Iterative Phase-Aware Speech Enhancement:

We proposed to combine the phase information in both signal reconstruction and amplitude estimation in a closed-loop configuration presented in the following reference

• P. Mowlaee, J. Stahl, J. Kulmer, "Iterative Joint MAP Single-Channel Speech Enhancement Given Non-uniform Phase Prior", Speech Communication, pp.~85–96, Feb. 2017.[Audio]

• J. Stahl, P. Mowlaee, "Iterative Harmonic Speech Enhancement", 12th ITG Conference on Speech Communication, pp. 31-35, Paderborn, Germany, 2016.

• P. Mowlaee, R. Saeidi, "Iterative Closed-Loop Phase-Aware Single-Channel Speech Enhancement", IEEE Signal Processing Letters, vol. 20, no. 12, pp. 1235-1239, December, 2013.

The following examples demonstrate the performance of the proposed phase-aware closed-loop idea versus the state-of-the-art amplitude-only enhancement.
The following audio examples demonstrate the performance of the proposed method for different noise and SNR scenarios.


Male speech signal corrupted in babble noise at SNR = 10 (dB):

Clean Speech	Noisy Speech
Phase-Aware Closed-loop	Conventional Amplitude-only Enhancement

Female speech signal corrupted in babble noise at SNR = 5 (dB):

Clean Speech	Noisy Speech
Phase-Aware Closed-loop	Conventional Amplitude-only Enhancement

Realistic car noise scenario

Noisy Speech	Conventional Amplitude-only Enhancement
Phase-Aware Closed-loop

Dictation speech signal in stationary noise:

Noisy Speech	Conventional Amplitude-only Enhancement
Phase-Aware Closed-loop