In [25], the relative transfer function (RTF -based BM foRTF -basedR BMamforming was proposed.
The research quantifies uncertainty in the transfer function using parameters of the non-absolute distribution of relative transfer errors.
This correction can be done using an adaptive filter [8], back-projection [9, 10], or the relative transfer functions between the target speaker and the microphones [11].
In this paper, we provide a theoretical analysis to show that Directional BSS converges to a relative transfer function (RTF -based BM.
When the background noise is stationary over the measurement period either a voice activity detector (VAD) [2] estimate or a relative transfer function (RTF) estimate can be found [13].
It should be noted that the phase of the CPSD is equal to the phase of the relative transfer function (RTF) between the microphones, since both only differ from a different magnitude response.
The advantage of estimating the propagation vectors from the data, rather than using anechoic propagation models, is well-known since the development of the transfer function-GSC [17] and the relative transfer function (RTF -GSC [18].
These include the relative transfer function generalized sidelobe canceler (RTF-GSC) [13], the minimum variance distortionless response (MVDR) beamformer [14], and the speech distortion weighted multichannel Wiener filter (SDW-MWF) [15, 16].
The effect of the magnetic dipole tilt angle on the optimal control inputs and the relative transfer trajectories for formation establishment or reconfiguration is also investigated by comparisons with the results derived from a nontilted dipole model.
For the steering vector, either the transfer function of the complete room impulse response (RIR) (including reverberation), the direct path of the RIR (corresponding to the free-field head-related transfer function (HRTF)) or the so-called relative transfer function can be used [11, 22].
The low- and middle-income function is unbiased, with a median relative transfer error of −.05 (95% CI: −.15 to.03), a 25th percentile error of −.22 (95% CI: −.29 to −.19), and a 75th percentile error of.2095%CI .14to.30of.2095%CI .14to.30
