We can encode 7 7 5 5 4 4 2 as F(7,5,4,2,x) and set it to a variable B so that we can re-use these notes.įinally, we can join the notes like so: join(A,B,B,A) to get the final sequence of notes. By joining the two resultant lists and storing it in a variable A, we can re-use these 14 notes at the end of the song. Also, the middle 14 notes ( 7 7 5 5 4 4 2, 7 7 5 5 4 4 2) is just 7 7 5 5 4 4 2 repeated twice. With a full understanding of function F, we can now encode the number sequence shown earlier with F.įirst note that the first 14 notes ( 0 0 7 7 9 9 7, 5 5 4 4 2 2 0) are repeated at the end as well. This will play the note d for twice as long, emulating a half note. Public byte Samples, which is a line segment of length 2 at y level d. Samples = Samples.Concat(RenderNote(note + "", note.Length > 1 ? note - '0' : 4, fmt)).ToArray() Var result = new byte // For 120BPM tempoįor (int i = 0 i ().Select(x => x.Value)) ![]() Throw new NotImplementedException("Unsupported Note") Private static IEnumerable RenderNote(string note, int length, Fmt fmt) WavFile = header.ToByteArray().Concat(thefile).ToArray() Var thefile = data.SelectMany(x => x.ToByteArray()).ToArray() If (value.GetType().Equals(typeof(byte))) Return ((char) value).Select(y => Convert.ToByte(y)) If (value.GetType().Equals(typeof(char))) Return BitConverter.GetBytes((UInt32) value) If (value.GetType().Equals(typeof (UInt32))) Return BitConverter.GetBytes((UInt16) value) If (value.GetType().Equals(typeof (UInt16))) Return o.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance) Public static byte ToByteArray(this object o) Not wasting too much of my time doing it.wav file from the string used for the QBasic solution in C# (single octave, no accidentals). So, what I did here was implement support for generating a. This is a code-golf, so shortest code wins.The focus should be on code size, sound quality, or both (explain which one you decided on). Preferably, it should sound good as well. At the very least, the song should be easily recognizable. For example, embedding the Ogg Vorbis file from Wikipedia would not be allowed. Your program must actually generate its output. If your programming language doesn't have convenient access to audio hardware, your program must create an output file in some standard format such as WAV or MIDI. Your program must use the computer's sound card. It is sung to the tune of the French melody Ah. The poem, which is in couplet form, was first published in 1806 in Rhymes for the Nursery, a collection of poems by Taylor and her sister Ann. The lyrics are from an early-19th-century English poem by Jane Taylor, The Star. Musical note#Note frequency (in hertz) (the formula for calculating the frequency of each note) Twinkle, Twinkle, Little Star is a popular English lullaby.Modern musical symbols (to learn about the music notation used above).Twinkle Twinkle Little Star (has an audio clip of what your program's output should sound like).Some Wikipedia articles that may be useful: Attribution: Helix84 at the English language Wikipedia Blahedo at the English language Wikipedia.) ![]() (This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Write a program to play the popular English nursery rhyme.
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