Dual LFO question.

**jloom** · 10-12-2008, 08:57 AM

I'm looking at the "brain brightning" user posted session in the editing software and in one segment for example, I see the red light at 13.3 and the green light at 16.7. It was my understanding that the binaural beat frequency was determined by the the frequency set for the lights. With a segment like this, what is the binaural beat frequency and how is it contrived? I know I've seen discussion of this but I didn't comprehend. I'll have to enter this a step at a time, please be patient with me.

Thanks,
Jerome

**Andy** · 10-12-2008, 09:10 AM

Hi Jerome;

BB's are done by having different audio frequencies in each ear, not by the light frequency.

Some info on BB: http://www.mindplacesupport.com/foru...read.php?t=238

From the Proteus Session Editor manual: (http://www.mindplacesupport.com/Proteus.htm)

Bin. Beat:
When selected the audio pitch is in the right headphone will be shiftedupwards from the left channel by an amount equal to the LFO #1 value. Example: audio pitch is set to 200 hz and LFO #1 is set to 12.0 hz. The left ear will hear 200 hz and the right ear 212 hz, for a binaural beat frequency of 12.0 hz.

Let us know if that doesn't answer your question.

-Andy.

**jloom** · 10-12-2008, 10:42 AM

Forgive me, I may not have expressed myself correctly.
Your response assumes a single LFO value of 12. My example contains 2 different LFO vaules. What's the Binaural Beat Frequency in the example I gave?

**Andy** · 10-12-2008, 10:57 AM

I'm not sure.
If someone else knows please speak up.

I think that Dual LFO means that the 2 light colours will flash at different frequencies. I don't think that binaural (which means 2 sounds) has anything to do with the lights.

It's not something I do regularily (programming the Proteus), so I'm going to have to leave it to someone more knowledgeable than I to answer this!

Sorry!

-Andy

**jloom** · 10-12-2008, 03:41 PM

Andy, sorry about that, I read the manual again and it says what you posted even with respect to the dual LFOs. It appears that the BB will follow the LFO#1 regardless of the setting on the LFO#2. Your answer was correct.

Accordingly LFO#2 has not impact on the sound.

Thanks for your kindness and patience.
Jerome