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Table 2 Discrete virtual source setting and objective results

From: Expanded three-channel mid/side coding for three-dimensional multichannel audio systems

  θ φ Average
  7 π 32 5 π 32 3 π 32 π 32  
Ind 11 π 36 20.76 20.76
3D-M/S 11 π 36 21.45 21.45
PCA 11 π 36 21.95 21.95
Ind 13 π 36 15.37 21.14 18.26
3D-M/S 13 π 36 16.07 21.88 18.98
PCA 13 π 36 16.54 22.74 19.64
Ind 15 π 36 23.48 23.28 22.08 22.95
3D-M/S 15 π 36 23.77 22.93 22.54 23.08
PCA 15 π 36 23.86 23.78 23.49 23.71
Ind 17 π 36 21.82 19.06 18.93 19.36 19.79
3D-M/S 17 π 36 21.88 18.52 19.02 19.51 19.73
PCA 17 π 36 21.92 21.36 19.18 20.57 20.76
  1. SNR (dB) of three methods for 10 discrete virtual source positions at about 64 kbps.