midi

问题 The last word of a MIDI header chunk specifies the division. It contains information about whether delta times should be interpreted as ticks per quarter note or ticks per frame (where frame is a subdivision of a second). If bit 15 of this word is set then information is in ticks per frame. Next 7 bits (bit 14 through bit 8) specify the amount of frames per second and can contain one of four values: -24, -25, -29, or -30. (they are negative) Does anyone know whether the bit 15 counts towards

问题 I have got one midi file and i want to play that file on web page, currently i am using midi.js player for playing but it is not working on mobile browsers. Please guide me how to play that file or else how can i play midi or convert it into mp3 Here is my code $data = fopen ($midi, 'rb'); $size= filesize($midi); $contents = fread ($data, $size); fclose($data); $encoded= base64_encode($contents); $encode = "'data:audio/midi;base64,".$encoded."=='"; and finally passing base64 value to midi.js

问题 I have got one midi file and i want to play that file on web page, currently i am using midi.js player for playing but it is not working on mobile browsers. Please guide me how to play that file or else how can i play midi or convert it into mp3 Here is my code $data = fopen ($midi, 'rb'); $size= filesize($midi); $contents = fread ($data, $size); fclose($data); $encoded= base64_encode($contents); $encode = "'data:audio/midi;base64,".$encoded."=='"; and finally passing base64 value to midi.js

问题 I want to write a MIDI file with the inputs I receive from the digital piano I have connected. I am using pygame.midi to open an input port and midiutil to write the MIDI file. What I can't wrap my head around is the timing. For example, in addNote(track, channel, pitch, time, duration, volume) , how do I know what time and duration of a note is? When reading a note, I get pitch and volume just fine, but the others I have no idea... I tried using the timestamp but to no avail, it places the

问题 I want to write a MIDI file with the inputs I receive from the digital piano I have connected. I am using pygame.midi to open an input port and midiutil to write the MIDI file. What I can't wrap my head around is the timing. For example, in addNote(track, channel, pitch, time, duration, volume) , how do I know what time and duration of a note is? When reading a note, I get pitch and volume just fine, but the others I have no idea... I tried using the timestamp but to no avail, it places the

来源： https://stackoverflow.com/questions/56093682/how-to-force-a-midi-device-to-report-control-status

来源： https://stackoverflow.com/questions/2447292/diff-midi-files

来源： https://stackoverflow.com/questions/46165516/pygame-midi-function-for-just-key-down-or-key-up-rather-than-midiin

来源： https://stackoverflow.com/questions/46165516/pygame-midi-function-for-just-key-down-or-key-up-rather-than-midiin

来源： https://stackoverflow.com/questions/46165516/pygame-midi-function-for-just-key-down-or-key-up-rather-than-midiin