Journal Forum

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

The Measurement and Calibration of Sound Reproducing Systems - July 2015

Access Journal Forum

AES E-Library

A Real-Time Multipartial Waveform Analyzer-Synthesizer

Document Thumbnail

A real-time analyzer-synthesizer is described that can process complex signals whose waveforms change with time to the limits of the uncertainty principle. Overlap integrals between the input signal and user-selected basis functions are automatically recorded on (during analysis) or read from (during synthesis) film. Special converters permit using trigonometric amplitudes and phases for analysis and synthesis. Frequency tracking with signal-controlled bandwidth may be used during analysis. Frequency tracking uses a coherence detector to distinguish signals to which a frequency may be ascribed from noise. Various constant fractional or constant absolute bandwidths may be selected. The synthesizer can work with user-provided graphs; any of these curves and those on the film may be used as the modulation function for any selected basis functions.

JAES Volume 17 Issue 4 pp. 439-444; August 1969
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society