nChannels = nMode == 3 ? 1 : 2;
aff_properties.put("mp3.channels", new Integer(nChannels));
nVBR = m_header.vbr();
af_properties.put("vbr", new Boolean(nVBR));
aff_properties.put("mp3.vbr", new Boolean(nVBR));
aff_properties.put("mp3.vbr.scale", new Integer(m_header.vbr_scale()));
FrameSize = m_header.calculate_framesize();
aff_properties.put("mp3.framesize.bytes", new Integer(FrameSize));
if (FrameSize < 0) throw new UnsupportedAudioFileException("Invalid FrameSize : " + FrameSize);
nFrequency = m_header.frequency();
aff_properties.put("mp3.frequency.hz", new Integer(nFrequency));