AMR to PPC Platinum - Apply different filters to the selected part of an audio file (Ban Pass Filter, High Pass Filter, High Shelf Filter, Low Pass Filter, Low Shelf Filter, Notch Filter). AMR to PPC Platinum is a visual multifunctional audio files editor for Microsoft Windows. It allows you to perform various operations with audio data such as displaying a waveform image of an audio file, filtering, applying. It rips audio CD tracks and saves them into audio formats such as mp3, wav, wma (Windows Media Audio), VQF (Yamaha SoundVQ), orOGG Vorbis, converts MP3, CD, CDA, CD-R, DVD-Audio, AAC, AC3, ID3, M3U, M4A, M4P, MP3 ID3 Tag, OGG, RA, WAV, WMA, MP2, APE, VQF, MPC, AMR, Midi, WAVE, and RM from one to another on-the-fly, resamples MP3 to MP3, WAV to WAV, WMA to WMA, OGG to OGG for changing bitrates, frequency, and other options. MP3 Encoder supports CBR (Constant Bit Rate) and VBR (Variable Bit Rate).