Before explaining this question, the small series first gives you the science of what is MIDI. The so-called MIDI is actually just a digital signal, a bit like the music we know. It is a good way to convey what time to play what tone, how long the sound to play, such as the role of the commander in our concert. It is a kind of information, not the real sound, it is a kind of digital instruction.
If you have any questions, you can visit: http://www.flstudiochina.com/faq/fl-midiinfor.html
Now let's see why we can't output midi information in FL studio.
In fact, we are not familiar with this software, some output when the operation did not understand the cause.
In the FL Studio Options menu, there is an option to "activate MIDI output" and if this option is not selected FL Studio will not output MIDI information. Furthermore, if you have a hardware source, and want this MIDI message to be output to this hardware source, you must select the "Activate MIDI output" checkbox at this point, otherwise FL studio will not output MIDI information to this hardware audio source. When you export MIDI information to a Microsoft GS Wave table synthesizer or a hard-wave table of a sound card, you must also activate it.
After doing this, we will be able to output MIDI information very well. Want to learn more about FL Studio Tutorials Welcome to the FL Studio Chinese site.
Why MIDI information cannot be output through FL studio