Yes, I know it and looked at it. I wondered how they made a NoteEncoder,
I am still struggling with that. Nupic says that notes that are "close"
to each other should have the most overlapping bits. But what is "close"
in music?
1) a scalarencoder, where the number of the note is encoded. In this
case "close" means almost the same frequency.
2) 2 scalarencoders, one for the note and a different one for the
octave. This because a note sounds almost the same as that same note an
octave lower or an octave higher.
3) a typical noteencoder and a scalarencoder for the octave. The
noteencoder should take the notes in the following cyclical order:
C,G,D,A,E,.....Es,Bes,F,C, each a quint apart. In this case notes that
are close together sound better together. C-G sounds better together
than C-Cis
Probably I should make all 3 encoders, just to test.
greetings: Jos Theelen
On 2015-10-08 15:14, Marek Otahal wrote:
Hi Jos,
On Thu, Oct 8, 2015 at 3:06 PM, Jos Theelen <[email protected]
<mailto:[email protected]>> wrote:
I am working on a model, that reads melodies and chords from
midifiles, mainly chorales from JS Bach. When the model is given a
new melody without chords, it should find the chords, that sound
correct, conform what it learned from the midifiles.
Nice, I love classical music and music related examples :)
You probably know, but just in case: check out nupic.audio project and a
former hackathon submission that composed song on trained MIDI music.
greetings: Jos Theelen
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