diff --git a/spa/plugins/audioconvert/channelmix.c b/spa/plugins/audioconvert/channelmix.c
index f17ab25f9..e8adbff4f 100644
--- a/spa/plugins/audioconvert/channelmix.c
+++ b/spa/plugins/audioconvert/channelmix.c
@@ -744,18 +744,23 @@ static int port_enum_formats(void *object,
 				SPA_FORMAT_mediaSubtype,   SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
 				SPA_FORMAT_AUDIO_format,   SPA_POD_Id(SPA_AUDIO_FORMAT_F32P),
 				0);
+
 			if (other->have_format) {
 				spa_pod_builder_add(builder,
 					SPA_FORMAT_AUDIO_rate, SPA_POD_Int(other->format.info.raw.rate),
+					SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(
+						other->format.info.raw.channels, 1, INT32_MAX),
 					0);
 			} else {
+				uint32_t rate = this->io_position ?
+					this->io_position->clock.rate.denom : DEFAULT_RATE;
+
 				spa_pod_builder_add(builder,
-					SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(DEFAULT_RATE, 1, INT32_MAX),
+					SPA_FORMAT_AUDIO_rate, SPA_POD_CHOICE_RANGE_Int(rate, 0, INT32_MAX),
+					SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(
+						DEFAULT_CHANNELS, 1, INT32_MAX),
 					0);
 			}
-			spa_pod_builder_add(builder,
-				SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(DEFAULT_CHANNELS, 1, INT32_MAX),
-				0);
 			*param = spa_pod_builder_pop(builder, &f);
 		}
 		break;
diff --git a/spa/plugins/audioconvert/fmtconvert.c b/spa/plugins/audioconvert/fmtconvert.c
index f88df36d1..34f23d49d 100644
--- a/spa/plugins/audioconvert/fmtconvert.c
+++ b/spa/plugins/audioconvert/fmtconvert.c
@@ -429,6 +429,7 @@ static int port_enum_formats(void *object,
 			} else {
 				uint32_t rate = this->io_position ?
 					this->io_position->clock.rate.denom : DEFAULT_RATE;
+
 				spa_pod_builder_add(builder,
 					SPA_FORMAT_AUDIO_rate,     SPA_POD_CHOICE_RANGE_Int(
 									rate, 1, INT32_MAX),
diff --git a/spa/plugins/audioconvert/merger.c b/spa/plugins/audioconvert/merger.c
index 8c505313f..286978983 100644
--- a/spa/plugins/audioconvert/merger.c
+++ b/spa/plugins/audioconvert/merger.c
@@ -688,6 +688,9 @@ static int port_enum_formats(void *object,
 				SPA_PARAM_EnumFormat, &port->format.info.raw);
 		}
 		else {
+			uint32_t rate = this->io_position ?
+				this->io_position->clock.rate.denom : DEFAULT_RATE;
+
 			*param = spa_pod_builder_add_object(builder,
 				SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
 				SPA_FORMAT_mediaType,      SPA_POD_Id(SPA_MEDIA_TYPE_audio),
@@ -710,7 +713,7 @@ static int port_enum_formats(void *object,
 							SPA_AUDIO_FORMAT_U8,
 							SPA_AUDIO_FORMAT_U8P),
 				SPA_FORMAT_AUDIO_rate,     SPA_POD_CHOICE_RANGE_Int(
-					DEFAULT_RATE, 1, INT32_MAX),
+					rate, 1, INT32_MAX),
 				SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(
 					DEFAULT_CHANNELS, 1, MAX_PORTS));
 		}
diff --git a/spa/plugins/audioconvert/resample.c b/spa/plugins/audioconvert/resample.c
index ef49d6f47..e300cef60 100644
--- a/spa/plugins/audioconvert/resample.c
+++ b/spa/plugins/audioconvert/resample.c
@@ -404,12 +404,15 @@ static int port_enum_formats(void *object,
 					other->format.info.raw.channels, other->format.info.raw.position);
 			*param = spa_pod_builder_pop(builder, &f);
 		} else {
+			uint32_t rate = this->io_position ?
+				this->io_position->clock.rate.denom : DEFAULT_RATE;
+
 			*param = spa_pod_builder_add_object(builder,
 				SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
 				SPA_FORMAT_mediaType,      SPA_POD_Id(SPA_MEDIA_TYPE_audio),
 				SPA_FORMAT_mediaSubtype,   SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
 				SPA_FORMAT_AUDIO_format,   SPA_POD_Id(SPA_AUDIO_FORMAT_F32P),
-				SPA_FORMAT_AUDIO_rate,     SPA_POD_CHOICE_RANGE_Int(DEFAULT_RATE, 1, INT32_MAX),
+				SPA_FORMAT_AUDIO_rate,     SPA_POD_CHOICE_RANGE_Int(rate, 1, INT32_MAX),
 				SPA_FORMAT_AUDIO_channels, SPA_POD_CHOICE_RANGE_Int(DEFAULT_CHANNELS, 1, INT32_MAX));
 		}
 		break;