Bacch Dsp, True stereo?


The latest gimmick seems to be eliminating cross talk as a way to achieve true stereo.

Seems very expensive and works with any speaker.

Another layer of complexity.

Anyone have an opinion on this new fad? Seems a bit neurotic to me

emergingsoul

Showing 4 responses by hifidream

I built my entire system on the principles of Dr. Edward Choueiri. I read about BACCH when I first started building my system and tried some music processed by the BACCH system and it was amazing using the suggested set up and placement of speakers. I could pick out every instrument in the orchestra in perfect space. I am saving up for it. Full package is about $10K. His work and principles are licensed to the sound bars that do so much with so little. Imagine what a true HiFi rig will sound like. It’s my next purchase and it will be the ultimate game changer. I feel like everything I’ve done has gotten me to this place. This is the real deal. 
 

Thanks,

Steve

@emergingsoul  Crosstalk is the reason we aren’t fooled into believing that we are not in a live environment. Hearing content coming from the right speaker with your right ear is expected and the time it takes to travel across your face to your left ear locates that sound in space. The same thing is happening with the left ear. This is why super directional speakers like horns can create a magical image due to almost eliminating crosstalk but the place that this magic happens is very small and usually only works for one person and perhaps one more directly behind them. I’ve personally experienced this. BACCH does this digitally in real time with audio queues in the music. As @asctim above notes it isn’t a manufacture equipment issue, the only way to address it on that end is with a hyper directional system as I described or a software based solution like BACCH. You also noted people aren’t interested in this, perhaps you missed my post. I literally built my entire system around Dr. Choueiri’s research and this is the last and most exciting piece I want to add to my system. I don’t believe it is a complicated issue, just a difficult one to address which is why Dr. Choueiri has spent so many years working on a solution. 
 

Thanks,

Steve 

There won’t be any challenges to implement it in my system because it is entirely active and it will be plug and play. The only challenge is money, like many things. I did feel it was important to get the room corrected and have the highest level of DSP processing possible before implementing BACCH. Thus my recent purchase of the dspNexus, which is now processing 8 channels with 12 biquad filters at 192K in real time, the results are stunning. The largest impact in sound reproduction is the speakers, next is the room, and I would say crosstalk is third in my list so it will be my next purchase when I can afford it. It’s really quite simple to implement from my discussions with their team. It simply is added between your source and the speakers and works its magic by using head tracking technology. The initial set up includes using microphones put in your ears to measure your unique ears and head and then it’s set up and you don’t need to do anything else. I’m not sure why you perceive that to be difficult. Much less difficult than measuring the room and developing biquads for my DSP in my opinion. 
 

Thanks,

Steve 

@emergingsoul 

If you go to this link you can see all the parts and how it interfaces into your system through pull down menus within the system diagram. 

https://www.theoretica.us/bacch4mac/

@asctim Yes I agree getting the room corrected is key. My current results are fantastic and eerily real but I think it can get even better with BACCH. My decision to use panel speakers is due to Dr. Choueiri’s research, lack of side reflections, highly directional, single wave / line source. I’m sure your set up sounds great!

Thanks,

Steve