public FluidsynthMidiReceiver(Context context)
{
#if MIDI_MANAGER
access = new FluidsynthMidiAccess();
access.ConfigureSettings = (settings) => {
#else
var settings = new Settings();
#endif
settings [ConfigurationKeys.AudioDriver].StringValue = "oboe";
//settings [ConfigurationKeys.SynthParallelRender].IntValue = 0;
//settings [ConfigurationKeys.SynthThreadsafeApi].IntValue = 0;
//settings [ConfigurationKeys.AudioPeriods].IntValue = 16;
//settings [ConfigurationKeys.AudioPeriods].IntValue = 64;
settings [ConfigurationKeys.AudioSampleFormat].StringValue = "16bits"; // float or 16bits
var manager = context.GetSystemService(Context.AudioService).JavaCast <AudioManager> ();
// Note that it is NOT audio sample rate but *synthesizing* sample rate.
// So it is kind of wrong assumption that AudioManager.PropertyOutputSampleRate would give the best outcome...
//var sr = double.Parse (manager.GetProperty (AudioManager.PropertyOutputSampleRate));
//settings [ConfigurationKeys.SynthSampleRate].DoubleValue = sr;
settings [ConfigurationKeys.SynthSampleRate].DoubleValue = 11025;
var fpb = double.Parse(manager.GetProperty(AudioManager.PropertyOutputFramesPerBuffer));
settings [ConfigurationKeys.AudioPeriodSize].IntValue = (int)fpb;
#if MIDI_MANAGER
};
SynthAndroidExtensions.GetSoundFonts(access.SoundFonts, context, predefined_temp_path);
output = access.OpenOutputAsync(access.Outputs.First().Id).Result;
#else
syn = new Synth(settings);
var sfs = new List <string> ();
SynthAndroidExtensions.GetSoundFonts(sfs, context, predefined_temp_path);
asset_sfloader = new AndroidNativeAssetSoundFontLoader(settings, context.Assets);
syn.AddSoundFontLoader(asset_sfloader);
foreach (var sf in sfs)
{
syn.LoadSoundFont(sf, false);
}
adriver = new AudioDriver(syn.Settings, syn);
#endif
}
public FluidsynthMidiReceiver(Context context)
{
#if MIDI_MANAGER
access = new FluidsynthMidiAccess ();
access.ConfigureSettings = (settings) => {
#else
var settings = new Settings ();
#endif
//settings [ConfigurationKeys.AudioDriver].StringValue = "opensles";
//settings [ConfigurationKeys.SynthParallelRender].IntValue = 0;
//settings [ConfigurationKeys.SynthThreadsafeApi].IntValue = 0;
//settings [ConfigurationKeys.AudioPeriods].IntValue = 16;
//settings [ConfigurationKeys.AudioPeriods].IntValue = 64;
settings [ConfigurationKeys.AudioSampleFormat].StringValue = "16bits"; // float or 16bits
var manager = context.GetSystemService (Context.AudioService).JavaCast<AudioManager> ();
// Note that it is NOT audio sample rate but *synthesizing* sample rate.
// So it is kind of wrong assumption that AudioManager.PropertyOutputSampleRate would give the best outcome...
//var sr = double.Parse (manager.GetProperty (AudioManager.PropertyOutputSampleRate));
//settings [ConfigurationKeys.SynthSampleRate].DoubleValue = sr;
settings [ConfigurationKeys.SynthSampleRate].DoubleValue = 11025;
var fpb = double.Parse (manager.GetProperty (AudioManager.PropertyOutputFramesPerBuffer));
settings [ConfigurationKeys.AudioPeriodSize].IntValue = (int) fpb;
#if MIDI_MANAGER
};
SynthAndroidExtensions.GetSoundFonts (access.SoundFonts, context, predefined_temp_path);
output = access.OpenOutputAsync (access.Outputs.First ().Id).Result;
#else
syn = new Synth (settings);
var sfs = new List<string> ();
SynthAndroidExtensions.GetSoundFonts (sfs, context, predefined_temp_path);
asset_stream_loader = new AndroidAssetStreamLoader (context.Assets);
asset_sfloader = new SoundFontLoader (syn, asset_stream_loader);
syn.AddSoundFontLoader (asset_sfloader);
foreach (var sf in sfs)
syn.LoadSoundFont (sf, false);
adriver = new AudioDriver (syn.Settings, syn);
#endif
}
public void UpdateSelectedInstrument(SoundFontSelection item)
{
if (skip_loading)
{
return;
}
var prevItem = SelectedSoundItem;
SelectedSoundItem = item;
if (output != null && item.File != prevItem.File)
{
output.CloseAsync();
keyon_flags = new bool [128];
}
if (prevItem?.File != item.File)
{
access = new FluidsynthMidiAccess();
if (File.Exists("/dev/snd/seq")) // ALSA
{
access.ConfigureSettings = s =>
s [NFluidsynth.ConfigurationKeys.AudioDriver].StringValue = "alsa";
}
access.SoundFonts.Add(item.File);
output = access.OpenOutputAsync(access.Outputs.First().Id).Result;
}
int ch = item.Bank >= 128 ? 9 : 0;
/*
* output.Send (new byte[] {(byte) (MidiEvent.CC + ch), MidiCC.BankSelect, (byte) (item.Bank / 0x80)}, 0, 3, 0);
* output.Send (new byte[] {(byte) (MidiEvent.CC + ch), MidiCC.BankSelectLsb, (byte) (item.Bank % 0x80)}, 0, 3, 0);
* output.Send (new byte[] {(byte) (MidiEvent.Program + ch), (byte) (item.Instrument % 128)}, 0, 2, 0);
* output.Send (new byte[] {(byte) (MidiEvent.CC + ch), MidiCC.Volume, 120}, 0, 3, 0);
*/
output.Send(new byte[] { (byte)(MidiEvent.CC + ch), MidiCC.BankSelect, (byte)(item.Bank / 0x80) }, 0, 3, 0);
output.Send(new byte[] { (byte)(MidiEvent.CC + ch), MidiCC.BankSelectLsb, (byte)(item.Bank % 0x80) }, 0, 3, 0);
output.Send(new byte[] { (byte)(MidiEvent.Program + ch), (byte)(item.Patch % 128) }, 0, 2, 0);
output.Send(new byte[] { (byte)(MidiEvent.CC + ch), MidiCC.Volume, 127 }, 0, 3, 0);
output.Send(new byte[] { (byte)(MidiEvent.CC + ch), MidiCC.Expression, 127 }, 0, 3, 0);
}