In the master's thesis, we focused on the creation of a multi-effect pedal for a trumpet, which includes various sound effects, such as wah, compressor, pitch-shifter, distortion, tremolo, chorus, delay, and reverb. The task involves both the programming of the microcontroller and the practical implementation. In addition, the thesis presents troubleshooting at the time of creation and measuring the sound volume of the trumpet.
A Teensy microcontroller in an Arduino environment was used as the main component of the multi-effect pedal. The individual effects were implemented using the Teensy Audio Library. The measurements were performed in an anechoic chamber at the Faculty of Electrical Engineering using the REW software.
The multi-effect pedal for the trumpet was successfully built, achieving acceptable sound quality and desired sound effects. A user interface was created that is easy to use, allows the storage of pre-set effect sets, and provides a convenient link between the user and the multi-effect while playing on stage.
This master's thesis shows that an effective multi-effect for the trumpet can be developed using the Teensy microcontroller and its sound extension (Audioshield). The product is useful for musicians who want to expand their sound spectrum, perform in a completely new light, and position themselves in a special place in the music scene by changing the sound of their instruments. Along with the process of developing the multi-effect, the thesis also presents suggestions for improving the product. The results of this master's thesis could be useful for the development of new sound effects for trumpets and other musical instruments and could be used in industry as well as for educational purposes.
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