diff --git a/modules/meson.build b/modules/meson.build
index a5129cce..328c4d0e 100644
--- a/modules/meson.build
+++ b/modules/meson.build
@@ -115,6 +115,18 @@ shared_library(
   dependencies : [wp_dep, pipewire_dep],
 )
 
+shared_library(
+  'wireplumber-module-si-convert',
+  [
+    'module-si-convert.c',
+    'module-pipewire/algorithms.c',
+  ],
+  c_args : [common_c_args, '-DG_LOG_DOMAIN="m-si-convert"'],
+  install : true,
+  install_dir : wireplumber_module_dir,
+  dependencies : [wp_dep, pipewire_dep],
+)
+
 shared_library(
   'wireplumber-module-si-simple-node-endpoint',
   [
diff --git a/modules/module-si-convert.c b/modules/module-si-convert.c
new file mode 100644
index 00000000..11b3b767
--- /dev/null
+++ b/modules/module-si-convert.c
@@ -0,0 +1,476 @@
+/* WirePlumber
+ *
+ * Copyright © 2020 Collabora Ltd.
+ *    @author Julian Bouzas <julian.bouzas@collabora.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <wp/wp.h>
+#include <pipewire/pipewire.h>
+#include <pipewire/extensions/session-manager.h>
+
+#include <spa/pod/builder.h>
+#include <spa/param/format-utils.h>
+#include <spa/param/audio/raw.h>
+#include <spa/param/audio/format-utils.h>
+#include <spa/param/audio/type-info.h>
+#include <spa/param/props.h>
+
+#include "module-pipewire/algorithms.h"
+
+enum {
+  STEP_VERIFY_CONFIG = WP_TRANSITION_STEP_CUSTOM_START,
+  STEP_CHOOSE_FORMAT,
+  STEP_CONFIGURE_PORTS
+};
+
+struct _WpSiConvert
+{
+  WpSessionItem parent;
+
+  /* configuration */
+  WpNode *node;
+  WpSessionItem *target;
+  gchar name[96];
+  gboolean control_port;
+  WpDirection direction;
+  struct spa_audio_info_raw format;
+
+  GPtrArray *links;
+};
+
+static void si_convert_stream_init (WpSiStreamInterface * iface);
+static void si_convert_port_info_init (WpSiPortInfoInterface * iface);
+
+G_DECLARE_FINAL_TYPE(WpSiConvert, si_convert, WP, SI_CONVERT, WpSessionItem)
+G_DEFINE_TYPE_WITH_CODE (WpSiConvert, si_convert, WP_TYPE_SESSION_ITEM,
+    G_IMPLEMENT_INTERFACE (WP_TYPE_SI_STREAM, si_convert_stream_init)
+    G_IMPLEMENT_INTERFACE (WP_TYPE_SI_PORT_INFO, si_convert_port_info_init))
+
+static void
+si_convert_init (WpSiConvert * self)
+{
+  self->links = g_ptr_array_new_with_free_func (g_object_unref);
+}
+
+static void
+si_convert_reset (WpSessionItem * item)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+
+  /* unexport & deactivate first */
+  WP_SESSION_ITEM_CLASS (si_convert_parent_class)->reset (item);
+
+  g_clear_object (&self->node);
+  g_clear_object (&self->target);
+  self->name[0] = '\0';
+  self->control_port = FALSE;
+  self->direction = WP_DIRECTION_INPUT;
+  g_ptr_array_set_size (self->links, 0);
+
+  wp_session_item_clear_flag (item, WP_SI_FLAG_CONFIGURED);
+}
+
+static gpointer
+si_convert_get_associated_proxy (WpSessionItem * item, GType proxy_type)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+
+  if (proxy_type == WP_TYPE_NODE)
+    return self->node ? g_object_ref (self->node) : NULL;
+
+  return WP_SESSION_ITEM_CLASS (si_convert_parent_class)->get_associated_proxy (
+      item, proxy_type);
+}
+
+static gboolean
+si_convert_configure (WpSessionItem * item, GVariant * args)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+  guint64 node_i;
+  guint64 target_i;
+  const gchar *tmp_str;
+
+  if (wp_session_item_get_flags (item) & (WP_SI_FLAG_ACTIVATING | WP_SI_FLAG_ACTIVE))
+    return FALSE;
+
+  /* reset previous config */
+  si_convert_reset (WP_SESSION_ITEM (self));
+
+  if (!g_variant_lookup (args, "node", "t", &node_i))
+    return FALSE;
+  g_return_val_if_fail (WP_IS_NODE (GUINT_TO_POINTER (node_i)), FALSE);
+  self->node = g_object_ref (GUINT_TO_POINTER (node_i));
+
+  if (!g_variant_lookup (args, "target", "t", &target_i))
+    return FALSE;
+  g_return_val_if_fail (WP_IS_SESSION_ITEM (GUINT_TO_POINTER (target_i)), FALSE);
+  self->target = g_object_ref (GUINT_TO_POINTER (target_i));
+
+  if (g_variant_lookup (args, "name", "&s", &tmp_str))
+    strncpy (self->name, tmp_str, sizeof (self->name) - 1);
+
+  g_variant_lookup (args, "direction", "y", &self->direction);
+  g_variant_lookup (args, "enable-control-port", "b", &self->control_port);
+
+  return TRUE;
+}
+
+static GVariant *
+si_convert_get_configuration (WpSessionItem * item)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+  GVariantBuilder b;
+
+  /* Set the properties */
+  g_variant_builder_init (&b, G_VARIANT_TYPE_VARDICT);
+  g_variant_builder_add (&b, "{sv}",
+      "node", g_variant_new_uint64 ((guint64) self->node));
+  g_variant_builder_add (&b, "{sv}",
+      "target", g_variant_new_uint64 ((guint64) self->target));
+  g_variant_builder_add (&b, "{sv}",
+      "name", g_variant_new_string (self->name));
+  g_variant_builder_add (&b, "{sv}",
+      "enable-control-port", g_variant_new_boolean (self->control_port));
+  g_variant_builder_add (&b, "{sv}",
+      "direction", g_variant_new_byte (self->direction));
+  g_variant_builder_add (&b, "{sv}",
+      "channels", g_variant_new_uint32 (self->format.channels));
+  return g_variant_builder_end (&b);
+}
+
+static guint
+si_convert_activate_get_next_step (WpSessionItem * item,
+    WpTransition * transition, guint step)
+{
+  switch (step) {
+    case WP_TRANSITION_STEP_NONE:
+      return STEP_VERIFY_CONFIG;
+
+    case STEP_VERIFY_CONFIG:
+    case STEP_CHOOSE_FORMAT:
+      return step + 1;
+
+    case STEP_CONFIGURE_PORTS:
+      return WP_TRANSITION_STEP_NONE;
+
+    default:
+      return WP_TRANSITION_STEP_ERROR;
+  }
+}
+
+static void
+on_ports_configuration_done (WpCore * core, GAsyncResult * res,
+    WpTransition * transition)
+{
+  g_autoptr (GError) error = NULL;
+  if (!wp_core_sync_finish (core, res, &error)) {
+    wp_transition_return_error (transition, g_steal_pointer (&error));
+    return;
+  }
+
+  wp_transition_advance (transition);
+}
+
+static WpSpaPod *
+format_audio_raw_build (const struct spa_audio_info_raw *info)
+{
+  g_autoptr (WpSpaPodBuilder) builder = wp_spa_pod_builder_new_object (
+      "Format", "Format");
+  wp_spa_pod_builder_add (builder,
+      "mediaType",    "I", SPA_MEDIA_TYPE_audio,
+      "mediaSubtype", "I", SPA_MEDIA_SUBTYPE_raw,
+      "format",       "I", info->format,
+      "rate",         "i", info->rate,
+      "channels",     "i", info->channels,
+      NULL);
+
+   if (!SPA_FLAG_IS_SET (info->flags, SPA_AUDIO_FLAG_UNPOSITIONED)) {
+     /* Build the position array spa pod */
+     g_autoptr (WpSpaPodBuilder) position_builder = wp_spa_pod_builder_new_array ();
+     for (guint i = 0; i < info->channels; i++)
+       wp_spa_pod_builder_add_id (position_builder, info->position[i]);
+
+     /* Add the position property */
+     wp_spa_pod_builder_add_property (builder, "position");
+     g_autoptr (WpSpaPod) position = wp_spa_pod_builder_end (position_builder);
+     wp_spa_pod_builder_add_pod (builder, position);
+   }
+
+   return wp_spa_pod_builder_end (builder);
+}
+
+static void
+on_link_activated (WpSessionItem * item, GAsyncResult * res, WpSiConvert * self)
+{
+  g_autoptr (GError) error = NULL;
+  gboolean activate_ret = wp_session_item_activate_finish (item, res, &error);
+  g_return_if_fail (error);
+  g_return_if_fail (activate_ret);
+}
+
+static void
+on_convert_running (WpSiConvert *self)
+{
+  g_autoptr (WpCore) core = wp_proxy_get_core (WP_PROXY (self->node));
+  g_autoptr (WpSessionItem) link = wp_session_item_make (core,
+      "si-standard-link");
+  g_auto (GVariantBuilder) b = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE_VARDICT);
+
+  if (self->direction == WP_DIRECTION_INPUT) {
+      g_variant_builder_add (&b, "{sv}", "out-stream",
+          g_variant_new_uint64 ((guint64) WP_SI_STREAM (self->target)));
+      g_variant_builder_add (&b, "{sv}", "in-streams",
+          g_variant_new_uint64 ((guint64) WP_SI_STREAM (self)));
+  } else {
+      g_variant_builder_add (&b, "{sv}", "out-stream",
+          g_variant_new_uint64 ((guint64) WP_SI_STREAM (self)));
+      g_variant_builder_add (&b, "{sv}", "in-streams",
+          g_variant_new_uint64 ((guint64) WP_SI_STREAM (self->target)));
+  }
+
+  wp_session_item_configure (link, g_variant_builder_end (&b));
+  wp_session_item_activate (link, (GAsyncReadyCallback) on_link_activated, self);
+  g_ptr_array_add (self->links, g_steal_pointer (&self->links));
+}
+
+static void
+on_node_state_changed (WpNode * node, WpNodeState old, WpNodeState curr,
+    WpSiConvert * self)
+{
+  switch (curr) {
+  case WP_NODE_STATE_IDLE:
+    g_ptr_array_set_size (self->links, 0);
+    break;
+  case WP_NODE_STATE_RUNNING:
+    on_convert_running (self);
+    break;
+  case WP_NODE_STATE_SUSPENDED:
+  case WP_NODE_STATE_CREATING:
+  case WP_NODE_STATE_ERROR:
+  default:
+    break;
+  }
+}
+
+static void
+si_convert_activate_execute_step (WpSessionItem * item,
+    WpTransition * transition, guint step)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+
+  switch (step) {
+    case STEP_VERIFY_CONFIG:
+      if (!self->node) {
+        wp_transition_return_error (transition,
+            g_error_new (WP_DOMAIN_LIBRARY, WP_LIBRARY_ERROR_INVARIANT,
+                "si-convert: node was not set on the configuration"));
+      }
+      if (!self->target) {
+        wp_transition_return_error (transition,
+            g_error_new (WP_DOMAIN_LIBRARY, WP_LIBRARY_ERROR_INVARIANT,
+                "si-convert: target was not set on the configuration"));
+      }
+      wp_transition_advance (transition);
+      break;
+
+    case STEP_CHOOSE_FORMAT: {
+      /* get the channels from the target */
+      guint32 channels = 2;
+      g_autoptr (GVariant) v = wp_session_item_get_configuration (self->target);
+      g_return_if_fail (v);
+      g_assert_true (g_variant_lookup (v, "channels", "u", &channels));
+      /* set the format with target channels */
+      self->format.format = SPA_AUDIO_FORMAT_F32P;
+      self->format.rate = 48000;
+      self->format.channels = channels;
+      wp_transition_advance (transition);
+      break;
+    }
+
+    case STEP_CONFIGURE_PORTS: {
+      g_autoptr (WpSpaPod) format = NULL;
+      g_autoptr (WpSpaPod) pod = NULL;
+
+      /* set the chosen device/client format on the node */
+      format = format_audio_raw_build (&self->format);
+
+      /* Configure audioconvert to be both merger and splitter; this means it
+         will have an equal number of input and output ports and just
+         passthrough the same format, but with altered volume.
+         In the future we need to consider writing a simpler volume node for
+         this, as doing merge + split is heavy for our needs */
+      pod = wp_spa_pod_new_object ("PortConfig", "PortConfig",
+          "direction",  "I", pw_direction_reverse (self->direction),
+          "mode",       "I", SPA_PARAM_PORT_CONFIG_MODE_dsp,
+          "format",     "P", format,
+          NULL);
+      wp_proxy_set_param (WP_PROXY (self->node), SPA_PARAM_PortConfig, 0, pod);
+
+      pod = wp_spa_pod_new_object ("PortConfig", "PortConfig",
+          "direction",  "I", self->direction,
+          "mode",       "I", SPA_PARAM_PORT_CONFIG_MODE_dsp,
+          "monitor",    "b", FALSE,
+          "control",    "b", self->control_port,
+          "format",     "P", format,
+          NULL);
+      wp_proxy_set_param (WP_PROXY (self->node), SPA_PARAM_PortConfig, 0, pod);
+
+      /* handle the info callback */
+      g_signal_connect_object (self->node, "state-changed",
+          (GCallback) on_node_state_changed, self, 0);
+
+      g_autoptr (WpCore) core = wp_proxy_get_core (WP_PROXY (self->node));
+      wp_core_sync (core, NULL,
+          (GAsyncReadyCallback) on_ports_configuration_done, transition);
+      break;
+    }
+    default:
+      g_return_if_reached ();
+  }
+}
+
+static void
+si_convert_activate_rollback (WpSessionItem * item)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+
+  g_ptr_array_set_size (self->links, 0);
+  wp_session_item_clear_flag (item, WP_SI_FLAG_CONFIGURED);
+}
+
+static GVariant *
+si_convert_get_stream_registration_info (WpSiStream * self)
+{
+  GVariantBuilder b;
+
+  g_variant_builder_init (&b, G_VARIANT_TYPE ("(sa{ss})"));
+  g_variant_builder_add (&b, "s", "default");
+  g_variant_builder_add (&b, "a{ss}", NULL);
+
+  return g_variant_builder_end (&b);
+}
+
+static WpProperties *
+si_convert_get_stream_properties (WpSiStream * self)
+{
+  return NULL;
+}
+
+static WpSiEndpoint *
+si_convert_get_stream_parent_endpoint (WpSiStream * self)
+{
+  return WP_SI_ENDPOINT (wp_session_item_get_parent (WP_SESSION_ITEM (self)));
+}
+
+static void
+si_convert_stream_init (WpSiStreamInterface * iface)
+{
+  iface->get_registration_info = si_convert_get_stream_registration_info;
+  iface->get_properties = si_convert_get_stream_properties;
+  iface->get_parent_endpoint = si_convert_get_stream_parent_endpoint;
+}
+
+static GVariant *
+si_convert_get_ports (WpSiPortInfo * item, const gchar * context)
+{
+  WpSiConvert *self = WP_SI_CONVERT (item);
+  g_auto (GVariantBuilder) b = G_VARIANT_BUILDER_INIT (G_VARIANT_TYPE_ARRAY);
+  g_autoptr (WpIterator) it = NULL;
+  g_auto (GValue) val = G_VALUE_INIT;
+  WpDirection direction = self->direction;
+  guint32 node_id;
+
+  /* context can only be either NULL or "reverse" */
+  if (!g_strcmp0 (context, "reverse")) {
+    self->direction = (self->direction == WP_DIRECTION_INPUT) ?
+        WP_DIRECTION_OUTPUT : WP_DIRECTION_INPUT;
+  }
+  else if (context != NULL) {
+    /* on any other context, return an empty list of ports */
+    return g_variant_new_array (G_VARIANT_TYPE ("(uuu)"), NULL, 0);
+  }
+
+  g_variant_builder_init (&b, G_VARIANT_TYPE ("a(uuu)"));
+  node_id = wp_proxy_get_bound_id (WP_PROXY (self->node));
+
+  for (it = wp_node_iterate_ports (self->node);
+       wp_iterator_next (it, &val);
+       g_value_unset (&val))
+  {
+    WpPort *port = g_value_get_object (&val);
+    g_autoptr (WpProperties) props = NULL;
+    const gchar *channel;
+    guint32 port_id, channel_id = 0;
+
+    if (wp_port_get_direction (port) != direction)
+      continue;
+
+    port_id = wp_proxy_get_bound_id (WP_PROXY (port));
+
+    /* try to find the audio channel; if channel is NULL, this will silently
+       leave the channel_id to its default value, 0 */
+    props = wp_proxy_get_properties (WP_PROXY (port));
+    channel = wp_properties_get (props, PW_KEY_AUDIO_CHANNEL);
+    wp_spa_type_get_by_nick (WP_SPA_TYPE_TABLE_AUDIO_CHANNEL, channel,
+        &channel_id, NULL, NULL);
+
+    g_variant_builder_add (&b, "(uuu)", node_id, port_id, channel_id);
+  }
+
+  return g_variant_builder_end (&b);
+}
+
+static void
+si_convert_port_info_init (WpSiPortInfoInterface * iface)
+{
+  iface->get_ports = si_convert_get_ports;
+}
+
+static void
+si_convert_finalize (GObject * object)
+{
+  WpSiConvert *self = WP_SI_CONVERT (object);
+  g_clear_pointer (&self->links, g_ptr_array_unref);
+  G_OBJECT_CLASS (si_convert_parent_class)->finalize (object);
+}
+
+static void
+si_convert_class_init (WpSiConvertClass * klass)
+{
+  GObjectClass *object_class = (GObjectClass *) klass;
+  WpSessionItemClass *si_class = (WpSessionItemClass *) klass;
+
+  object_class->finalize = si_convert_finalize;
+
+  si_class->reset = si_convert_reset;
+  si_class->get_associated_proxy = si_convert_get_associated_proxy;
+  si_class->configure = si_convert_configure;
+  si_class->get_configuration = si_convert_get_configuration;
+  si_class->activate_get_next_step = si_convert_activate_get_next_step;
+  si_class->activate_execute_step = si_convert_activate_execute_step;
+  si_class->activate_rollback = si_convert_activate_rollback;
+}
+
+WP_PLUGIN_EXPORT void
+wireplumber__module_init (WpModule * module, WpCore * core, GVariant * args)
+{
+  GVariantBuilder b;
+
+  g_variant_builder_init (&b, G_VARIANT_TYPE ("a(ssymv)"));
+  g_variant_builder_add (&b, "(ssymv)", "node", "t",
+      WP_SI_CONFIG_OPTION_WRITEABLE | WP_SI_CONFIG_OPTION_REQUIRED, NULL);
+  g_variant_builder_add (&b, "(ssymv)", "target", "t",
+      WP_SI_CONFIG_OPTION_WRITEABLE | WP_SI_CONFIG_OPTION_REQUIRED, NULL);
+  g_variant_builder_add (&b, "(ssymv)", "name", "s",
+      WP_SI_CONFIG_OPTION_WRITEABLE, NULL);
+  g_variant_builder_add (&b, "(ssymv)", "enable-control-port", "b",
+      WP_SI_CONFIG_OPTION_WRITEABLE, NULL);
+  g_variant_builder_add (&b, "(ssymv)", "direction", "y", 0, NULL);
+  g_variant_builder_add (&b, "(ssymv)", "channels", "u", 0, NULL);
+
+
+  wp_si_factory_register (core, wp_si_factory_new_simple (
+      "si-convert", si_convert_get_type (), g_variant_builder_end (&b)));
+}