goto weiter rem C:\_MMS_musik>converter wav2amr Not correct number of arguments!! Input arguments are wav2amr Input.wav Output.amr MRxxx, where xxx=475, 515, 59, 67, 74, 795, 102 or 122 The input needs to be a 16bit wav with 8kHz sampling frequency!!! :weiter converter wav2amr test_input.wav test_input.amr MR102