public ActionResult GetMelodicDrill(string doNoteName, int type)
{
L1C7MelodicDrillType drillType = (L1C7MelodicDrillType)type;
MemoryStream wavStream = GetMelodicDrill(doNoteName, drillType);
wavStream.WavToMp3File(out string fileName);
return(Redirect($"~/Temp/{fileName}"));
}
private MemoryStream GetMelodicDrill(string doNoteName, L1C7MelodicDrillType drillType)
{
double bpm = double.Parse(ConfigurationManager.AppSettings["BPM"]);
double quarterNoteMillis = (60 / bpm) * 1000;
TimeSpan eighthNoteDuration = TimeSpan.FromMilliseconds(quarterNoteMillis / 2);
TimeSpan quarterNoteDuration = TimeSpan.FromMilliseconds(quarterNoteMillis);
TimeSpan dottedQuarterNoteDuration = TimeSpan.FromMilliseconds(quarterNoteMillis).Add(eighthNoteDuration);
TimeSpan halfNoteDuration = TimeSpan.FromMilliseconds(quarterNoteMillis * 2);
TimeSpan halfNoteAndEighthNoteDuration = halfNoteDuration.Add(eighthNoteDuration);
TimeSpan wholeNoteDuration = TimeSpan.FromMilliseconds(quarterNoteMillis * 4);
string doFileName = NAudioHelper.GetFileNameFromNoteName(doNoteName);
doFileName = Path.GetFileName(doFileName);
int doNoteNumber = int.Parse(doFileName.Split('.')[0]);
ISampleProvider note1, note2, note3, note4 = null;
switch (drillType)
{
// Minor 2nd intervals.
case L1C7MelodicDrillType.MiMiFaMiMin2nd:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, quarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, eighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, halfNoteAndEighthNoteDuration);
note4 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, wholeNoteDuration);
break;
case L1C7MelodicDrillType.TiDoDoMin2nd:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.DownMinor2nd, dottedQuarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber, halfNoteAndEighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber, wholeNoteDuration);
break;
case L1C7MelodicDrillType.FaFaMiMiMin2nd:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, quarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, eighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, halfNoteAndEighthNoteDuration);
note4 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, wholeNoteDuration);
break;
case L1C7MelodicDrillType.DoTiDoMin2nd:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber, dottedQuarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.DownMinor2nd, halfNoteAndEighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber, wholeNoteDuration);
break;
// Major 7th intervals.
case L1C7MelodicDrillType.DoDoTiDoMaj7th:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber, quarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber, eighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, halfNoteAndEighthNoteDuration);
note4 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfectOctave, wholeNoteDuration);
break;
case L1C7MelodicDrillType.FaMiMiMaj7th:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, dottedQuarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor10th, halfNoteAndEighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor10th, wholeNoteDuration);
break;
case L1C7MelodicDrillType.TiTiDoDoMaj7th:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, quarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, eighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber, halfNoteAndEighthNoteDuration);
note4 = NAudioHelper.GetSampleProvider(doNoteNumber, wholeNoteDuration);
break;
case L1C7MelodicDrillType.MiFaMiMaj7th:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor10th, dottedQuarterNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, halfNoteAndEighthNoteDuration);
note3 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, wholeNoteDuration);
break;
default:
throw new NotSupportedException($"L1C7MelodicDrillType '{drillType}' is not supported.");
}
var phrase = note1
.FollowedBy(note2)
.FollowedBy(note3);
if (note4 != null)
{
phrase = phrase.FollowedBy(note4);
}
var stwp = new SampleToWaveProvider(phrase);
MemoryStream wavStream = new MemoryStream();
WaveFileWriter.WriteWavFileToStream(wavStream, stwp);
wavStream.Position = 0;
return(wavStream);
}
private MemoryStream GetMelodicInterval(string doNoteName, L1C7MelodicDrillType drillType)
{
double bpm = double.Parse(ConfigurationManager.AppSettings["BPM"]);
double quarterNoteMillis = (60 / bpm) * 1000;
TimeSpan halfNoteDuration = TimeSpan.FromMilliseconds(quarterNoteMillis * 2);
string doFileName = NAudioHelper.GetFileNameFromNoteName(doNoteName);
doFileName = Path.GetFileName(doFileName);
int doNoteNumber = int.Parse(doFileName.Split('.')[0]);
ISampleProvider note1, note2;
switch (drillType)
{
#region Minor 2nds / minor 7ths
// Minor 2nd intervals.
case L1C7MelodicDrillType.MiFa2Asc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, halfNoteDuration);
break;
case L1C7MelodicDrillType.TiDo2Asc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfectOctave, halfNoteDuration);
break;
case L1C7MelodicDrillType.FaMi2Desc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor3rd, halfNoteDuration);
break;
case L1C7MelodicDrillType.DoTi2Desc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfectOctave, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, halfNoteDuration);
break;
// Major 7th intervals.
case L1C7MelodicDrillType.DoTi7Asc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, halfNoteDuration);
break;
case L1C7MelodicDrillType.FaMi7Asc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor10th, halfNoteDuration);
break;
case L1C7MelodicDrillType.TiDo7Desc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor7th, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber, halfNoteDuration);
break;
case L1C7MelodicDrillType.MiFa7Desc:
note1 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpMajor10th, halfNoteDuration);
note2 = NAudioHelper.GetSampleProvider(doNoteNumber + Interval.UpPerfect4th, halfNoteDuration);
break;
#endregion Major 2nds / min 7ths
default:
throw new NotSupportedException($"L1C6MelodicDrillType '{drillType}' is not supported.");
}
var phrase = note1
.FollowedBy(note2);
var stwp = new SampleToWaveProvider(phrase);
MemoryStream wavStream = new MemoryStream();
WaveFileWriter.WriteWavFileToStream(wavStream, stwp);
wavStream.Position = 0;
return(wavStream);
}
