master section .

• Built‐in meter bridge.

Requirements:• minimum 48-channel mixing

console• minimum of 4 separate monitor

mixes • digital media recording/playback

capability

Yamaha CL5

Page 18: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Microphone Requirements and Selection

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Requirements• good assortment of general‐purpose wired and wireless microphone systems for speaking, individual vocalists, a variety of musical instruments, choral performances

• 20 wireless microphones

Wireless Beta58

Beta 52A

Beta 181Countryman E6

Page 19: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Microphone Requirements and Selection

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Microphones quantity pattern wired y/n details

1ulxd2/b58 2super card n vocal dymanic mic

2ulxd2/b87 2super card n vocal condenser mic

3beta56A 3super y toms and snare

4beta52A 1super y kick drum

5beta 98H/c 1card y brass instrument

6beta 181 2all y

changeable pattern, drum overhead, ambinet, snare

7ulxd2/sm58 2card n dynamic

8ksm8 1card y proximity effect reduction

9CVO 12card y condenser

10countryman E6 4omni n condenser

11ulxd1 10n/a transmitters

12wa305 4n/a n guitar/bass

13wl93 2omni n lavalier mic

14ew D1‐845‐s‐nh‐us 4super n vocal mic

CVO choir mic

EW 845

ksm8

Beta 56A

Page 20: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Rack Design

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On stage rack Delay Rack DSP Rack

• Mac will sit on top of DSP rack

• Amp rack may be located in a side room

Will Use 3 Odyssey racks• One meduim duty 6 space carpeted amp rack• One black label 12 space rolling rack• One 2 space rack carpeted for DSP

Page 21: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

System Component List and Street Price Cost Estimate

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Hardwear what is it units cost per unit cost of groupJBL VRX 932lap 48 5398 259104meyer sound upm‐1p 22 2100 46200vtxf15 8 2850 22800Yamaha CL5 console 1 27,499 27499rio3224‐D analog to dante converter 1 8,499 8499Shure ULXD4Q shure wireless reciever 4 5,015 20060P3TRA215CL personal monitor systems 4 799 3196EM D1 sennheizer wireless receiver 4 499 1996vrx932LA‐AF array hangers 8 1,049 8392I‐tech 4x3400 amplifiers 4 11,115 44461symetrix edge dsp 1 rack unit 1 5,100 5100 4 channel analog output card bss bludigital 2 269 538 4 channel digital output card bss bludigital 2 269 538ethernet cable 200ft cabling 2 33 66mac book pro computer 1 1,299 1299xlr cable 30ft cabling 4 30 119.96xlr 50 ft cabling 16 15 240xlr 20 ft cabling 10 15 150xlr 10 ft cabling 45 15 675odyssey 12 space rack rack 1 232 232

odyssey 6 space rack rack 1 180 180odyssey 2 space amp rack rack 1 90 90speakon 3ft cable 43 8 344speakon 50ft cable 11 23 253

Microhones mics 50 14994

Total 467,025.96

Speakers

Hardwear

Page 22: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Summary and Recommendations• Summary of work completed

• Drew up 6,000 seat auditorium• Placed and aimed speakers to meet minimum coverage requirements• Researched different consoles, amplifiers, and DSPs to find the right ones for us• Cost spreadsheet of all components

• Results obtained from design and simulation• Within 5 db difference of 105 dB at all seats• Difference in levels between low and high frequencies is also less then 10 dB• People in the back get the quietest, people in the middle of the first floor get the loudest

• Networked cable and powered speakers make things easier• How extra funds would be utilized if available

• Better wall materials• Higher quality mics• Band shell

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Page 23: Multi Purpose Auditorium Reinforcement System Design ECE ... · PDF fileECE 40020 ‐Spring 2016 1. ... Only needed 4 I-tech 4x3500HD amplifiers for our 8 delay ... mac book pro computer

Questions and Discussion

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