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Spatial Impulse Response Rendering I: Analysis and Synthesis
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2005
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MusicAeroacousticsRealistic RenderingEngineeringSound RenderingFormal Subjective EvaluationSpatial Impulse ResponseAnalysis-synthesis MethodSpatial AudioPhoneticsNoiseAudio AnalysisImmersive AudioSpeech PerceptionExpressive RenderingMultichannel Loudspeaker SystemNon-photorealistic RenderingSpeech CommunicationSpeech ProcessingArts
Spatial impulse response rendering (SIRR) is a recent technique for reproducing room acoustics with a multichannel loudspeaker system. SIRR analyzes time‑dependent direction of arrival and diffuseness of measured room responses within frequency bands, then synthesizes a multichannel response suitable for any surround loudspeaker setup, with a technical description of the analysis‑synthesis method provided. When loaded into a convolving reverberator, the synthesized responses produce a very natural perception of space matching the measured room, and formal subjective evaluation results are reported in a companion paper to be published in JAES in 2006.
Spatial impulse response rendering (SIRR) is a recent technique for the reproduction of room acoustics with a multichannel loudspeaker system. SIRR analyzes the time-dependent direction of arrival and diffuseness of measured room responses within frequency bands. Based on the analysis data, a multichannel response suitable for reproduction with any chosen surround loudspeaker setup is synthesized. When loaded to a convolving reverberator, the synthesized responses create a very natural perception of space corresponding to the measured room. A technical description of the analysis-synthesis method is provided. Results of formal subjective evaluation and further analysis of SIRR are presented in a companion paper to be published in JAES in 2006 Jan./Feb.