Serial connection between multiple pannerNodes recursively

Dear All,

 

Here is an question about connection between multiple pannerNodes.

 

Example,

Source1 -> Panner1 ->  

                           Panner3 -> Destination

Source2 -> Panner2 ->

 

In this case, generated buffers from Source1 refer values such as
dopplerShift, distanceConeGain, azimuth and elevation from Panner1 and
Panner3.

In the next connection, generated buffers from Source2 refer values from
Panner2 and Panner3.

 

If there is recursively serial connection between multiple panner nodes to
audiobuffersourcenode, which panners should affect the pitch of
audioBufferSource for dopper shift.

 

In example, Source1 ( Panner1 or Panner3, both ? )

Destination = Panner3 ( Panner1 ( Source1 ) ) ) ?

Destination = Panner1 ( Source1 ) ?

Destination = Panner3 ( Source1 ) ?

 

On process of each AudioNode will generate buffers for their purpose.

Is there anyone can guide clearly this case about all values how to work?