The Yamaha Motif Rack XS, for example, is one of the MIDI sound modules that possesses an audio output feature. Many MIDI sound modules also serve as an output device, which is to say that they can then produce the digital signals as audible sound. Often small and portable, MIDI sound modules serve as a sound bank which receives the signals your MIDI keyboard send out and converts that input into digital signals. There are a few options and alternatives at your disposal: If you’re feeling the need to practice or fiddle around with your MIDI keyboard, but aren’t willing or are unable to connect it to your PC, you’re in luck. With that being said, a MIDI keyboard must be connected to something that is capable of processing and producing audio, as MIDI keyboards themselves do not produce sound, but instead purely creates MIDI signals that they then send to a connected device, which then translates those signals into sound. So, do you need a computer to use a MIDI keyboard? No, a personal computer is not a necessity for playing and practising on a MIDI keyboard. As a result, there are plenty of people who wish to utilize their MIDI keyboard without the hassle of booting up their computer. Electronically crafted audioscapes and music have been rising steadily in popularity over the years, and many artists consider the MIDI keyboard to be an instrumental tool in their kit.