EURASIP Journal on Audio, Speech, and Music Processing

Table 1 Computational cost of different system blocks

From: Stereophonic hands-free communication system based on microphone array fixed beamforming: real-time implementation and evaluation

	Computational cost
Stereophonic	(2∗Q_SAEC∗(8∗(1 + K)∗log(2∗Q_SAEC) + 1) +
acoustic echo	+ (88K + 9)∗(Q_SAEC + 1))/Q_SAEC
canceler
Double-talk	((136∗K_DTD + 40)∗(Q_SAEC + 1) +
detector	+ 34∗Q_SAEC + 210 + 16∗(1 + K_DTD) +
	+ ∗Q_SAEClog(2∗Q_SAEC))/Q_SAEC
Decorrelation	(2∗(2∗(2Q_SAEC∗log(2Q_SAEC)) + 2Q_SAEC + )
module	) + 4(Q_SAEC + 1)) + 2∗2∗Q_SAEC∗4)/Q_SAEC
Beamformer	M∗(2∗2Q_BF∗log(2Q_BF) + 6∗2Q_BF)/Q_BF +
	+ ((M−1)∗(Q_BF + 1))/Q_BF

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