diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index fdbbe1b..49a0dde 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -287,9 +287,12 @@
                     sp<SwAudioOutputDescriptor> desc = mOutputs.valueFor(output);
                     // close unused outputs after device disconnection or direct outputs that have
                     // been opened by checkOutputsForDevice() to query dynamic parameters
+                    // "outputs" vector never contains duplicated outputs
                     if ((state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE)
                             || (((desc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0) &&
-                                (desc->mDirectOpenCount == 0))) {
+                                (desc->mDirectOpenCount == 0))
+                            || (((desc->mFlags & AUDIO_OUTPUT_FLAG_SPATIALIZER) != 0) &&
+                                !isOutputOnlyAvailableRouteToSomeDevice(desc))) {
                         clearAudioSourcesForOutput(output);
                         closeOutput(output);
                     }
@@ -5361,6 +5364,29 @@
     }
 }
 
+
+bool AudioPolicyManager::isOutputOnlyAvailableRouteToSomeDevice(
+        const sp<SwAudioOutputDescriptor>& outputDesc) {
+    if (outputDesc->isDuplicated()) {
+        return false;
+    }
+    DeviceVector devices = outputDesc->supportedDevices();
+    for (size_t i = 0; i < mOutputs.size(); i++) {
+        sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
+        if (desc == outputDesc || desc->isDuplicated()) {
+            continue;
+        }
+        DeviceVector sharedDevices = desc->filterSupportedDevices(devices);
+        if (!sharedDevices.isEmpty()
+                && (desc->devicesSupportEncodedFormats(sharedDevices.types())
+                    == outputDesc->devicesSupportEncodedFormats(sharedDevices.types()))) {
+            return false;
+        }
+    }
+    return true;
+}
+
+
 status_t AudioPolicyManager::getSpatializerOutput(const audio_config_base_t *mixerConfig,
                                                         const audio_attributes_t *attr,
                                                         audio_io_handle_t *output) {
@@ -5376,80 +5402,67 @@
     }
     if (!canBeSpatializedInt(
             attr, configPtr, devicesTypeAddress)) {
-        ALOGW("%s provided attributes or mixer config cannot be spatialized", __func__);
+        ALOGV("%s provided attributes or mixer config cannot be spatialized", __func__);
         return BAD_VALUE;
     }
 
     sp<IOProfile> profile =
             getSpatializerOutputProfile(configPtr, devicesTypeAddress);
     if (profile == nullptr) {
-        ALOGW("%s no suitable output profile for provided attributes or mixer config", __func__);
+        ALOGV("%s no suitable output profile for provided attributes or mixer config", __func__);
         return BAD_VALUE;
     }
 
-    if (mSpatializerOutput != nullptr && mSpatializerOutput->mProfile == profile
-            && configPtr != nullptr
-            && configPtr->channel_mask == mSpatializerOutput->mMixerChannelMask) {
-        *output = mSpatializerOutput->mIoHandle;
-        ALOGV("%s returns current spatializer output %d", __func__, *output);
-        return NO_ERROR;
-    }
-    mSpatializerOutput.clear();
+    std::vector<sp<SwAudioOutputDescriptor>> spatializerOutputs;
     for (size_t i = 0; i < mOutputs.size(); i++) {
         sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
-        if (!desc->isDuplicated() && desc->mProfile == profile) {
-            ALOGV("%s found output %d for spatializer profile", __func__, desc->mIoHandle);
-            mSpatializerOutput = desc;
-            break;
+        if (!desc->isDuplicated()
+                && (desc->mFlags & AUDIO_OUTPUT_FLAG_SPATIALIZER) != 0) {
+            spatializerOutputs.push_back(desc);
+            ALOGV("%s adding opened spatializer Output %d", __func__, desc->mIoHandle);
         }
     }
-    if (mSpatializerOutput == nullptr) {
-        ALOGW("%s no opened spatializer output for profile %s",
-                __func__, profile->getName().c_str());
-        return BAD_VALUE;
+    mSpatializerOutput.clear();
+    bool outputsChanged = false;
+    for (const auto& desc : spatializerOutputs) {
+        if (desc->mProfile == profile
+                && (configPtr == nullptr
+                   || configPtr->channel_mask == desc->mMixerChannelMask)) {
+            mSpatializerOutput = desc;
+            ALOGV("%s reusing current spatializer output %d", __func__, desc->mIoHandle);
+        } else {
+            ALOGV("%s closing spatializerOutput output %d to match channel mask %#x"
+                    " and devices %s", __func__, desc->mIoHandle,
+                    configPtr != nullptr ? configPtr->channel_mask : 0,
+                    devices.toString().c_str());
+            closeOutput(desc->mIoHandle);
+            outputsChanged = true;
+        }
     }
 
-    if (configPtr != nullptr
-            && configPtr->channel_mask != mSpatializerOutput->mMixerChannelMask) {
-        audio_config_base_t savedMixerConfig = {
-            .sample_rate = mSpatializerOutput->getSamplingRate(),
-            .format = mSpatializerOutput->getFormat(),
-            .channel_mask = mSpatializerOutput->mMixerChannelMask,
-        };
-        DeviceVector savedDevices = mSpatializerOutput->devices();
-
-        ALOGV("%s reopening spatializer output to match channel mask %#x (current mask %#x)",
-            __func__, configPtr->channel_mask, mSpatializerOutput->mMixerChannelMask);
-
-        closeOutput(mSpatializerOutput->mIoHandle);
-        //from now on mSpatializerOutput is null
-
+    if (mSpatializerOutput == nullptr) {
         sp<SwAudioOutputDescriptor> desc =
                 openOutputWithProfileAndDevice(profile, devices, mixerConfig);
-        if (desc == nullptr) {
-            // re open the spatializer output with previous channel mask
-            desc = openOutputWithProfileAndDevice(profile, savedDevices, &savedMixerConfig);
-            if (desc == nullptr) {
-                ALOGE("%s failed to restore mSpatializerOutput with previous config", __func__);
-            } else {
-                mSpatializerOutput = desc;
-            }
-            mPreviousOutputs = mOutputs;
-            mpClientInterface->onAudioPortListUpdate();
-            *output = AUDIO_IO_HANDLE_NONE;
-            ALOGW("%s could not open spatializer output with requested config", __func__);
-            return BAD_VALUE;
+        if (desc != nullptr) {
+            mSpatializerOutput = desc;
+            outputsChanged = true;
         }
-        mSpatializerOutput = desc;
-        mPreviousOutputs = mOutputs;
-        mpClientInterface->onAudioPortListUpdate();
     }
 
     checkVirtualizerClientRoutes();
 
+    if (outputsChanged) {
+        mPreviousOutputs = mOutputs;
+        mpClientInterface->onAudioPortListUpdate();
+    }
+
+    if (mSpatializerOutput == nullptr) {
+        ALOGV("%s could not open spatializer output with requested config", __func__);
+        return BAD_VALUE;
+    }
     *output = mSpatializerOutput->mIoHandle;
-    ALOGV("%s returns new spatializer output %d", __func__, *output);
-    return NO_ERROR;
+    ALOGV("%s returning new spatializer output %d", __func__, *output);
+    return OK;
 }
 
 status_t AudioPolicyManager::releaseSpatializerOutput(audio_io_handle_t output) {
@@ -5460,9 +5473,12 @@
         return BAD_VALUE;
     }
 
-    mSpatializerOutput.clear();
-
-    checkVirtualizerClientRoutes();
+    if (!isOutputOnlyAvailableRouteToSomeDevice(mSpatializerOutput)) {
+        ALOGV("%s closing spatializer output %d", __func__, mSpatializerOutput->mIoHandle);
+        closeOutput(mSpatializerOutput->mIoHandle);
+        //from now on mSpatializerOutput is null
+        checkVirtualizerClientRoutes();
+    }
 
     return NO_ERROR;
 }
@@ -5739,6 +5755,21 @@
             inputDesc->close();
         }
     }
+
+    // Check if spatializer outputs can be closed until used.
+    // mOutputs vector never contains duplicated outputs at this point.
+    std::vector<audio_io_handle_t> outputsClosed;
+    for (size_t i = 0; i < mOutputs.size(); i++) {
+        sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
+        if ((desc->mFlags & AUDIO_OUTPUT_FLAG_SPATIALIZER) != 0
+                && !isOutputOnlyAvailableRouteToSomeDevice(desc)) {
+            outputsClosed.push_back(desc->mIoHandle);
+            desc->close();
+        }
+    }
+    for (auto output : outputsClosed) {
+        removeOutput(output);
+    }
 }
 
 void AudioPolicyManager::addOutput(audio_io_handle_t output,
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 715ee6d..0d9b5bf 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -1097,6 +1097,16 @@
         void checkVirtualizerClientRoutes();
 
         /**
+         * @brief Returns true if at least one device can only be reached via the output passed
+         * as argument. Always returns false for duplicated outputs.
+         * This can be used to decide if an output can be closed without forbidding
+         * playback to any given device.
+         * @param outputDesc the output to consider
+         * @return true if at least one device can only be reached via the output.
+         */
+        bool isOutputOnlyAvailableRouteToSomeDevice(const sp<SwAudioOutputDescriptor>& outputDesc);
+
+        /**
          * @brief getInputForDevice selects an input handle for a given input device and
          * requester context
          * @param device to be used by requester, selected by policy mix rules or engine