Making a program to convert audio to music requires a very complex process and requires advanced programming knowledge. However, I can explain the basic steps first.
Record your audio: As a first step, record your voice with a microphone or recorder. This recording will later be converted into a music track.
Process the audio file: Next, process the audio file using an audio editing software. These software are used to reduce noise, adjust intonation and make other edits. Popular audio editing software include Audacity, Adobe Audition and Logic Pro X.
Convert to MIDI format: Next, use software to convert the audio file to MIDI format. MIDI format is a standardized format that stores musical notes in a digital format. Converting the audio file to MIDI format is used to automatically detect and convert the notes into musical notes.
Process the MIDI file: Process the MIDI file using a music editing software. These software allow you to edit the notes in the MIDI file, adjust tempo and intonation, and make other edits. Popular music editing software includes Ableton Live, FL Studio and Logic Pro X.
Output the music: As a final step, output the music in a digital format. MP3 or WAV format allows you to save the music as an audio file.
The above steps provide a basic way to convert audio to music, but this process is quite complex and requires advanced programming knowledge. For this reason, many people prefer to use a ready-made audio conversion software that can do this process automatically. Popular audio conversion software include AmazingMIDI, WIDI Recognition System and Melodyne.