pcmhacking.net

Programmable knock board preferably two if available.
Since festy has fallen off the side of the planet.
What have ye?

I dont think there is anything available. The sensors are generic but the filters are a band pass with a pulsed output to suit the delco, so pretty custom. They also dont work heaps well. Most people are still recommending knock ears and dont tune by knock sensor.

You can get the plex knock block? They have a software configurable band pass curve and digital trigger, LED indicator for triggers and headphones as the primary feature.

They have a LCD display and show the knock input plot, like a spectrum analyzer I think? sorry I don't know my audio stuff well at all so I probably got the terminology all wrong.

vlad01 wrote:You can get the plex knock block? They have a software configurable band pass curve and digital trigger, LED indicator for triggers and headphones as the primary feature.

They have a LCD display and show the knock input plot, like a spectrum analyzer I think? sorry I don't know my audio stuff well at all so I probably got the terminology all wrong.

Nope it is perfect... Spectrum analyser works... you are meaning spectrum frequency which is closely related to the nyquist theory. then you get into the whole mutlipass and single pass filters etc etc.

All it is representing is all the frequencies that are making up a sound separated individually by looking at the end of them not the side like a traditional sound wave. This is why they grow and shrink while being viewed as the sound wave changes.

Cheers
oldn64

Yep, the Plex knock block looks like the goods,but won't be in the budget for a while.
Thx for the replies fellas.