diff --git a/lib/defines.h b/lib/defines.h
index 7a6abfdc..f13f27a3 100644
--- a/lib/defines.h
+++ b/lib/defines.h
@@ -99,7 +99,7 @@ static inline void show_stackframe(){}
 #define SHM_DATASIZE 20
 #endif
 
-#define AUDIO_KEY_INTERVAL 5000 ///< This define controls the keyframe interval for non-video tracks, such as audio and metadata tracks.
+#define AUDIO_KEY_INTERVAL 2000 ///< This define controls the keyframe interval for non-video tracks, such as audio and metadata tracks.
 
 #ifndef STATS_DELAY
 #define STATS_DELAY 15
diff --git a/lib/dtsc.h b/lib/dtsc.h
index b3f8afea..4d9b2955 100644
--- a/lib/dtsc.h
+++ b/lib/dtsc.h
@@ -289,7 +289,7 @@ namespace DTSC {
       inline operator bool() const {
         return (parts.size() && keySizes.size() && (keySizes.size() == keys.size()));
       }
-      void update(long long packTime, long long packOffset, long long packDataSize, uint64_t packBytePos, bool isKeyframe, long long packSendSize, unsigned long segment_size = 5000);
+      void update(long long packTime, long long packOffset, long long packDataSize, uint64_t packBytePos, bool isKeyframe, long long packSendSize, unsigned long segment_size = 1900);
       int getSendLen(bool skipDynamic = false);
       void send(Socket::Connection & conn, bool skipDynamic = false);
       void writeTo(char *& p);
@@ -347,10 +347,10 @@ namespace DTSC {
         return vod || live;
       }
       void reinit(const DTSC::Packet & source);
-      void update(const DTSC::Packet & pack, unsigned long segment_size = 5000);
+      void update(const DTSC::Packet & pack, unsigned long segment_size = 1900);
       void updatePosOverride(DTSC::Packet & pack, uint64_t bpos);
-      void update(JSON::Value & pack, unsigned long segment_size = 5000);
-      void update(long long packTime, long long packOffset, long long packTrack, long long packDataSize, uint64_t packBytePos, bool isKeyframe, long long packSendSize = 0, unsigned long segment_size = 5000);
+      void update(JSON::Value & pack, unsigned long segment_size = 1900);
+      void update(long long packTime, long long packOffset, long long packTrack, long long packDataSize, uint64_t packBytePos, bool isKeyframe, long long packSendSize = 0, unsigned long segment_size = 1900);
       unsigned int getSendLen(bool skipDynamic = false, std::set<unsigned long> selectedTracks = std::set<unsigned long>());
       void send(Socket::Connection & conn, bool skipDynamic = false, std::set<unsigned long> selectedTracks = std::set<unsigned long>());
       void writeTo(char * p);