Title :
2-dimensional audio phase measurements
Author :
Daniel, J. ; Childs, J. ; Shah, A. ; Cheung, D. ; Schmalzel, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rowan Univ., Glassboro, NJ, USA
Abstract :
Certain audiophiles and audio engineering sources state that one measure of the fidelity of a sound source is its ability to accurately reproduce the characteristics of the waveform of the initially recorded source. As such, a low cost, straightforward means of measuring and characterizing the shape of a sound source´s wavefront is desired. A simple means of performing this characterization via phase difference measurements is explored. This paper outlines the design of a 2-D audio phase measurement system
Keywords :
audio signal processing; loudspeakers; phase detectors; phase measurement; prescalers; sound reproduction; waveform analysis; 2D audio phase measurement; initially recorded source; loudspeaker performance; microphone positioning; phase detector; phase difference measurements; phase measurement system; serial interface; sound quality; sound source fidelity; stepper motor control; waveform characteristics reproduction; Counting circuits; Microcontrollers; Micromotors; Microphones; Phase detection; Phase measurement; Position measurement; Shape measurement; Time measurement; Yarn;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-5890-2
DOI :
10.1109/IMTC.2000.846907
