Stereo Panner

This tool allows to pan a stereo source as 2 point sources on $N$ loudspeakers using Ambisonic equivalent panning laws¹ up to degree $L$. See the Panner tool for details on the panning laws, the Encoder tool for details on point source and plane wave encoding and the Stereo Encoder tool for details on the left and right channels positions.

The NF filters can be activated or not at compilation time with parameter nfon. If activated (nfon=1), the gain attenuation and propagation delay between loudspeakers are as well equalized. If not activated (nfon=0), no near field effect is included in the process.

Compilation parameters

• L: maximal Spherical Harmonics degree, $L > 0$,
• N: number of loudspeaker, $N > 0$,
• nfon: activate or not NF filters: nfon=0 for no NF, nfon=1 for NF.
• speaker(n) = (x, y, z) $n$-th loudspeaker Cartesian coordinates in meters. One loudspeaker per line.
• doppler : Possibility of Doppler effect : 0 => No, 1 => Yes.

Inputs / Outputs

• Inputs: 2
• Outputs: $N$

User Interface

For the $i$-th source:

Element	OSC	Min value	Max value
Gain (dB)	gain	-20	20
Doppler (doppler = 1)	doppler_i	0	1
Radius $r$ (m)	radius	0.75	50
Azimuth $\theta$ ($^\circ$)	azimuth	-180	180
Elevation $\phi$ ($^\circ$)	elevation	-90	90
Width $\alpha$ ($^\circ$)	width	0	360
Roll $\beta$ ($^\circ$)	roll	-180	180
Doppler	doppler	0	1