Connect your sound module. If the audio module does not have built-in speakers, you need to find some speakers with compatible inputs to be able to hear the sound. A basic audio module set will include the audio module, a pair of headphones or a speaker, and a power cord.
Play your audio module. Often sound modules are keyboards or other objects with keys such as a piano. Other audio modules have their own unique key layout.
Change the sounds. Many audio modules offer multiple sounds that can be changed using a switch or a selection menu. On a Yamaha Portatone keyboard, the sound selection is made using a selection menu of instruments that coincide with numbers. When an instrument number is entered in the menu with the numeric keypad on the port, the sound comes up.
Thinking about the settings. Many audio modules offer options that allow you to fine-tune the sound, add reverb, or change the way the keys work. Some sound modules have a built-in rhythm and drum pieces, ready-made songs and the ability to record, while other sound modules are very simple and even lack a headphone jack.
Install your digital MIDI sequencing equipment and drivers, and make sure it is properly detected by your MIDI sequencing program.
Connect your MIDI-compatible keyboard to your digital MIDI interface (Midi to USB or Firewire, like TASCAM US-122) with a pair of MIDI cables. The MIDI inputs on a keyboard are often located in the back, but check your manual to see if the keyboard has a guide on how to use your MIDI inputs.
Boot your MIDI control software (Reason, Pro Tools). If the digital MIDI interface is properly installed, your MIDI software should locate it and allow you to connect to the audio module. If the program does not automatically detect the keyboard on your MIDI interface, see References below to install or specify audio and MIDI devices.
Choose your sound. Often a computer MIDI software controller does not play a standard sound. To hear sound from the keyboard via the computer, you must set a sound for the software to play.
Record your MIDI sequence. Most MIDI control software allows you to record the sequence that you play when you play it. This is an entertaining feature because it allows you to play the notes and timing you played, but with different sounds. Try recording a song and playing it with a different sound than the one you recorded.
Tips and warnings
An audio module is an electronic musical instrument that is often played by an external device, usually a standard piano-type electronic keyboard. Audio modules are often controlled with MIDI and sometimes require external speakers for audio output. Standard audio modules include drum machines and keyboards, some with MIDI inputs and outputs that allow them to be controlled and sequenced by an external MIDI controller.