I agree - and the most amazing things is that thanks to Troy's generosity it's all open source! We've already seen one person modifying the software to meet their needs, so I'm sure if Weeb_Labs ever decide to step back from development and maintenance, the project will still live on in other forks.
I agree, I bought a an AVR years ago as preamp just for bass management, 20kg lump for a sub out.
Just realised that a) It's pretty simple and b) unless you like single-speaker mono the imaging would probably be a bit wobbly due to clock jitter, processing time and PLL wandering. I think?
This really depends upon a few different variables. I believe the best case scenario here would be an ESP32-C5 operating as the USB-I2S bridge and master, feeding your desired number of Picos as slaves. The Pico's processing is deterministic, so it would simply take I2S input from the ESP and output data on its clock edges. This should result in phase locked output across multiple Picos.Just realised that a) It's pretty simple and b) unless you like single-speaker mono the imaging would probably be a bit wobbly due to clock jitter, processing time and PLL wandering. I think?
If you have two Pico's receiving the same SPDIF signal, what would the maximum relative drift be (is it jitter?) between the I2S output of each Pico? Can someone with a bigger brain do the math? There are a lot of variables and I have no idea what the audible threshold of "wobbly imagness" is agreed to be....
It was specifically with relation to embedding the volume level into the user bits of SPDIF and sending one feed to each one of a pair of active speakers. So one DSPi/DSP32 transmitting two SPDIF signals with a DSPi on the end of each feed. Basically so you can run one cable per speaker, plus local mains, and have volume control over both speakers without losing bit-depth for the downstream DSPi filters. I know, it's a bit niche!
I need this now!
.IR remote control is on the roadmap, along with many other external control types. It will be possible to learn any remote control code and assign it to any parameter.What an amazing project is this!
Question; would it be possible to add RC5 remote control, at least for the subwoofer output? I know the problem is that RC5 is not really standardized so it should be programmable which buttons on the RC you use. Or is this to far out of scope for the project?
I'd like to use it for my old (1992 or so!) Philips digital speakers DSS930, adding a subwoofer.
Me setting up a demo last Saturday April 11 in 's-Hertogenbosch, the Netherlands, where I used external processors to set up a proof of concept for it. With SPDIF in I can replace most of it by DSPi
I ordered 3 of them a few days ago due Monday.... amusingly I noticed checking my order they were now out of stock. Maybe all of us DSPi users bought them out.
Could you confirm that you are running the latest v1.1.3-beta4 firmware?
Could this ESP32-C5 handle 16 audio channels in and 16 out simultaneously? This is what I need to grab my AVRs I2S data and pipe it to CDSP.
on paper yes, but with limitations, probably severe, on bit depth and frequency. The documentation is not very clear (to me) and i have not seen anyone reporting sucess with such channel count. @jmf11 has been playing with the P4, maybe he has experimented with how far it can go.
