Automated Loudspeaker Balloon Measurement - Audiomatica Srl

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Managing Reflections • Is it possible to use time windowing to get rid of the room reflections – The IR must be reflection free for at least T=1/f, where f is the lowest frequency we want to measure – In order to get this the source must be sufficiently far away from reflective boundaries, or the boundaries must be treated (in the frequency range) to be absorpting. • C.Struck, S.Temme, “Simulated Free Field Measurements”, JAES, Vol. 42, No. 6, 1994 June. 24 3D Polar Measurements M. Bigi, D. Ponteggia - Audiomatica
25 Room Reflections ceiling reflection R S direct path source wall receiver wall reflection lateral reflection reflection h floor reflection W d r d D 3D Polar Measurements M. Bigi, D. Ponteggia - Audiomatica H d s Given the minimum frequency to be measured it is possible to calculate the needed room dimensions
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: Not or Semi-Anechoic • There are
Page 27 and 28: Managing Reverberation • The reve
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

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