Building & Architectural Acoustics Building & Architectural Acoustics

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3D Graphs - TTS Spectrogram (Time Shifted Spectra) www.bksv.com, 39 3D Graphs - CSD Waterfall (Cumulative Spectra Decay) www.bksv.com, 40 20
3D Graphs - CSD Spectrogram (Time Shifted Spectra) www.bksv.com, 41 Only 1 more thing to do with Implulse Response Auralization • Anechoic input signal p (%) • is convolved with BRIR Binaural Room Impulse Response 60 40 20 0 -20 -40 -60 -80 60 40 20 0,2 0,25 0,3 Left ear 0,35 0,4 0,45 time (seconds) Right ear time (seconds) 0,5 0,55 0,6 p (%) 0 -20 -40 -60 -80 Decay curves 0 -5 -10 SPL (dB) -15 -20 -25 -30 -35 -40 -45 -50 -55 0,2 0,25 0,3 0,35 0,4 0,45 0,5 0,55 0,6 0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 2 Time (seconds rel. direct sound) • to give sound at receiver Listen using headphones • Use for analysis and demonstration www.bksv.com, 42 21
Page 1 and 2: Building & Architectural Acoustics
Page 3 and 4: Interior Sound Levels • A-weighte
Page 5 and 6: Now ready, set, go! Reverberation!
Page 7 and 8: What makes a Good Listening Room
Page 9 and 10: Let’s try a simple measurement wi
Page 11 and 12: Impulse - Pistol Shot Time www.bksv
Page 13 and 14: Impulse Response the natural way Pr
Page 15 and 16: What is DIRAC • Dual Input Room
Page 17 and 18: Room Acoustic Standards • Room Pa
Page 19: Room Acoustic Parameters - Graphs (
Page 23 and 24: Calculated Results - Measurement Pa
Page 25 and 26: Tools to improve your room acoustic
Page 27 and 28: ODEON Results - Auralization Flutte
Page 29 and 30: ODEON School Project Original Acous
Page 31 and 32: A bit of terminology • Noise redu
Page 33 and 34: Cavity Resonances www.bksv.com, 65
Page 35 and 36: Isolation Between Spaces • Regula
Page 37 and 38: Airborne Sound Insulation - Measure
Page 39 and 40: Instrument Requirements Investigato
Page 41 and 42: New for Euronoise 2009 • Introduc
Page 43 and 44: BZ5503 - Archive results as normal
Page 45 and 46: Combine Results www.bksv.com, 89 Ex
Page 47 and 48: Let’s take a tour… www.bksv.com

Building & Architectural Acoustics Building & Architectural Acoustics

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