diff --git a/connclient.go b/connclient.go
index 7682a376..fe73c81e 100644
--- a/connclient.go
+++ b/connclient.go
@@ -102,11 +102,11 @@ type ConnClient struct {
 
 // NewConnClient allocates a ConnClient. See ConnClientConf for the options.
 func NewConnClient(conf ConnClientConf) (*ConnClient, error) {
-	if conf.ReadTimeout == time.Duration(0) {
+	if conf.ReadTimeout == 0 {
 		conf.ReadTimeout = 10 * time.Second
 	}
-	if conf.WriteTimeout == time.Duration(0) {
-		conf.WriteTimeout = 5 * time.Second
+	if conf.WriteTimeout == 0 {
+		conf.WriteTimeout = 10 * time.Second
 	}
 	if conf.ReadBufferCount == 0 {
 		conf.ReadBufferCount = 1
diff --git a/connserver.go b/connserver.go
index 0117e72b..c1f91834 100644
--- a/connserver.go
+++ b/connserver.go
@@ -46,11 +46,11 @@ type ConnServer struct {
 
 // NewConnServer allocates a ConnServer.
 func NewConnServer(conf ConnServerConf) *ConnServer {
-	if conf.ReadTimeout == time.Duration(0) {
-		conf.ReadTimeout = 5 * time.Second
+	if conf.ReadTimeout == 0 {
+		conf.ReadTimeout = 10 * time.Second
 	}
-	if conf.WriteTimeout == time.Duration(0) {
-		conf.WriteTimeout = 5 * time.Second
+	if conf.WriteTimeout == 0 {
+		conf.WriteTimeout = 10 * time.Second
 	}
 	if conf.ReadBufferCount == 0 {
 		conf.ReadBufferCount = 1
diff --git a/rtpaac/encoder.go b/rtpaac/encoder.go
index ada4848f..c6a6a862 100644
--- a/rtpaac/encoder.go
+++ b/rtpaac/encoder.go
@@ -44,7 +44,7 @@ func NewEncoder(relativeType uint8, config []byte) (*Encoder, error) {
 
 // Write encodes an AAC frame into RTP/AAC packets.
 func (e *Encoder) Write(data []byte, timestamp time.Duration) ([][]byte, error) {
-	if e.started == time.Duration(0) {
+	if e.started == 0 {
 		e.started = timestamp
 	}
 
diff --git a/rtph264/encoder.go b/rtph264/encoder.go
index ccde0718..41eb8215 100644
--- a/rtph264/encoder.go
+++ b/rtph264/encoder.go
@@ -33,7 +33,7 @@ func NewEncoder(relativeType uint8) (*Encoder, error) {
 
 // Write encodes NALUs into RTP/H264 packets.
 func (e *Encoder) Write(nalus [][]byte, timestamp time.Duration) ([][]byte, error) {
-	if e.started == time.Duration(0) {
+	if e.started == 0 {
 		e.started = timestamp
 	}