Title :
Synthesizing Multichannel Recordings Based on Adaptive Spectrogram Morphing
Author :
Lin, Ching-Shun ; Kyriakakis, Chris
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
In this paper we propose two graph-based morphing approaches that can synthesize microphone signals with acoustical characteristics which match those of a desired microphone. The overall system involves the short-time Fourier transform (STFT) and cosine similarity measure (CSM) for formulating and matching signals in the time frequency domain, respectively. In addition, the spectrogram is adjusted by morphing algorithms according to the trend extracted from the pairwise reference spectrograms. We also present results of the synthesis of microphone signals that simulate what a spot microphone would pick up near a target instrument.
Keywords :
Fourier transforms; audio signal processing; graph theory; microphones; signal synthesis; time-frequency analysis; adaptive spectrogram morphing; cosine similarity measure; graph-based morphing approach; microphone signal synthesis; pairwise reference spectrograms; short-time Fourier transform; signal matching; synthesizing multichannel recordings; time frequency domain; Audio systems; Conductors; Control system synthesis; Fourier transforms; Frequency; Microphones; Signal processing; Signal synthesis; Spectrogram; Weight control;
Conference_Titel :
Innovative Computing, Information and Control (ICICIC), 2009 Fourth International Conference on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4244-5543-0
DOI :
10.1109/ICICIC.2009.345
