Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Noise suppression for the AMR codec; Service description; Stage 1 (V10.0.0; 3GPP TS 22.076 version 10.0.0 Release 10)
The present document specifies the stage 1 description for the Noise Suppression feature for the AMR codec which enhances the input speech signal corrupted by acoustic noise. In analogy with ITU-T Recommendations I.130 [1]@ Stage 1 is an overall service description@ from the service subscriber's and user's standpoints@ that views the network as a single entity which provides services to the user.