EURASIP Journal on Audio, Speech, and Music Processing

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
		$\frac{7 π}{32}$	$\frac{5 π}{32}$	$\frac{3 π}{32}$	$\frac{π}{32}$
Ind	$\frac{11 π}{36}$	20.76	–	–	–	20.76
3D-M/S	$\frac{11 π}{36}$	21.45	–	–	–	21.45
PCA	$\frac{11 π}{36}$	21.95	–	–	–	21.95
Ind	$\frac{13 π}{36}$	15.37	21.14	–	–	18.26
3D-M/S	$\frac{13 π}{36}$	16.07	21.88	–	–	18.98
PCA	$\frac{13 π}{36}$	16.54	22.74	–	–	19.64
Ind	$\frac{15 π}{36}$	23.48	23.28	22.08	–	22.95
3D-M/S	$\frac{15 π}{36}$	23.77	22.93	22.54	–	23.08
PCA	$\frac{15 π}{36}$	23.86	23.78	23.49	–	23.71
Ind	$\frac{17 π}{36}$	21.82	19.06	18.93	19.36	19.79
3D-M/S	$\frac{17 π}{36}$	21.88	18.52	19.02	19.51	19.73
PCA	$\frac{17 π}{36}$	21.92	21.36	19.18	20.57	20.76

SNR (dB) of three methods for 10 discrete virtual source positions at about 64 kbps.

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