Angelica’s Voice Changer
I also built a voice changer, which was a kit from Apogee Kits. The major pieces of the voice changer are the 2 chips. The larger chip in the circuit is HT8950. It shifts the frequency of an input voice, ultimately producing a dramatic output voice. Our voice has a specific frequency range. This voice changer has a robotic voice, high pitch voice, low pitch voice, and a vibrator voice. The smaller chip in the circuit is LM386N. It consists of a low voltage audio power amplifier. It is regularly used with battery- powered devices. A minor piece of the circuit is the vertical trimmer, which is a resistor. It serves as an adjustable volume. Another minor piece is the horizontal trimmer. It serves to adjust to the sensitivity of the microphone.