Table 2.

Test confusion matrix for speech decoding accumulated across all subjects during articulation stage.

		Predicted
		Do you understand me	That's perfect	How are you	Good bye	I need help	Accuracy (%)
	Do you understand me	1,332	12	19	11	8	96.38
	That's perfect	10	1,338	14	11	9	96.82
	How are you	21	8	1,331	12	10	96.31
	Good bye	12	15	12	1,337	6	96.74
True	I need help	7	12	14	7	1,342	97.11
	Average:						96.67

A total of 1, 382 test trials have been taken (combined across 8 subjects).