This page opens with the Deep voice: your pitch goes down 5 semitones and your formants down 3. Record a few words or upload a clip, and it plays back lower at once.
Pitch and formants, separately
Your voice has two parts that a naive pitch shifter moves together:
- Pitch is the note your vocal cords vibrate at. Lowering it makes the voice deeper.
- Formants are the peaks your throat and mouth add on top. Their position tells a listener how big the speaker is.
Slow down a recording and both drop by the same amount, which is why it sounds like a tape running down, not like a different person. A genuinely deeper voice mostly has lower notes, with formants only a little lower. That is what the Deep preset does: pitch down 5 semitones (a fall of about 25 percent in frequency), formants down 3.
Tuning it
Open Fine-tune:
- Pitch −3 to −4, formant −1 to −2: a slightly deeper version of you, the subtle choice for voiceovers.
- Pitch −5, formant −3 (this preset): clearly deeper, still natural.
- Pitch −7 to −9, formant −4 to −6: the big villain or trailer voice. Add a touch of Reverb for space.
Keep the formant shift smaller than the pitch shift for a believable voice. Setting them equal gives the slowed-tape sound; moving the formants further than the pitch makes the voice sound muffled.
Getting a clean result
Deep settings bring out room noise and mouth sounds, so record in a quiet room with the microphone close. Speak at your normal speed: the tool keeps the timing, so there is no need to talk fast to compensate. If the result sounds boomy, raise Volume a little rather than pushing the pitch further.
Download it as WAV or MP3, or compare it with the Monster and Lower voice buttons above, on the same recording.
The settings on this page
pitch -5 · formant -3. Every setting can be changed under Fine-tune; the page only chooses where it starts.