From df870d193c3ca6552ae85307abbb9f998228a776 Mon Sep 17 00:00:00 2001 From: Jon Nordby Date: Fri, 18 Apr 2025 01:58:15 +0200 Subject: tools: Fixup PDM reference conversion Seems to agree pretty well with itself now PDM bitstream also looks plausible for a sinewave --- tools/testsignal.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/testsignal.py') diff --git a/tools/testsignal.py b/tools/testsignal.py index fb8c599..17bbacd 100644 --- a/tools/testsignal.py +++ b/tools/testsignal.py @@ -31,7 +31,7 @@ if __name__ == "__main__": sample_rate = 16000 - signal = generate_test_tone(sample_rate=sample_rate, freqs=[1000.0], noise_level=0.0) + signal = generate_test_tone(sample_rate=sample_rate, freqs=[1000.0, 440.0], noise_level=0.01) sf.write(filename, signal, sample_rate) print(f"Saved test tone to '{filename}'.") -- cgit v1.2.3