diff --git a/lib/include/rtbuf/signal.h b/lib/include/rtbuf/signal.h
index 08ce473..784cb3a 100644
--- a/lib/include/rtbuf/signal.h
+++ b/lib/include/rtbuf/signal.h
@@ -23,7 +23,7 @@ typedef double t_rtbuf_signal_sample;
#define RTBUF_SIGNAL_SAMPLE_SIZE sizeof(t_rtbuf_signal_sample)
#define RTBUF_SIGNAL_SAMPLE_TYPE "double"
-#define RTBUF_SIGNAL_SAMPLES 1024
+#define RTBUF_SIGNAL_SAMPLES 256
#define RTBUF_SIGNAL_SAMPLERATE 48000
#define RTBUF_SIGNAL_DT \
((double) RTBUF_SIGNAL_SAMPLES / RTBUF_SIGNAL_SAMPLERATE)