Audio effects on Raspberry
lazarus / 70-OpenGL

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pascalbythree · 2017-06-13 13:50

Does anybody have example code for Raspbian Linux on a Raspberry III /
Zero.

For graphic sound effects on a Form or in OpenGL. To visualize the
music for my new station.

Included are pictures of my working Amplifier.

Later to follow i am going to put a FM receiver together

and i am considering a yellow TULP BOX with a Raspberry in it to
display a equalizer on my Television.

Anyone a URL / Name / Code  ?

Greets, Wouter van Wegen

PS: Does anybody know weither the 3.5mm jack on my RPI can be
configured as a audio IN port? Or do i need to buy USB Sound device?

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Thaddy · 2017-06-13 15:10

I don't think the jack can be re-configured, but you don't need an
audio USB device. You can obtain good results with one of the small
audio boards
http://elinux.org/index.php?title=RPi_Expansion_Boards#Sound

But you can also use some pins and use software pwm... The pi 1 could
do that for me, so the pi 3 must also be able to do that. I have Pi
3's but never tried it on those.

Isn't the box a bit small for the RPi3?

Maybe you want to be the first that lives inside your RPi3 box?
http://www.plus27design.com/#a-container-home-at-full-speed-ahead

I can also help you with software filters like delay, reverb, flange,
distortion and equalizers etc.