Headphones with Link G4+ Knockblock

[Samurai Supra]

Hi Chaps.

First time tuner here, attempting to tune my Supra on a link plugin with a g4 knock block, (brand new item)

I have a set of iPhone headphones which work fine (tested on my phone & laptop), but cannot hear anything on the knock block with the vol on full.

I tried a set of elcheapo head phones, getting some noise, it is quite faint and only on one side of the headphone set.

I am using a single Bosch wideband bolted between the stock sensors.

To test I bolted another sensor to the intake using seperate wiring (the one that came with the knock block), same result.

Should I be using better headphones or is something wrong with the knock block?

THanks.

[remski2]

I found out that recording the audio works much better.

Old link manual has a step-by-step procedure how to graph the knock and focus on the areas of interest.

http://www.enginelogics.com/wp-content/uploads/pdf/knockblock.pdf (Staring section 3.2.2)

You might want to play around with frequency filters and speeds once you have a sample.  

 

I had audio split, feeding the Link software and the NCH software but I cant really distinguish the knock by just looking at the Link graph. 

So  now I just record and analyze in NCH only. 

[Samurai Supra]

Thanks.

I was considering trying that.

Did you find the knockblock audio level low as well?

 

[remski2]

No. Level was good. 

Hook it up to a laptop and download the NCH software.

Make sure its charged if you havent.  Maybe thats your problem ?

I find it that 1/4 turn on the gain is just the right level in my laptop without clipping the audio. 

[Adamw]

You need to use head phones that have a 3 pole 3.5mm jack, often referred to as stereo.  Most smartphone earbuds have a 4 pole plug as they also have a microphone, these won’t work.

[Samurai Supra]

2 hours ago, remski2 said:

No. Level was good. 

Hook it up to a laptop and download the NCH software.

Make sure its charged if you havent.  Maybe thats your problem ?

I find it that 1/4 turn on the gain is just the right level in my laptop without clipping the audio. 

I did charge it, maybe it was not fully charged, will put it on again.

Will try the laptop and a new set of headphones.

Thanks mate

 

1 hour ago, Adamw said:

You need to use head phones that have a 3 pole 3.5mm jack, often referred to as stereo.  Most smartphone earbuds have a 4 pole plug as they also have a microphone, these won’t work.

Thanks Adam, makes sense.
Will go get a new pair..