midi

问题 I'm trying to dynamically generate a small MP4 audio+video file directly from my Android app. My original plan of attack: The user enters some basic song data (a chord progression, etc) and the app builds a MIDI file. The system builds chord diagrams for each chord, and using a MIDI reader it generates the animations frames array that is timed to the MIDI Convert the MIDI into a raw PCM audio data <-- this S.O. question is specific to this point Apply the raw audio to the animation frames -

问题 What is the formula for timestamp in second? The tick is actually a timestamp From Midi DumpSequence: tick 0: Set Tempo: 88.0 bpm tick 0: Time Signature: 4/4, MIDI clocks per metronome tick: 24, 1/32 per 24 MIDI clocks: 8 tick 0: Sequence/Track Name: tick 0: Sysex message: F0 7E 7F 09 01 F7 tick 480: Sysex message: F0 43 10 4C 00 00 7E 00 F7 tick 600: Sysex message: F0 43 10 4C 02 01 40 03 00 F7 tick 602: Sysex message: F0 43 10 4C 02 01 5A 01 F7 tick 604: ch01 tick 606: ch01 tick 608: ch01

问题 I have a java program set up that takes MIDI input from a controller and ideally does different things (not necessarily related to playing synthesizer output) depending on which midi note is sent. My code is heavily based on the code in this SO question: Java getting input from MIDI keyboard, specifically I'm using the entire MidiInputReceiver class. I've modified it to do System.out.println(msg) as well as printing "MIDI received, and it appears to work in as far as every time I press a key

问题 Hi i'm using javax midi lib with Android and it works very well handling midi messages, but when i open and try to play a midi file it does not perform any sound. I've verified all this steps: No exception handling the midi file. Previously i've got play the midi file with winamp and with a DAW. I've placed soundbank.gm to directory C:\Program Files\Java\jdk1.7.0_45\lib\audio and C:\Program Files (x86)\Java\jre1.8.0_66\lib\audio I've got play it successfully with MediaPlayer class My code:

问题 I am using OSC to feed into MIDI - so the many OSC controller apps can be used on standard MIDI kit. Just for 'proof of concept' I used this format:- /midi/note_on/<note-number> /midi/note_off/<note-number> /midi/control_change/<control>/<value> etc... Now it seems to be doable... is there already a standard I could steal for this? If not, I am happy to define one ;) Background: I am doing some WIFI OSC/MIDI stuff... A pyton script to act as MIDI WiFi server to receive midi/osc over IP (but

问题 I'm trying to read a MIDI file and then convert each note (midi number) to a simulated keypress on the keyboard (A,f,h,J,t...). I'm able to read any MIDI file with the python-midi library like this: pattern = midi.read_midifile("example.mid") and I can also simulate keypresses with pywin32 like this: shell = win32com.client.Dispatch("WScript.Shell") shell.SendKeys(key) But I have no idea on how to actually convert midi numbers (that are in midi files) to keypresses. To be more precise I'm

问题 Hi I Have some problems finding the right information about this and would be glad if someone could point me in the right direction. How do you code a midifile? e.g. how can I write a snippet that plays a random tone for 1 second. Basically what I would need to get done is representing differnet midi melodys as vectors of some sort? How can I do this.. 回答1: You could also read up on the MIDI file spec (quick search turned up this) and generate the file yourself. Using a library is probably

问题 I am trying to analyse MIDI files using a toolkit python-midi for python (link to the repo). Basically, my question is about the interpretation of the data I just extracted. Here is the data: mididump.py HHOP-Drums.mid midi.Pattern(format=0, resolution=96, tracks=\ [midi.Track(\ [midi.TrackNameEvent(tick=0, text='HHOP-Drums\x00', data=[72, 72, 79, 80, 45, 68, 114, 117, 109, 115, 0]), midi.TimeSignatureEvent(tick=0, data=[4, 2, 36, 8]), midi.NoteOnEvent(tick=0, channel=0, data=[60, 125]), midi

问题 Does anyone have any guidance or recommendations for writing a MIDI-based application in C# Winforms? I have recently bought a new effects pedal that has a full MIDI implementation (or so I'm led to believe) but the manufacturers have seen fit to not release a librarian / patch editing application. I have virtually no experience of MIDI beyond plugging a keyboard into another MIDI device, but it can't be that hard, right? ;-) Thanks in advance. 回答1: check out this links, this is maybe what

问题 The soundbank of the default synthesizer I'm using contains a variety of different instruments. For example, this code snippet... Synthesizer synthesizer = MidiSystem.getSynthesizer(); synthesizer.open(); Instrument instruments = synthesizer.getDefaultSoundbank().getInstruments(); for (Instrument i : instruments) System.out.println(i); ... prints the following: Instrument: Piano 1 bank #0 preset #0 Instrument: Piano 2 bank #0 preset #1 [...] Instrument: Applause bank #0 preset #126 Instrument