The composition methods of professional audio mainly include the following synthesis methods :
Subtractive synthesis : New sounds are formed by removing certain frequencies from complex waveforms, suitable for analog synthesizers .
Additive synthesis : Complex sounds are formed by superimposing multiple simple waveforms, often used to create rich timbres .
FM synthesis : New sounds are generated by modulating the frequency of a waveform, often used to simulate metal timbres .
Sample synthesis : Audio generation using recorded sound samples, widely used in digital audio workstations (DAWs) .
The specific steps of audio synthesis include :
Select waveform : Select basic waveforms such as sine waves, square waves, sawtooth waves, and triangle waves as needed .
Adjust pitch : Adjust pitch by changing frequency .
Apply filter : Remove or enhance specific frequencies to shape timbre .
Modulate parameters : Dynamically adjust audio signals using low-frequency oscillators (LFOs) or envelope generators .
Adding effects: Use effects such as reverb and delay to enhance the sound quality.
Audio synthesis has a wide range of applications, including:
Music production: Provides support for styles such as electronic music, pop music, and experimental music.
Film soundtracks: Can simulate the sound of traditional instruments and create surreal sound effects.
Game sound effects: Enhance the player's immersive experience, and real-time synthesized sounds enhance the sense of interaction.
Advertising and multimedia projects: Unique synthesized sound effects and background music attract the audience's attention and enhance the brand image.