Select the unity HRTF (Head Related Transfer Function) in the auralisation setup – delete the text contents in the Headphone input box. The box turns red but you can ignore this warning in this case. This will produce a BRIR (Binaural Room Impulse Response) where both channels are equal, without any compensation for headphone reproduction. You can afterwards use an audio editing software to keep only one channel.

Alternatively, you can also produce ambisonics impulse responses, by checking “B-format impulse response” in the auralisation setup. The first channel of the impulse response (order 0) will correspond to the pressure impulse response at the receiver.