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-rw-r--r--src/audio/fft.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/src/audio/fft.h b/src/audio/fft.h
index 6a54742..df37ad5 100644
--- a/src/audio/fft.h
+++ b/src/audio/fft.h
@@ -8,9 +8,6 @@
#include <cstddef>
-// Bit-reversal permutation (in-place). Exposed for testing.
-void bit_reverse_permute(float* real, float* imag, size_t N);
-
// Forward FFT: Time domain → Frequency domain
// Input: real[] (length N), imag[] (length N, can be zeros)
// Output: real[] and imag[] contain complex frequency bins