public static bool Play(string strRootPath, SoundItemProperty prop) { FMOD.RESULT result; if (channel != null) { channel.stop(); } string name = strRootPath + prop.FileName; FMOD.MODE mode = FMOD.MODE.DEFAULT; if (prop.Type == SoundItemProperty.typeSound[0]) { mode |= FMOD.MODE._2D | FMOD.MODE.CREATESAMPLE | FMOD.MODE.SOFTWARE; } else if (prop.Type == SoundItemProperty.typeSound[1]) { mode |= FMOD.MODE._3D | FMOD.MODE.CREATESAMPLE | FMOD.MODE.SOFTWARE | FMOD.MODE._3D_LINEARROLLOFF | FMOD.MODE._3D_WORLDRELATIVE | FMOD.MODE._3D_IGNOREGEOMETRY; } else if (prop.Type == SoundItemProperty.typeSound[2]) { mode |= FMOD.MODE._2D | FMOD.MODE.CREATESTREAM | FMOD.MODE.SOFTWARE; } if (prop.Loop == true) { mode |= FMOD.MODE.LOOP_NORMAL; } result = system.createSound(name, mode, ref sound); ERRCHECK(result); result = system.playSound(FMOD.CHANNELINDEX.FREE, sound, true, ref channel); ERRCHECK(result); if (prop.Type == SoundItemProperty.typeSound[1]) { channel.set3DMinMaxDistance(100.0f, prop.MaxDistance); FMOD.VECTOR pos = new FMOD.VECTOR(); pos.x = 0.0f; pos.y = 0.0f; pos.z = 0.0f; FMOD.VECTOR vel = new FMOD.VECTOR(); vel.x = 0.0f; vel.y = 0.0f; vel.z = 0.0f; channel.set3DAttributes(ref pos, ref vel); FMOD.DSP dsp = null; result = system.createDSPByType(FMOD.DSP_TYPE.LOWPASS_SIMPLE, ref dsp); ERRCHECK(result); dsp.setParameter((int)FMOD.DSP_LOWPASS_SIMPLE.CUTOFF, 22000.0f); FMOD.DSPConnection dspcon = null; channel.addDSP(dsp, ref dspcon); } channel.setVolume((float)prop.Volume * 0.01f); channel.setCallback(CHANNELCALLBACK); channel.setPaused(false); return(true); }