Stan Marsh AI voice generator & voice changer

About the Stan Marsh voice

Stan Marsh is one of the four main characters of South Park, the long-running animated comedy series created by Trey Parker and Matt Stone. A good-natured fourth grader, Stan is often the level-headed voice of reason among his friends Kyle, Cartman and Kenny, and he is voiced by Trey Parker. Stan has also appeared in the feature film South Park: Bigger, Longer & Uncut and in several South Park video games, so fans know him across television, cinema and gaming.

The voice is that of an ordinary, friendly kid: a mid-range, slightly nasal tone with a relaxed, conversational delivery. The pace is easygoing and fairly flat, which is part of the humor, and it rises into exasperation or disbelief when Stan reacts to something absurd. Expect casual, deadpan phrasing rather than dramatic or polished narration, with the occasional sigh or groan of frustration.

On voicechange.io you can record or upload speech and hear it converted into Stan's voice, type text and have it spoken as Stan, or create a song cover. The pitch is matched to the voice automatically, so you don't need to adjust it. For the best results, use clear audio with little background noise, and speak in a casual, relaxed, deadpan way, as if you're talking to your friends. Short, natural sentences tend to sound the most convincing.

Voice details

Tips for the best Stan Marsh result

This model is centred around 190 Hz. With auto pitch on, a typical deeper voice (around 120 Hz) is shifted about 8 semitones up, and a typical higher voice (around 210 Hz) isn't shifted, since it already fits. Gaps under 4 semitones are left alone, and shifts stop at one octave. If the result sounds strained, nudge the slider one or two steps back toward your own voice; for song covers, keep it at 0, +12 or −12 so the vocal stays in key. How pitch works.

• Record in a quiet room with no music in the background; noise is the main cause of robotic-sounding results.
• Perform the line the way Stan Marsh would say it. The model copies your timing and emotion, only the voice changes.
• For song covers, pick a track with one clear lead vocal and little reverb.

More recording tips →

This is a fan-made AI voice model. voicechange.io is not affiliated with or endorsed by Stan Marsh, the voice actors or the rights holders. Please label shared results as AI and don't use them to mislead anyone. Rights holders can request removal on the contact page.

Stan Marsh voice questions

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