The following are a list of the modules and collections in Connexions that have been submitted for review.
(1) Title: Digital Filter Structures and Quantization Error Analysis
Author: Doug Jones
Content Description:
Practical implementations of digital filters introduce errors due to finite-precision data and arithmetic. Many different structures, both for FIR and IIR filters, offer different trade-offs between computational complexity, memory use, precision, and error. Approximating the errors as additive noise provides fairly accurate estimates of the resulting quantization noise levels, which can be used both to predict the performance of a chosen implementation and to determine the precision needed to meet design requirements.
(2) Title: Speech Signal Analysis
Author: Don Johnson
Content Description:
An overview of the speech model and spectrogram analysis of speech signals.
(3) Title: Delays and Effects
Author: Davide Rocchesso
Content Description:
Delay lines and comb filters are the key elements of many digital audio effects. This module explains what they are and how they are typically implemented.
Audience:
late UG, DSP engineer
Level:
intermediate
(4) Title: Musical Signal Processing with LabVIEW
Author: Ed Doering (Sam Shearman and Erik Luther editors)
Content Description:
"Musical Signal Processing with LabVIEW," a multimedia educational
resource for students and faculty, augments traditional DSP courses
and supports dedicated courses in music synthesis and audio signal
processing. Each of the learning modules blends video, text, sound
clips, and LabVIEW virtual instruments (VIs) into explanation of
theory and concepts, demonstration of LabVIEW implementation
techniques to transform theory into working systems, and hands-on
guided project activities. Screencasts -- videos captured directly
from the computer screen with audio narration and a hallmark of this
resource -- use a mixture of hand-drawn text, animations, and video of the LabVIEW tool in operation to provide a visually rich learning
environment.
(5) Title: Factoring Polynomials of High Degree
Author: C. Sidney Burrus
Content Description:
The collection consists of seven modules which print out to a 28 page pdf document. It describes a remarkable new algorithm for factoring very high degree (up to 4 million) polynomials. The technique uses the FFT and can be applied to digital signals, hence the submission to the SPS.
(6) Title: Impulse Response Measurement Toolbox
Authors: Ed Berdahl and Julius Smith
Content Description:
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 white noise, while the swept sine measurement technique is robust to weak nonlinearities.
(7) Title: Elements of Detection Theory
Author: Don Johnson
Content Description:
Introduction to the theory of detection.
Content Under Review