Like Bitspeek, it specializes in early digital speech synthesis. You type in lyrics and play them via MIDI.
If you want the exact mathematical process Bitspeek uses, these open-source tools are your best bet. bitspeek free alternative
If you are using Bitspeek to create robotic vocal lines from scratch, Alter/Ego’s "Bones" or "Marie Ork" voicebanks can provide that same haunting, synthetic edge for free. 3. Kerovee (The "Lo-Fi Autotune" Approach) Like Bitspeek, it specializes in early digital speech
While Bitspeek processes incoming audio, Alter/Ego is a free real-time singing synthesizer. bitspeek free alternative