1. is It possible to set Room size for audio playback in iOS? (For
   example kReverbRoomType_MediumHall, kReverbRoomType_LargeChamber,
   kReverbRoomType_LargeHall2 )

My AUGraph connected in the following order

FilePlayerNode->MixerNode->EffectNode(bandEQ)->EffectNode(reverb2)->outPutNode

I tried kAudioUnitSubType_SpatialMixer and setting
kAudioUnitProperty_ReverbRoomType property. But it is not working.

AudioUnitSetProperty(myPlayer.mxUnit, kAudioUnitProperty_ReverbRoomType,
                                    kAudioUnitScope_Global, 0,
&theValue, sizeof(theValue);

P.S I tried setting all the three scopes

For Mac we can use kAudioUnitSubType_MatrixReverb.

   1. Is it possible create a surround effect in iOS using my above AUGraph
   setup? Are there any dedicated audio unit for creating surround effect?

Regards
Clement
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