Original sentence: Synthesizers are typically controlled with a piano-style keyboard.Synthesizers became more popular in the 1970s and 1980s, when they became easier to use and more affordable.Synthesizers can produce a wide range of sounds, which can either imitate other instruments or generate unusual new timbres.Synthesizers create electrical signals, rather than direct acoustic sounds, which are then amplified through a loudspeaker or set of headphones
Edited sentence: Synthesizers are commonly equipped with a piano-style keyboard.Synthesizers create electrical signals, rather than direct acoustic sounds, which are then processed through a loudspeaker or set of headphones.Synthesizers gained widespread popularity during the 1970s and 1980s, when they became easier to use and more affordable.Today, synthesizers are used extensively by many renowned music artists.Unlike other instruments, a synthesizer can produce a wide range of sounds, which can either imitate other instruments or generate new timbres