diff --git a/spa/plugins/alsa/alsa-pcm.h b/spa/plugins/alsa/alsa-pcm.h
index c3cfe0e..fa75809 100644
--- a/spa/plugins/alsa/alsa-pcm.h
+++ b/spa/plugins/alsa/alsa-pcm.h
@@ -66,7 +66,7 @@ struct buffer {
 #define BW_MAX		0.128
 #define BW_MED		0.064
 #define BW_MIN		0.016
-#define BW_PERIOD	(3 * SPA_NSEC_PER_SEC)
+#define BW_PERIOD	(4 * SPA_NSEC_PER_SEC)
 
 struct channel_map {
 	uint32_t channels;