Browse by Author: Julius Smith

View author profile

Return to Browsing Content | Search for Content

(What are modules and collections?)

Sort by: Results per page:

View: Detail | Compact | Statistics

Impulse Response Measurement Toolbox (col10519)

Authors: Edgar Berdahl, Julius Smith

Institution: CCRMA, Stanford University

Keywords: frequency response measurement, Golay code, impulse response measurement, swept sine, system identification

Summary: The Impulse Response Measurement Toolbox is a simple, convenient, and free open-source solution for measuring impulse responses, magnitude spectra, and phase spectra of single-input, single-output (SISO) linear systems. Two impulse-response measurement methods are explained and demonstrated. The Golay code measurement technique is particularly robust to additive ... weak nonlinearities.

Subject:	Science and Technology
Language:	English
Popularity:	69.06%
Revised:	2008-06-23
Revisions:	5

Impulse Response Measurement Using Golay Complementary Sequences (m15947)

Authors: Edgar Berdahl, Julius Smith

Keywords: Golay, system identification

Summary: A technique using Golay complementary sequences is introduced for measuring impulse responses. Compared to the swept-sine method, it is more robust to additive white noise. Free, open-source software is provided in Matlab (or Octave) and Pure Data (PD) for carrying out impulse-response measurements using the sound hardware found on a typical personal computer.

Subject:	Science and Technology
Language:	English
Popularity:	70.00%
Revised:	2009-09-13
Revisions:	10

Measuring Impulse Responses Using Golay Complementary Sequences and Swept Sinusoids (m15946)

Authors: Edgar Berdahl, Julius Smith

Keywords: frequency response measurement, Golay complementary sequences, impulse response measurement, loudspeaker, swept sine, swept sinusoid, system identification

Summary: Two impulse-response measurement methods are demonstrated, with source code provided in Matlab and Pure Data (PD). The measurement technique using Golay complementary sequences is particularly robust to additive white noise, while the swept sine measurement technique is robust to a weakly nonlinear motor exciting the linear system being measured.

Subject:	Science and Technology
Language:	English
Popularity:	61.27%
Revised:	2009-09-13
Revisions:	6

Monochord Assembly Instructions (m15882)

Author: Julius Smith

Keywords: magnetic pickup, monochord, optical sensor, string physics

Summary: This module describes assembly of the RealSimple monochord. The monochord consists of a steel guitar string, rigidly terminated and stretched to a variable tension. Both optical and magnetic pickups are used. Subsequent laboratory exercises are concerned with making elementary measurements and observations of monochord vibration and decay.

Subject:	Science and Technology
Language:	English
Popularity:	63.78%
Revised:	2008-03-26
Revisions:	New

Swept Sine Impulse Response Measurement (m15945)

Authors: Edgar Berdahl, Julius Smith

Keywords: swept sine, system identification

Summary: The swept sine measurement technique is used for measuring impulse responses. It has advantages when measuring weakly nonlinear systems in that the linear and nonlinear components can be separated to some extent. Free, open-source software is provided in Matlab (or Octave) and Pure Data (PD) for carrying out swept ... typical personal-computer.

Subject:	Science and Technology
Language:	English
Popularity:	88.30%
Revised:	2008-08-19
Revisions:	4

Popularity is measured as percentile rank of page views/day over all time

Connexions

Sections

Browse by Author: Julius Smith