Anyone know how to convert numerial notation into MIDI file?

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i'm trying make a application to convert numerial notation into MIDI file with MIDIToolkit..
anyone know how to do that?
please help..
thank you.. Smile | :)

Posted 26-Jul-15 18:30pm

Dhani Aditya

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Sergey Alexandrovich Kryukov 27-Jul-15 0:45am

It all depends on what kind of notation are you dealing with and what's your problem. It looks like you already know how to create MIDI, don't you?
—SA

Dhani Aditya 27-Jul-15 0:57am

i'm using numerial or number notation like 1 2 3..
now i'm trying to make application to convert numerial notation from pdf file to midi file..
mm.. I do not know exactly how to create MIDI...
can you explain to me? :)

Sergey Alexandrovich Kryukov 27-Jul-15 1:15am

You did not explain how you numerical notation works. If could be anything. How do you denoted tons, chords, durations, dynamics, instruments? and so on... If you don't know how to create MIDI, but reference some library, 1) really reference it, 2) ask what exactly is your problem.
—SA

Dhani Aditya 27-Jul-15 1:48am

thank you for your solution..
mm..
first i'm trying extract numerical notation from pdf file using iText library to take the tones..
after that i'm trying to convert the tones from the result of extraction to midi files..
i just want to convert numerical tones from pdf file to midi..

sorry before..
I am a beginner in midi programming..

Sergey Alexandrovich Kryukov 27-Jul-15 2:05am

You are welcome.
What prevents you from "converting" it? Do you understand what MIDI does? and how your input notation works? What's the problem?
—SA

Dhani Aditya 28-Jul-15 22:51pm

sorry I did not reply to old messages sir..
i'm trying to make application like "Finale application or PDFtoMusic application"..
The application can "convert" PDF music sheet to midi file..
do you know how the application work sir?

thanks for your help.. :)

Sergey Alexandrovich Kryukov 28-Jul-15 23:11pm

You are welcome.
I don't know what application do you mean, but I know how to develop such project. To me, major problem is not MIDI, but very uncertain format of sheet music in PDF. It can be anything. Recognition of the very unstructured graphics of PDF can make the major problem. If you do it, the rest won't be a serious problem.
—SA

Dhani Aditya 29-Jul-15 0:00am

hmm..
until now for pdf file.. i only extract the text with iText library to get tone..
because i think from the text i get i can convert to MIDI.
but i relaize it was not easy..

Sergey Alexandrovich Kryukov 29-Jul-15 0:57am

This is good if you really have the text information on the notes already. But the timing is more difficult. Anyway, iText (iTextSharp) does the job.
—SA

Dhani Aditya 29-Jul-15 1:05am

yes..
after i have the text information on notes.. now i confuse "how the text information become MIDI Messages?"

Dhani Aditya 29-Jul-15 0:02am

from Leslie Sanford C# MIDITookit project..
i see 1 class, MidiNoteConverter.cs..
can you explain what class for?

Sergey Alexandrovich Kryukov 29-Jul-15 0:58am

~~I never looked at it, but~~ I used to use Sandford's MIDIToolkit. Ah, I see. No, you don't need this class. I would rather use the MIDI standard description...
—SA

Dhani Aditya 29-Jul-15 1:02am

oh i see..

Sergey Alexandrovich Kryukov 29-Jul-15 1:04am

I just looked at it. Please see my previous comment, edited.
—SA

Dhani Aditya 29-Jul-15 1:07am

oh okey..
i think this class use to convert note become MIDI file..

Sergey Alexandrovich Kryukov 29-Jul-15 2:13am

No, it's used to calculate frequencies, which you don't need.
—SA

Dhani Aditya 29-Jul-15 2:19am

yes..
after i have the text information on notes.. now i confuse "how the text information become MIDI Messages?"

or "How the text information can read by MIDIToolkit?"

Sergey Alexandrovich Kryukov 29-Jul-15 2:22am

You don't need MIDIToolkit. Of course, it does not "know" about your text representation. You just need to generate MIDI events from notes...
—SA

Dhani Aditya 29-Jul-15 2:30am

alright..
how to generate MIDI events from notes?

sir..
can you give some step to convert pdf to MIDI without using MIDItookit?

Sergey Alexandrovich Kryukov 29-Jul-15 2:32am

You don't need most steps, you already got text. You never specified how it is designed. But you know better what it is. No, you don't need MIDIToolkit.
—SA

Dhani Aditya 29-Jul-15 2:38am

the results of extraction pdf is lkie this..

| . . . +5) 5) | 6).5)1 | 7) . .+5)5) |

this my code to extract text from pdf file

for (int page = 1; page <= reader.NumberOfPages; page++)
{
ITextExtractionStrategy its= new iTextSharp.text.pdf.parser.LocationTextExtractionStrategy();
String s= PdfTextExtractor .GetTextFromPage(reader,page,its);

s = Encoding.UTF8.GetString(ASCIIEncoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(s)));
strText = strText + s;
richTextBox1.Text = strText;
}

Sergey Alexandrovich Kryukov 29-Jul-15 10:05am

It's OK, but what does it mean, +5, 5, |, )? Where is timing? and so on...
—SA

Dhani Aditya 29-Jul-15 10:43am

it' note..
" | " as a sign of bars

" . " as a sign of the length of beats

" ( " , " ) " As a sign of high-low tone

do you know numerial notation sir?

Sergey Alexandrovich Kryukov 29-Jul-15 11:03am

Not clear. There are different numerical notations, I'm not sure I heard of this one. It's more important that you understand it.
—SA

Dhani Aditya 29-Jul-15 11:09am

numerial notation you know like what sir?

can i have your email? if you want to give it to mee..

because i want to send you picture of numerial notation i mean..

Sergey Alexandrovich Kryukov 29-Jul-15 11:52am

Please, solve the problem yourself. You could easily describe the notation in words; if you cannot, the picture will no help, and I don't see anything interesting in it, it can be anything. If you understand the notation you have, you have everything to solve it.
—SA

Dhani Aditya 29-Jul-15 22:38pm

ok sir..
thank you for you're help..
i will try :)

Sergey Alexandrovich Kryukov 30-Jul-15 0:38am

Sure.
—SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2015-07-26T19:25:00

As you are not asking about playing music using MIDI and only want to create files, you don't even need to use any library. The full description of the MIDI file format is available. See, in particular
http://www.music.mcgill.ca/~ich/classes/mumt306/StandardMIDIfileformat.html[^],
http://www.cs.cmu.edu/~music/cmsip/readings/Standard-MIDI-file-format-updated.pdf[^].

Even though you would need to pay the fee to access the official standard document, actual description corresponding to the current MIDI standard 1.1 is available on the Web.

Well, you have the library implementing composing of MIDI files, use the library. You never mentioned what are your problems.

—SA