diff --git a/modulation/stereo_encoder.c b/modulation/stereo_encoder.c
index fe2ceb5..c06c883 100644
--- a/modulation/stereo_encoder.c
+++ b/modulation/stereo_encoder.c
@@ -7,8 +7,8 @@ void init_stereo_encoder(StereoEncoder* st, uint8_t stereo_ssb, uint8_t multipli
     st->pilot_volume = pilot_volume;
     st->audio_volume = audio_volume;
     if(stereo_ssb) {
-        init_delay_line(&st->delay_pilot, stereo_ssb*2+1);
-        init_delay_line(&st->delay, stereo_ssb*2+1);
+        init_delay_line(&st->delay_pilot, stereo_ssb*2);
+        init_delay_line(&st->delay, stereo_ssb*2);
         st->stereo_hilbert = firhilbf_create(stereo_ssb, 60);
     } else st->stereo_hilbert = NULL;
 }
diff --git a/src/fm95.c b/src/fm95.c
index e355cad..ea2a7f6 100644
--- a/src/fm95.c
+++ b/src/fm95.c
@@ -456,7 +456,7 @@ void init_runtime(FM95_Runtime* runtime, const FM95_Config config) {
 	}
 
 	if(config.stereo_ssb) {
-		for(int i = 0; i < config.rds_streams; i++) init_delay_line(&runtime->rds_delays[i], config.stereo_ssb*2+1);
+		for(int i = 0; i < config.rds_streams; i++) init_delay_line(&runtime->rds_delays[i], config.stereo_ssb*2);
 	}
 
 	if(config.preemphasis != 0) {