Anyone tried new TinySine DSP with ADAU1452?

[Mark185]

Well I was hoping to get away with unbalanced in and out, but I'm getting pops on just the tweeter amp when turning on phantom power on my interface. I'll have to do the balanced trick and lose some total ins and outs. When using the programmer, I get mic signal into the tweeter amp even with phantom off and it's a condenser. Some sort of strange bleed happening.

Do you have a DC blocking filter immediately after your analog input in the Sigma Studio schematic? If not, that is first thing you should try. The A/D converter can have a small DC offset that is exacerbated by turn-on of external power supply.

 

[DatSpeakerTho]

Do you have a DC blocking filter immediately after your analog input in the Sigma Studio schematic? If not, that is first thing you should try. The A/D converter can have a small DC offset that is exacerbated by turn-on of external power supply.

I do but it wasn't that, check my post again I edited it. It was all my fault

 

[DatSpeakerTho]

I'm just gonna keep spamming this thread with info on this thing as I use it.

FWIW, and I'm sure someone wants to know, but connected to my A07 and Topping Mini 300, there is effectively zero hiss. It's quieter than 8030c and kh80, significantly so. I am very pleased with this result because my speakers are like 2ft from my head. The hiss is inaudible about 2-3" from the speaker. I am impressed.

 

[Mark185]

Really glad to hear that you don't hear that . I am still playing around on my test bench and have not hooked up to amplifier yet.

 

[DatSpeakerTho]

This is my current routing, might help someone get started. Basic 2 in 4 out 2.5khz LR4 with Para EQ on each channel and delay on the tweeter. Nothing fancy going.

 

[DatSpeakerTho]

Trying to figure out where I can pull power off the board for adding DACs.

 

[Mark185]

If you send email to TinySine and ask, they usually respond within 48 hours. [email protected]

 

[Mark185]

If you are not using the Bluetooth adapter, you can probably get 5 volts off that connector. This is where their lack of a manual makes it more difficult. They have a good document for the 1702 DSP board and I hope they do the same for this board. In the meantime, ask them.