diff --git a/pkg/formats/mpeg4_audio_generic.go b/pkg/formats/mpeg4_audio_generic.go
index 74be3d23..41c0e48d 100644
--- a/pkg/formats/mpeg4_audio_generic.go
+++ b/pkg/formats/mpeg4_audio_generic.go
@@ -100,7 +100,8 @@ func (f *MPEG4AudioGeneric) unmarshal(
 
 // String implements Format.
 func (f *MPEG4AudioGeneric) String() string {
-	return "MPEG4-audio-gen"
+	// currently, String() returns the codec name, hence hide the format name.
+	return "MPEG4-audio"
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg4_audio_generic_test.go b/pkg/formats/mpeg4_audio_generic_test.go
index 5737d4b9..f3685668 100644
--- a/pkg/formats/mpeg4_audio_generic_test.go
+++ b/pkg/formats/mpeg4_audio_generic_test.go
@@ -21,7 +21,7 @@ func TestMPEG4AudioGenericAttributes(t *testing.T) {
 		IndexLength:      3,
 		IndexDeltaLength: 3,
 	}
-	require.Equal(t, "MPEG4-audio-gen", format.String())
+	require.Equal(t, "MPEG4-audio", format.String())
 	require.Equal(t, 48000, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }
diff --git a/pkg/formats/mpeg4_audio_latm.go b/pkg/formats/mpeg4_audio_latm.go
index ad070ce0..742f11a8 100644
--- a/pkg/formats/mpeg4_audio_latm.go
+++ b/pkg/formats/mpeg4_audio_latm.go
@@ -87,7 +87,8 @@ func (f *MPEG4AudioLATM) unmarshal(
 
 // String implements Format.
 func (f *MPEG4AudioLATM) String() string {
-	return "MPEG4-audio-latm"
+	// currently, String() returns the codec name, hence hide the format name.
+	return "MPEG4-audio"
 }
 
 // ClockRate implements Format.
diff --git a/pkg/formats/mpeg4_audio_latm_test.go b/pkg/formats/mpeg4_audio_latm_test.go
index be1c4ac3..879cda95 100644
--- a/pkg/formats/mpeg4_audio_latm_test.go
+++ b/pkg/formats/mpeg4_audio_latm_test.go
@@ -25,7 +25,7 @@ func TestMPEG4AudioLATMAttributes(t *testing.T) {
 			}},
 		},
 	}
-	require.Equal(t, "MPEG4-audio-latm", format.String())
+	require.Equal(t, "MPEG4-audio", format.String())
 	require.Equal(t, 44100, format.ClockRate())
 	require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
 }