I tried all the pitch shifter type (yours, simple,and 180 ) but none is working, also csv output don't work(I read a lot of 1) also simply open the example (arduino-audio-tools/examples/tests/effects/pitch-shift) and don't work, I have a audiokit v1, the first example in audiokit is working (arduino-audio-tools/examples/examples-audiokit/streams-audiokit-audiokit) but I can't add the pitch shift, I don't know if is not working the pitch shift or I'm doing something wrong,
Also arduino-audio-tools/examples/examples-audiokit
/streams-audiokit-ram-ptichshift-audiokit. Don't work, the version without pitch shift work well