midi.txt

关于midi 文件得介绍 关于midi 文件得介绍

7F       01111111     xx dd ..      Sequencer specific information
                                    xx=number of bytes to be sent
                                    dd=data
The following table lists system messages which control the entire system.
These have no midi channel number. (these will generally only apply to
controlling a midi keyboard, etc.)

Hex      Binary       Data          Description
F8       11111000                   Timing clock used when synchronization is
                                    required.

FA       11111010                   Start current sequence

FB       11111011                   Continue a stopped sequence where left
                                    off

FC       11111100                   Stop a sequence


The following table lists the numbers corresponding to notes for use in note 
on and note off commands.


Octave||                     Note Numbers
   #  ||
      || C   | C#  | D   | D#  | E   | F   | F#  | G   | G#  | A   | A#  | B
-----------------------------------------------------------------------------
   0  ||   0 |   1 |   2 |   3 |   4 |   5 |   6 |   7 |   8 |   9 |  10 | 11
   1  ||  12 |  13 |  14 |  15 |  16 |  17 |  18 |  19 |  20 |  21 |  22 | 23
   2  ||  24 |  25 |  26 |  27 |  28 |  29 |  30 |  31 |  32 |  33 |  34 | 35
   3  ||  36 |  37 |  38 |  39 |  40 |  41 |  42 |  43 |  44 |  45 |  46 | 47
   4  ||  48 |  49 |  50 |  51 |  52 |  53 |  54 |  55 |  56 |  57 |  58 | 59
   5  ||  60 |  61 |  62 |  63 |  64 |  65 |  66 |  67 |  68 |  69 |  70 | 71
   6  ||  72 |  73 |  74 |  75 |  76 |  77 |  78 |  79 |  80 |  81 |  82 | 83
   7  ||  84 |  85 |  86 |  87 |  88 |  89 |  90 |  91 |  92 |  93 |  94 | 95
   8  ||  96 |  97 |  98 |  99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107
   9  || 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119
  10  || 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 |


                                BIBLIOGRAPHY

  "MIDI Systems and Control" Francis Rumsey  1990 Focal Press

  "MIDI and Sound Book for the Atari ST" Bernd Enders and Wolfgang Klemme
          1989 M&T Publishing, Inc.

  MIDI file specs and general MIDI specs were also obtained by sending e-mail
         to [e-mail] with the phrase GET MIDISPEC PACKAGE
         in the message.


------------------------------- DEC.CPP ------------------------------------

/*  file  dec.cpp

by  Dustin Caldwell    ([e-mail])

*/


#include <dos.h>
#include <stdio.h>
#include <stdlib.h>

void helpdoc();

main()
{
        FILE *fp;

        unsigned char ch, c;

        if((fp=fopen(_argv[1], "rb"))==NULL)            /* open file to read */
        {
                printf("cannot open file %s\n",_argv[1]);
                helpdoc();
                exit(-1);
        }

        c=0;
        ch=fgetc(fp);

        while(!feof(fp))                        /* loop for whole file */
        {
                printf("%u\t", ch);             /* print every byte's decimal equiv. */
                c++;
                if(c>8)                                 /* print 8 numbers to a line */
                {
                        c=0;
                        printf("\n");
                }

                ch=fgetc(fp);
        }

        fclose(fp);                     /* close up */
}

void helpdoc()                  /* print help message */
{
        printf("\n   Binary File Decoder\n\n");

        printf("\n Syntax:  dec binary_file_name\n\n");

        printf("by Dustin Caldwell  ([e-mail])\n\n");
        printf("This is a filter program that reads a binary file\n");
        printf("and prints the decimal equivalent of each byte\n");
        printf("tab-separated. This is mostly useful when piped \n");
        printf("into another file to be edited manually.  eg:\n\n");
        printf("c:\>dec sonata3.mid > son3.txt\n\n");
        printf("This will create a file called son3.txt which can\n");
        printf("be edited with any ascii editor. \n\n");
        printf("(rec.exe may also be useful, as it reencodes the \n");
        printf("ascii text file).\n\n");
        printf("Have Fun!!\n");
}

---------------------------- REC.CPP ----------------------------------

/*  File  rec.cpp
        by Dustin Caldwell   ([e-mail])
*/

#include <dos.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>

void helpdoc();

main()
{
        FILE *rfp, *wfp;

        unsigned char ch, c;
        char s[20];

        if((rfp=fopen(_argv[1], "r"))==NULL)                    /* open the read file */
        {
                printf("cannot open file %s \n",_argv[1]);
                helpdoc();
                exit(-1);
        }

        if((wfp=fopen(_argv[2], "wb"))==NULL)                   /* open the write file */
        {
                printf("cannot open file %s \n",_argv[1]);
                helpdoc();
                exit(-1);
        }

        c=0;

        ch=fgetc(rfp);

        while(!feof(rfp))                       /* loop for whole file */
        {

                if(isalnum(ch))                 /* only 'see' valid ascii chars */
                {
                        c=0;
                        while(isdigit(ch))      /* only use decimal digits (0-9) */
                        {
                                s[c]=ch;        /* build a string containing the number */
                                c++;
                                ch=fgetc(rfp);
                        }
                        s[c]=NULL;                      /* must have NULL terminator */

                        fputc(atoi(s), wfp);/* write the binary equivalent to file */

                }

                ch=fgetc(rfp);                  /* loop until next number starts */


        }

        fclose(rfp);                    /* close up */
        fclose(wfp);
}


void helpdoc()          /* print help message */
{
        printf("\n   Text File Encoder\n\n");

        printf("\n Syntax:  rec text_file_name binary_file_name\n\n");

        printf("by Dustin Caldwell  ([e-mail])\n\n");
        printf("This is a program that reads an ascii tab-\n");
        printf("delimited file and builds a binary file where\n");
        printf("each byte of the binary file is one of the decimal\n");
        printf("digits in the text file.\n");
        printf(" eg:\n\n");
        printf("c:\>rec son3.txt son3.mid\n\n");
        printf("(This will create a file called son3.mid which is\n");
        printf("a valid binary file)\n\n");
        printf("(dec.exe may also be useful, as it decodes binary files)\n\n");
        printf("Have Fun!!\n");
}