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Downsampling - undeterministic behavior of SS4.7 compiler

SigmaDSP & SigmaStudio MichaelSchwarzAER Nov 11, 2025 00:00 4 replies Original on forum ↗
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MichaelSchwarzAER Question
Nov 11, 2025 00:00

IncompatibleSamplingratesDetected.dspproj

"Incompatible Samplingrates Detected" or "##### Compile succeeded: 0 errrors, 0 warnings #####"

Audio Signal Processors

software

ADAU1467 SigmaStudio SigmaDSP

adau1467

sigma studio 4.7

SigmaDSP Audio Processors

4.7 Build 0 Rev. 1831

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IncompatibleSamplingratesDetected.png
IncompatibleSamplingratesDetected.png
DaveThib Reply
Nov 11, 2025 00:00

Hello Michael,

I downloaded your program and it compiles fine every time. No issues.

Now I have to ask why the heck are you selecting all of the block, deleting them and then pasting them back in? Then I have to ask you what is the "F6" command? "F7" is link/compile/download.

I am also trying to figure out what you are trying to do?

You are multiplying the sample by one if the downsampled sample is not zero. Why?

Dave T

MichaelSchwarzAER Reply
Nov 12, 2025 00:00

You have to repeat the sequence(MarkAll,Cut,Paste,LinkCompile) several(sometimes more than 10) times. Don't type too fast.

The "F6" command corresponds to the scripting function
HResult ProjectLinkCompile(); //Link and compile the active schematic

It's all to demonstrate this behavior of SS4.7. Smallest possible example to demonstrate this.
Please note: multiplying by one if not zero and multiplying by zero if zero is the identity function iff the samplingrates are equal. You know, you can view the samplingrates by hovering over the wires.

DaveThib Reply
Nov 12, 2025 00:00

Hello Michael,

My suggestion is this.

1) Do not do this multiple times in a row. I fail to see why you need to do this?

2) The command for link compile download is F7 not F6

You may be running into an OS issue.

Dave T

pastedimage1762966679016v1.png
pastedimage1762966679016v1.png
MichaelSchwarzAER Reply
Nov 14, 2025 00:00

1)deleting and reinserting blocks often repair a programm (corrupt file?)
2) The "F7" command corresponds to the scripting function
HResult ProjectLinkCompileDownload();//Link, compile and download the active schematic
3)Definitly not an OS issue - tested on Win7/ Win10/ Win11(22621.4317)/ Win11(26100.7171)...

IncompatibleSamplingratesDetected_CompileTimeErr.dspproj

IncompatibleSamplingratesDetectedNoCompileTimeErr.dspproj