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Noise / White / Pink
Noise Generation Circuits Last Updated on:
Monday, October 03, 2011 06:07 PM
Circuits Designed by Dave Johnson, P.E. :
AUDIO FREQUENCY DIGITAL NOISE GENERATOR
When you need to test an audio circuit with broadband noise, this circuit works
great. It uses just three inexpensive C-MOS ICs that generate a series of output
pulses whose widths vary randomly. I included a level control pot.
Links to
electronic circuits, electronic schematics, designs for engineers, hobbyists, students &
inventors:
Audio Frequency Digital Noise Generator - When you need to test an
audio circuit with broadband noise, this circuit works great. It uses just
three inexpensive C-MOS ICs that generate a series of output pulses whose
widths vary randomly. I included a level control pot. …. [Designed by David
A. Johnson]
Audio noise generator drives earphones or small speaker - This is
a circuit that generates white noise, rolled-off to drive earphones or a
small speaker. White noise creates is a "rushing" sound, which sounds
something like air rushing by your ear(s)....
DSP technique generates arbitrary noise - 10/13/94 EDN-Design Ideas.... EDN
is migrating links. This link is not verified. Search the "title" + "EDN" for
new link.
Make noise with a PIC - 7-Aug-03 Issue of EDN Building a stable noise
generator for audio-frequency purposes requires only a few components. The circuit in
Figure 1 relies on linear-feedback shift registers and some simple software. An
eight-pin Microchip (www.microchip.com] PIC12C508 controller (IC2] with a short
program generates pseudorandom noise at its output pin, GP0.... [Design Idea by Peter
Guettler, APS Software Engineering GmbH, Cologne, Germany]
Noise Enhancer Adds Short Noise Pulses - 11/11/96 EDN-Design Ideas.... EDN
is migrating links. This link is not verified. Search the "title" + "EDN" for
new link.
Noise generator - Sometimes there is a need for a noise generator: this will
work well in the audio range and, without the 680pF capacitor, will extend in the
radio frequency range up to 20-30MHz. Voltage output may vary from 1Vpp to several
volts depending….(added 9/07)
Pseudonoise Generator Doubles its Speed - 12/22/94 EDN-Design Ideas.... EDN
is migrating links. This link is not verified. Search the "title" + "EDN" for
new link.
Single IC forms pseudorandom noise source - 21-Mar-02 Issue of EDN
Trying to find a single IC noise source can be frustrating. National Semiconductor
once made such a noise source for audio applications, but it's now hard to find.
This situation leaves the designer with several choices, most of which involve using
several ICs. You can take the analog approach of using a lot of gain to amplify
diode-avalanche noise, or you can design a linear-feedback-shi.... [Design Idea by
Steve Ploss, Veridian, Dayton, OH]
White noise generator has no flicker noise component - 20-Mar-08 Issue of
EDN A white-noise generator with no flicker noise proves useful for testing
circuits with an extended low frequency response.... [Design Idea by Alfredo Saab and
Randall White, Maxim Integrated Products, Sunnyvale, CA]
