white and -or pink noise

T

topend

New Member

• Oct 24, 2008

• #1

I would like to build a white or pink noise project to help my sleeping with my tinnitus. I did find a very simple diagram here but would like something I can have some control over and can be hooked to a speaker, help anyone??
Peter.

 

K

kchriste

New Member

Forum Supporter

• Oct 24, 2008

• #2

You could tune an FM radio between stations. You can make a white noise generator with a PIC like this one. It can also be done using shift-registers fed back with an XOR gate like **broken link removed** but the PIC requires fewer parts.

 

audioguru

Well-Known Member

Most Helpful Member

• Oct 25, 2008

• #3

A zener diode or backwads connected transistor makes white noise that can be amplified.
A little LM386 power amplifier can be connected for a voltage gain of 200 which might be enough. A single transistor can amplify the noise more.

 

Boncuk

New Member

• Oct 25, 2008

• #4

**broken link removed**

 

audioguru

Well-Known Member

Most Helpful Member

• Oct 25, 2008

• #5

Boncuk said:

**broken link removed**

Click to expand...

No.
This is the correct address:
**broken link removed**

It uses the avalanche breakdown of the reverse-biased emitter-base junction of a silicon transistor (about 7V) as a noise source.

 

blueroomelectronics

Well-Known Member

• Oct 25, 2008

• #6

You could also buy a CD designed as a sleep aid, some clock radios do noise generation too.
**broken link removed**

 

Boncuk

New Member

• Oct 25, 2008

• #7

audioguru said:

No.
This is the correct address:
**broken link removed**

Click to expand...

thanks for the correction. I just copied it from the browser.

 

T

topend

New Member

• Oct 27, 2008

• #8

Thanks people, lots of great info.
Peter.