Custom AI System Prompt for ChatGPT or Claude, Tested and Explained
Your AI assistant gets it right and wrong in the same answer. It forgets your rules two messages in, it invents facts about your company, it writes in a voice that is not...

You have the script. What you do not have is a voice for it.
A studio booking takes days, and one wrong sentence means booking the talent again. Here you get a finished, natural sounding voice track for your video, ad, course or podcast intro, ready to drop straight into your timeline.
This is an AI voice, not a human recording in a booth. I say that up front because it is the whole point. An AI voice comes back in two days instead of two weeks, a corrected line matches the rest of the track, and episode 12 sounds like episode 1, because the voice never has a cold and never has a bad day.
WHAT YOU GET
1. Up to 1000 words of your script, voiced. That is roughly 6 to 7 minutes of finished audio.
2. Your choice of a male or a female voice.
3. Your choice of tone: warm and friendly, calm and factual, upbeat and energetic, or serious and corporate.
4. English or German, each spoken by a voice built for that language.
5. Two files: an MP3 for quick use and an uncompressed WAV at 48 kHz for editing.
6. Ready to drop in: silence trimmed at both ends, and the loudness normalized to minus 16 LUFS, a common target for online video and podcast audio.
7. One revision, included, within 7 days of delivery.
HOW IT WORKS
Human with Machine. The machine produces the voice. Then a person listens to the complete take from start to finish, checks the pronunciation of every name, number and product term in your script, and only then approves delivery. Nothing reaches you that a human has not heard in full.
WHAT THE REVISION COVERS
Send me the lines you want changed here in the order, and I will record them again in the same voice and rebuild both files, so the correction blends into the rest of the track. Typical reasons: a name pronounced wrong, a sentence read too fast, a word you decided to change after hearing it out loud. A different script is a new order rather than a revision.
WHAT I NEED FROM YOU
1. Your script as plain text, up to 1000 words, in the exact wording you want spoken.
2. Language: English or German.
3. Voice: male or female.
4. Tone: warm, calm, upbeat or corporate.
5. Pronunciation notes for anything unusual: brand names, product names, abbreviations, foreign words. Write them out the way they should sound, for example Zylo as "zye low".
6. Whether numbers should be read as digits or as words.
If you leave the voice or the tone open, I will pick what fits the script and tell you what I picked.
DELIVERY
2 days. If you need it sooner, 24 hour delivery is available as an extra.
You can use the audio commercially in your own videos, ads, courses and podcasts.
SCOPE
Every voice here is a licensed synthetic voice. I do not clone or imitate the voice of a real person, and the script has to be yours to use. If your script runs longer than 1000 words, send it anyway and I will tell you before I start what the extra length costs, so the whole script gets spoken and the ending stays intact.
THE DEAL IN PLAIN NUMBERS
1000 words, 2 files, 2 days, 1 revision. Order it and hold me to exactly that.
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