Stone Studio

Resources:

Fast Convolution
Covers various implementations of linear convolution using the DFT, including Overlap-Add and Overlap-Save.
Upsampling vs. Oversampling for Digital Audio
An article about the benefits of these techniques.
The Scientist and Engineer’s Guide to Digital Signal Processing
A great practical introduction to DSP. (Free to download)
Information on Gibbs Phenomenon
Wikipedia article on it.

Articles on Sampling below the Nyquist Rate

Sampling [...]

General DSP Central

dspGuru a lot of good free information on DSP was available, it covers Tutorials, HowTos, Tricks, and more.
TechOnline provides users with a host of education resources, which range from Webinars to online courses to a research library of white papers. At the same time, the site offers engineers the chance to evaluate products [...]

“Linear Phase” refers to the condition where the phase response of the filter is a linear (straight-line) function of frequency (excluding phase wraps at +/- 180 degrees). This results in the delay through the filter being the same at all frequencies. Therefore, the filter does not cause “phase distortion” or “delay distortion”. The lack of [...]

Selected Datasets
Astronomy

Sloan Digital Sky Survey
The Sunspot Cycle

Biomedical

EEG Data
RR series
Physiobank
AtGenExpress

Blog

Weblogs and social media 2007
Blog06

Climate and environmental data

Earth Trends : data tables.
lifeunderyourfeet: soil data collected from wireless sensors
Envirofacts Data Warehouse
European Climate Assessment&DataSet
National Space Science & Technology Center

Documentation
a data file
another data file

Climatic [...]

If we could transmit a 1 kHz sine wave over a channel having a bandwidth of 1 kHz, how much bandwidth do we need if we would like to transmit a 1 kHz square wave?