Automated Loudspeaker Balloon Measurement - Audiomatica Srl

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Room Reflections 0.20 Pa Audiomatica Srl LogChirp - Impulse Response 9-20-2008 12.59.27 PM DIRECT SOUND CLIO 0.12 REFLECTION 0.040 -0.040 -0.12 -0.20 0 2.5 4.9 7.4 9.9 12 15 17 20 ms 22 25 CH A dBSPL Unsmoothed 48kHz 4K Rectangular Start 0.00ms Stop 8.63ms FreqLO 115.94Hz Length 8.62ms File: hidriver 0 0.mls 26 3D Polar Measurements M. Bigi, D. Ponteggia - Audiomatica
Managing Reverberation • The reverberation time can cause time aliasing between measurement • There is the need to let the energy decay sufficiently before taking another measurement • The RT60 must be low at least for the frequency range we are measuring • An anechoic chamber is the perfect choice, but a so called “low reverberation chamber” can work good also 27 3D Polar Measurements M. Bigi, D. Ponteggia - Audiomatica
Page 1 and 2: AES San Francisco 2008 Exhibitor Se
Page 3 and 4: Polar Measurements Aim • Polar me
Page 5 and 6: Point Source Model • If the louds
Page 7 and 8: Spherical Coordinate System Weisste
Page 9 and 10: • Simple and FAST Simplest Method
Page 11 and 12: Why H+V is simple? • The measurem
Page 13 and 14: Big Setup Example 13 3D Polar Measu
Page 15 and 16: Full 3D - different approaches •
Page 17 and 18: Interpolation, again? • At this p
Page 19 and 20: Practical considerations • At thi
Page 21 and 22: Anechoic or not? • In theory a bi
Page 23 and 24: Not or Semi-Anechoic • There are
Page 25: 25 Room Reflections ceiling reflect
Page 29 and 30: The new Outline ET250-3D turntable
Page 31 and 32: Turntables Options • Specify whic
Page 33 and 34: New CLIO Autosave y r z x .mls 3
Page 35 and 36: CLIO Automation • Once the turnta
Page 37 and 38: Data Set Size • The Data Set size
Page 39 and 40: 3D Analysis • This is a beta vers
Page 41 and 42: Export Data • There are some ways
Page 43 and 44: Import with EASE SpeakerLab • EAS
Page 45: Thank you! For more info: info@audi

Automated Loudspeaker Balloon Measurement - Audiomatica Srl

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