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
The Measurement and Calibration of Sound Reproducing Systems - July 2015
A Microprocessor Based TEF Analyzer
A series of computer programs for AC CIRCUIT ANALYSIS and OPTIMIZATION and MEASUREMENTS will be explained. The ANALYSIS program plots graphs for GAIN, PHASE, PHASE DELAY, GROUP DELAY, SQUARE WAVE response, IMPULSE response, STEP response, or OUTPUT WAVEFORM for any stimulus waveform, IMPEDANCE magnitude (ohms), and IMPEDANCE PHASE (degrees), given the schematic diagram in RESISTORS, CAPACITORS, INDUCTORS, and CURRENT CONTROLLED CURRENT SOURCES, which can characterize transistors or OPAMPS. This type of analysis is useful for passive and active filters and studies of opamp feedback circuits for closed loop gain and stability. OPTIMIZATION is a powerful addition which tweaks the circuit component values to achieve a target response for transfer functions or impedances. Examples will be shown for creating active filter circuits which can exhibit a 4 pole filter with only 1 opamp. The MEASUREMENT program is used to digitize a square wave stimulus and output waveform of the device under test for FFT and DECONVOLUTION calculations to reveal magnitude and PHASE graphs of audio tape recorders both analogue and digital. The programs run on Hewlett-Packard Desktop Computers 9845, 9826, 9836, 87, and 86.
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.