diff --git a/spa/plugins/audioconvert/audioadapter.c b/spa/plugins/audioconvert/audioadapter.c
index c4136a161..940b3284e 100644
--- a/spa/plugins/audioconvert/audioadapter.c
+++ b/spa/plugins/audioconvert/audioadapter.c
@@ -291,6 +291,30 @@ static int impl_node_send_command(void *object, const struct spa_command *comman
 	return res;
 }
 
+static void convert_node_info(void *data, const struct spa_node_info *info)
+{
+	struct impl *this = data;
+	uint32_t i;
+
+	for (i = 0; i < info->n_params; i++) {
+		uint32_t idx = SPA_ID_INVALID;
+
+		switch (info->params[i].id) {
+		case SPA_PARAM_PropInfo:
+			idx = 1;
+			break;
+		case SPA_PARAM_Props:
+			idx = 2;
+			break;
+		}
+		if (idx != SPA_ID_INVALID) {
+			this->params[idx] = info->params[i];
+			this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+		}
+	}
+	emit_node_info(this, false);
+}
+
 static void convert_port_info(void *data,
 		enum spa_direction direction, uint32_t port_id,
 		const struct spa_port_info *info)
@@ -319,6 +343,7 @@ static void convert_result(void *data, int seq, int res, uint32_t type, const vo
 
 static const struct spa_node_events convert_node_events = {
 	SPA_VERSION_NODE_EVENTS,
+	.info = convert_node_info,
 	.port_info = convert_port_info,
 	.result = convert_result,
 };
@@ -333,6 +358,9 @@ static void slave_info(void *data, const struct spa_node_info *info)
         else
 		this->direction = SPA_DIRECTION_OUTPUT;
 
+	this->info.max_input_ports = this->direction == SPA_DIRECTION_INPUT ? 128 : 0;
+	this->info.max_output_ports = this->direction == SPA_DIRECTION_OUTPUT ? 128 : 0;
+
 	spa_log_debug(this->log, NAME" %p: slave info %s", this,
 			this->direction == SPA_DIRECTION_INPUT ?
 				"Input" : "Output");
@@ -343,9 +371,33 @@ static void slave_info(void *data, const struct spa_node_info *info)
 	}
 }
 
+static void slave_port_info(void *data,
+		enum spa_direction direction, uint32_t port_id,
+		const struct spa_port_info *info)
+{
+	struct impl *this = data;
+	uint32_t i;
+
+	for (i = 0; i < info->n_params; i++) {
+		uint32_t idx = SPA_ID_INVALID;
+
+		switch (info->params[i].id) {
+		case SPA_PARAM_Format:
+			idx = 3;
+			break;
+		}
+		if (idx != SPA_ID_INVALID) {
+			this->params[idx] = info->params[i];
+			this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+		}
+	}
+	emit_node_info(this, false);
+}
+
 static const struct spa_node_events slave_node_events = {
 	SPA_VERSION_NODE_EVENTS,
 	.info = slave_info,
+	.port_info = slave_port_info,
 };
 
 static int slave_ready(void *data, int status)
@@ -354,6 +406,8 @@ static int slave_ready(void *data, int status)
 
 	spa_log_trace(this->log, NAME " %p: ready %d", this, status);
 
+	this->master = true;
+
 	if (this->direction == SPA_DIRECTION_OUTPUT)
 		status = spa_node_process(this->convert);
 
@@ -766,8 +820,8 @@ static int impl_node_process(void *object)
 	struct impl *this = object;
 	int status;
 
-	spa_log_trace_fp(this->log, "%p: process convert:%u",
-			this, this->use_converter);
+	spa_log_trace_fp(this->log, "%p: process convert:%u master:%d",
+			this, this->use_converter, this->master);
 
 	if (this->direction == SPA_DIRECTION_INPUT) {
 		if (this->use_converter)
@@ -779,6 +833,7 @@ static int impl_node_process(void *object)
 	if (this->direction == SPA_DIRECTION_OUTPUT && !this->master) {
 		if (this->use_converter)
 			status = spa_node_process(this->convert);
+		this->master = false;
 	}
 	return status;
 }
@@ -901,15 +956,12 @@ impl_init(const struct spa_handle_factory *factory,
 	if (this->slave == NULL)
 		return -EINVAL;
 
-	spa_node_add_listener(this->slave,
-			&this->slave_listener, &slave_node_events, this);
-	spa_node_set_callbacks(this->slave, &slave_node_callbacks, this);
+	spa_hook_list_init(&this->hooks);
 
 	this->node.iface = SPA_INTERFACE_INIT(
 			SPA_TYPE_INTERFACE_Node,
 			SPA_VERSION_NODE,
 			&impl_node, this);
-	spa_hook_list_init(&this->hooks);
 
 	this->hnd_convert = SPA_MEMBER(this, sizeof(struct impl), struct spa_handle);
 	spa_handle_factory_init(&spa_audioconvert_factory,
@@ -919,18 +971,9 @@ impl_init(const struct spa_handle_factory *factory,
 	spa_handle_get_interface(this->hnd_convert, SPA_TYPE_INTERFACE_Node, &iface);
 	this->convert = iface;
 	this->target = this->convert;
-	spa_node_add_listener(this->convert,
-			&this->convert_listener, &convert_node_events, this);
-	this->use_converter = true;
-
-	configure_adapt(this);
-
-	link_io(this);
 
 	this->info_all = SPA_NODE_CHANGE_MASK_PARAMS;
 	this->info = SPA_NODE_INFO_INIT();
-	this->info.max_input_ports = this->direction == SPA_DIRECTION_INPUT ? 128 : 0;
-	this->info.max_output_ports = this->direction == SPA_DIRECTION_OUTPUT ? 128 : 0;
 	this->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
 	this->params[1] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
 	this->params[2] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
@@ -939,6 +982,18 @@ impl_init(const struct spa_handle_factory *factory,
 	this->info.params = this->params;
 	this->info.n_params = 5;
 
+	spa_node_add_listener(this->slave,
+			&this->slave_listener, &slave_node_events, this);
+	spa_node_set_callbacks(this->slave, &slave_node_callbacks, this);
+
+	spa_node_add_listener(this->convert,
+			&this->convert_listener, &convert_node_events, this);
+	this->use_converter = true;
+
+	configure_adapt(this);
+
+	link_io(this);
+
 	return 0;
 }
 
diff --git a/spa/plugins/audioconvert/audioconvert.c b/spa/plugins/audioconvert/audioconvert.c
index ea2a4164d..2be32592c 100644
--- a/spa/plugins/audioconvert/audioconvert.c
+++ b/spa/plugins/audioconvert/audioconvert.c
@@ -552,7 +552,37 @@ static struct spa_node_events fmt_output_events = {
 	.result = on_node_result,
 };
 
-static struct spa_node_events node_events = {
+static void on_channelmix_info(void *data, const struct spa_node_info *info)
+{
+	struct impl *this = data;
+	uint32_t i;
+
+	for (i = 0; i < info->n_params; i++) {
+		uint32_t idx = SPA_ID_INVALID;
+
+		switch (info->params[i].id) {
+		case SPA_PARAM_PropInfo:
+			idx = 2;
+			break;
+		case SPA_PARAM_Props:
+			idx = 3;
+			break;
+		}
+		if (idx != SPA_ID_INVALID) {
+			this->params[idx] = info->params[i];
+			this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+		}
+	}
+	emit_node_info(this, false);
+}
+
+static struct spa_node_events channelmix_events = {
+	SPA_VERSION_NODE_EVENTS,
+	.info = on_channelmix_info,
+	.result = on_node_result,
+};
+
+static struct spa_node_events resample_events = {
 	SPA_VERSION_NODE_EVENTS,
 	.result = on_node_result,
 };
@@ -774,9 +804,9 @@ impl_node_add_listener(void *object,
 	spa_node_add_listener(this->fmt[SPA_DIRECTION_INPUT],
 			&l[0], &fmt_input_events, this);
 	spa_node_add_listener(this->channelmix,
-			&l[1], &node_events, this);
+			&l[1], &channelmix_events, this);
 	spa_node_add_listener(this->resample,
-			&l[2], &node_events, this);
+			&l[2], &resample_events, this);
 	spa_node_add_listener(this->fmt[SPA_DIRECTION_OUTPUT],
 			&l[3], &fmt_output_events, this);
 
@@ -1229,9 +1259,9 @@ impl_init(const struct spa_handle_factory *factory,
 	reconfigure_mode(this, SPA_PARAM_PORT_CONFIG_MODE_convert, SPA_DIRECTION_INPUT, false, NULL);
 
 	spa_node_add_listener(this->channelmix,
-			&this->listener[0], &node_events, this);
+			&this->listener[0], &channelmix_events, this);
 	spa_node_add_listener(this->resample,
-			&this->listener[1], &node_events, this);
+			&this->listener[1], &resample_events, this);
 
 	return 0;
 }
diff --git a/spa/plugins/audioconvert/channelmix.c b/spa/plugins/audioconvert/channelmix.c
index e38fd67f3..1c1bf69ad 100644
--- a/spa/plugins/audioconvert/channelmix.c
+++ b/spa/plugins/audioconvert/channelmix.c
@@ -130,6 +130,23 @@ struct impl {
 #define _MASK(ch)	(1ULL << SPA_AUDIO_CHANNEL_ ## ch)
 #define STEREO	(_MASK(FL)|_MASK(FR))
 
+static void emit_info(struct impl *this, bool full)
+{
+	if (full)
+		this->info.change_mask = this->info_all;
+	if (this->info.change_mask) {
+		spa_node_emit_info(&this->hooks, &this->info);
+		this->info.change_mask = 0;
+	}
+}
+
+static void emit_params_changed(struct impl *this)
+{
+	this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+	this->params[1].flags ^= SPA_PARAM_INFO_SERIAL;
+	emit_info(this, false);
+}
+
 static uint64_t default_mask(uint32_t channels)
 {
 	uint64_t mask = 0;
@@ -334,16 +351,6 @@ static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
 	return -ENOTSUP;
 }
 
-static void emit_info(struct impl *this, bool full)
-{
-	if (full)
-		this->info.change_mask = this->info_all;
-	if (this->info.change_mask) {
-		spa_node_emit_info(&this->hooks, &this->info);
-		this->info.change_mask = 0;
-	}
-}
-
 static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
 			       const struct spa_pod *param)
 {
@@ -353,11 +360,8 @@ static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
 
 	switch (id) {
 	case SPA_PARAM_Props:
-		if (apply_props(this, param) > 0) {
-			this->info.change_mask = SPA_NODE_CHANGE_MASK_PARAMS;
-			this->params[1].flags ^= SPA_PARAM_INFO_SERIAL;
-			emit_info(this, false);
-		}
+		if (apply_props(this, param) > 0)
+			emit_params_changed(this);
 		break;
 	default:
 		return -ENOENT;
diff --git a/src/pipewire/device.c b/src/pipewire/device.c
index 42072a0f5..cf4aa445d 100644
--- a/src/pipewire/device.c
+++ b/src/pipewire/device.c
@@ -370,7 +370,12 @@ int pw_device_register(struct pw_device *device,
 	if (properties == NULL)
 		return -errno;
 
-	pw_properties_set(properties, PW_KEY_DEVICE_NAME, device->info.name);
+	if ((str = pw_properties_get(device->properties, PW_KEY_DEVICE_DESCRIPTION)) != NULL)
+		pw_properties_set(properties, PW_KEY_DEVICE_DESCRIPTION, str);
+	if ((str = pw_properties_get(device->properties, PW_KEY_DEVICE_NAME)) != NULL)
+		pw_properties_set(properties, PW_KEY_DEVICE_NAME, str);
+	if ((str = pw_properties_get(device->properties, PW_KEY_DEVICE_NICK)) != NULL)
+		pw_properties_set(properties, PW_KEY_DEVICE_NICK, str);
 	if ((str = pw_properties_get(device->properties, PW_KEY_MEDIA_CLASS)) != NULL)
 		pw_properties_set(properties, PW_KEY_MEDIA_CLASS, str);
 
@@ -445,6 +450,7 @@ static int update_properties(struct pw_device *device, const struct spa_dict *di
 
 	device->info.props = &device->properties->dict;
 	device->info.change_mask |= PW_DEVICE_CHANGE_MASK_PROPS;
+
 	return changed;
 }
 
diff --git a/src/pipewire/keys.h b/src/pipewire/keys.h
index 07087f26a..818261d18 100644
--- a/src/pipewire/keys.h
+++ b/src/pipewire/keys.h
@@ -104,6 +104,9 @@ extern "C" {
 /** Node keys */
 #define PW_KEY_NODE_ID			"node.id"		/**< node id */
 #define PW_KEY_NODE_NAME		"node.name"		/**< node name */
+#define PW_KEY_NODE_NICK		"node.nick"		/**< short node name */
+#define PW_KEY_NODE_DESCRIPTION		"node.description"	/**< localized human readable node one-line
+								  *  description. Ex. "Foobar USB Headset" */
 #define PW_KEY_NODE_PLUGGED		"node.plugged"		/**< when the node was created. As a uint64 in
 								  *  nanoseconds. */
 #define PW_KEY_NODE_SESSION		"node.session"		/**< the session id this node is part of */
@@ -140,6 +143,7 @@ extern "C" {
 								  *  does not cause the graph to be
 								  *  runnable. */
 /** device properties */
+#define PW_KEY_DEVICE_ID		"device.id"		/**< device id */
 #define PW_KEY_DEVICE_NAME		"device.name"		/**< device name */
 #define PW_KEY_DEVICE_PLUGGED		"device.plugged"	/**< when the device was created. As a uint64 in
 								  *  nanoseconds. */
diff --git a/src/pipewire/node.c b/src/pipewire/node.c
index be65ff3e1..6b12abb51 100644
--- a/src/pipewire/node.c
+++ b/src/pipewire/node.c
@@ -721,7 +721,6 @@ static void check_properties(struct pw_node *node)
 		node->quantum_size = DEFAULT_QUANTUM;
 
 	pw_log_debug(NAME" %p: driver:%d", node, node->driver);
-
 }
 
 static void dump_states(struct pw_node *driver)
diff --git a/src/pipewire/port.c b/src/pipewire/port.c
index 56a2ce5d6..a28b2db04 100644
--- a/src/pipewire/port.c
+++ b/src/pipewire/port.c
@@ -680,9 +680,11 @@ int pw_port_register(struct pw_port *port,
 		     struct pw_properties *properties)
 {
 	struct pw_node *node = port->node;
-	struct pw_core *core = node->core;
 
-	port->global = pw_global_new(core,
+	if (node == NULL)
+		return -EIO;
+
+	port->global = pw_global_new(node->core,
 				PW_TYPE_INTERFACE_Port,
 				PW_VERSION_PORT_PROXY,
 				properties,