1. 3GPP TR 126.978 V4.0.0(2001).Universal Mobile Telecommunications System (UMTS); Results of the AMR Noise Suppression Selection Phase.
2. 3GPP TS 122.076 V5.0.0(2002).Digital Cellular Telecommunications System (Phase 2+); Universal Mobile Telecommunications System (UMTS); Noise Suppression for the AMR Codec; Service Description.
3. 3GPP TS 126.094 V4.0.0(2001).Universal Mobile Telecommunications System (UMTS); Mandatory Speech Codec Speech Processing Functions AMR Speech Codec; Voice Activity Detector (VAD).
4. Accardi A. J.;Cox R.(1999).A Modular Approach to Speech Enhancement with an Application to Speech Coding Proceedings of the IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP) Phoenix Arizona USA vol.1 pp.201–204.
5. Predicting the Intelligibility of Noisy and Nonlinearly Processed Binaural Speech