diff --git a/lib/defines.h b/lib/defines.h
index 55ba3a17..462b34fb 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 e24f04ea..d187b58c 100644
--- a/lib/dtsc.h
+++ b/lib/dtsc.h
@@ -310,9 +310,9 @@ namespace DTSC {
         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);
       */
-      void update(long long packTime, long long packOffset, long long packDataSize, uint64_t packBytePos, bool isKeyframe, long long packSendSize, unsigned long segment_size = 5000, const char * iVec = 0);
+      void update(long long packTime, long long packOffset, long long packDataSize, uint64_t packBytePos, bool isKeyframe, long long packSendSize, unsigned long segment_size = 1900, const char * iVec = 0);
       int getSendLen(bool skipDynamic = false);
       void send(Socket::Connection & conn, bool skipDynamic = false);
       void writeTo(char *& p);
@@ -371,13 +371,13 @@ 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(JSON::Value & pack, unsigned long segment_size = 1900);
       /*LTS
-      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(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);
       LTS*/
-      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, const char * iVec = 0);
+      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, const char * iVec = 0);
       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);