A synthesizer is a electronic musical instrument which generates sound by the combination of various signal processing techniques. It is used mainly for music production and sound engineering. It can be a synthesizer or a mixer. Synthesizers produce sound through different methods like additive synthesis, subtractive synthesis, and wave-shaping synthesis.
The analog synthesizers make a'real' sound by using an analog computer or a microprocessor. They are also known as 'analog synths'. The most popular analog synthesizers are the modular synthesizers. These are great for beginning users as they are easy to use and require less programming knowledge. However, the drawback with these is that sounds may not have the desired octave or tone.
A digital synthesizer uses computer software to control the operational parameters of the instrument. These parameters are usually controlled via an external hardware device such as an external keyboard or other digital instruments. Digital sound synthesizers are useful for creating complex beats and other musical creations. The software can be used to create sounds like vocals, chords, and textures. Most synthesizer manufacturers offer sound design tools for the users to enhance their creations.
An analogue synthesizer creates sound through digital signals. The hardware of the synthesizer is based on analog computers and functions using the same technology. There are many users who prefer using an analogue synthesizer because they are known for their rich sounds and quality. The main drawback of using an analogue synthesizer is that sounds tend to become repetitive and dull. However, they are also known for their flexibility and are capable of producing sounds in different octaves.
Computer-based synthesizers are the latest type of synthesizers, which allow users to see how a digital instrument looks like. These instruments are compatible with most computer programs and can be used with keyboards, virtual synthesizers, and sequencing programs. Computer-based synthesizers use software that runs on a computer to produce sound.
A keyboard controller, as mentioned earlier, is the key to a great sounding synthesizer. There are four types of keyboards: hardware controllers, computer-based keyboards (also known as digital keyboards), virtual keyboards (or 'digital outboards'), and software synthesizers. A hardware controller is a part that can be seen and played by the user. The most common hardware keyboards are made by Yamaha, Roland, Apple, and elsewhere. Computer-based synthesizers work with computer programs and are generally cheaper. Virtual synthesizers, however, are much less expensive than the latter two because they are easier to use.
In addition, there are other types of synthesis tools. One example is the sample and master tape, which is a type of digital synthesizer. This tool works by loading an existing file (the "sound") into the digital synthesizer and then editing the sound by modifying it digitally. Of course, this type of digital synthesizer needs an external input device such as a microphone or some other type of input device.
Another form of synthesizer that is popular in today's world is analog synthesis. Analog synthesizers use the physical process of converting an analog signal into a digital signal. analog synthesizers reproduce sound using the physical properties of an analog signal such as high notes and low notes. Although you cannot hear the actual sound produced by analog synthesizers, you can actually hear an analog signal being processed through a filter. Many musicians who are starting out with digital instruments find that analog synthesis is more musical, and easier to use, than digital synthesizers. If you are interested in purchasing an analog instrument, it is a good idea to do some research online to find out what brands and models are currently popular.