Understanding MIDI – MIDI ports and channels of General MIDI standard

In a previous article I wrote about the basic definition MIDI (Musical Instrument Digital Interface) and that modern musicians can use their own independent productions. I will write about the technical side of MIDI time, including MIDI ports available MIDI channels and how to use them, and General MIDI standard that allows MIDI files can be read consistently different MIDI-enabled devices (hardware and software).

MIDI ports

Like other technologies related to audio or music, you have a MIDI IN and OUT ports. To explain the use of the two ports allows use of an example of a MIDI keyboard and the computer (in this case, the MIDI USB transceiver to the computer). The MIDI OUT port on the keyboard is connected to MIDI IN port on your computer. This means that the keyboard is played or recorded MIDI data inside the computer. Conversely, the MIDI IN port on the keyboard can be connected to the MIDI OUT port on the computer, allowing the recorded MIDI data inside the computer to be sent to the keyboard in order to return to the keyboard to play MIDI data (this means you can you play, change the MIDI data from a music software, then play the keyboard and record the sound from the keyboard performance is better edited).

In addition to MIDI IN and OUT, MIDI THRU port is a sometimes a MIDI device. MIDI THRU function is passed on to the MIDI data received from the MIDI IN port of another MIDI instrument or device. Take, for example, the keyboard receives MIDI data from a computer inside the MIDI IN port. If the keyboard MIDI THRU port, you can continue to use that data to the computer to another MIDI instrument MIDI IN port. This is useful chain multiple MIDI devices with a MIDI OUT port receives data from the computer (for example, to play a variety of string sounds more string parts for different keyboard).

The latter technology, the keyboard can be connected directly to a computer via USB connection without a USB MIDI converter. The downside is that it limits the ability to chain together multiple MIDI devices.

MIDI channels

There are 16 MIDI channels from one MIDI port. This means that any MIDI port to send and receive 16-channel MIDI data. Each MIDI channel contains all information about a MIDI track. For example, if the track 1 Acoustic Piano and MIDI Channel 1 contains a note pitch, note length, maintain, and other performance data should play a sound source. The sound is determined by the player inside the Bank and Patch MIDI channel number. For example, General MIDI standard, always acoustic piano Patch # 1 and acoustic guitar (nylon) # 25 There are still improvements to 128 overall.

After the 16 MIDI channels per port allows you to construct a song using 16 different parts. For example, you can use the channel 1, the passage of a saxophone sound (patch # 65 Soprano Sax) to create part of the comp a piano (Patch # 5 Electric Piano 1) and set up the rhythm section to bass (Patch # 34 Electric Bass finger ) and drum (channel MIDI channel 10 is reserved for that particular play percussion sounds, regardless of the patch can be programmed). If you need more channels, you need more, MIDI ports!

General MIDI (GM) standard

The GM standard use of the standard in order to be able to play MIDI files consistently different MIDI devices. We mentioned above about Patch numbers and MIDI channels. Patch These figures include the type of audio to be played back (# 1 Acoustic Piano). In order to allow another device to understand that the MIDI channels 1 MIDI data to a piano sound, use the GM-norm and confirms that the Patch # 1 with a piano sound (it will then call the own version of the piano, sometimes it can be easier or better-sounding surround sound, depending on the internal synthesizer used to play the MIDI data). Most of the software keyboard and MIDI data is saved when you save the GM-norm. I hope this article will be helpful for you to further your understanding of modern digital music technologies. In order for the musical success.

Source by Endy Daniyanto

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