Voice Playground

The Voice Playground lets you audition scripts—podcasts, ads, book passages—without changing your live settings until you decide.

What it is

The Voice Playground is a safe sandbox where you can audition scripts, tweak settings, and generate MP3 samples—all without changing your live call settings.

What you can do

• Load up to 5,000 characters. Paste any text for instant playback.

• Tweak voice settings on the fly. Stability, Similarity, Speed appear in the Generate tab. See here for an explanation of what these sliders do.

• Switch models quickly. Try Default vs. Accents 1 / 2 for side-by-side comparison. See here for an explanation of what this means.

• Generate unlimited samples. Each click delivers a fresh take, even with identical settings. It's just like how typing the same message into ChatGPT will generate a new answer every time.

• Download as MP3. Keep clips for podcast inserts or marketing teasers.

• Apply settings to Delphi. Happy with a sample? One click makes those settings global.

• View History. See every sample, its exact settings, and play, archive, rename, or delete.

✅ Tip: Use Playground for quick trials, but always finish with a live call to confirm how users will hear the voice in real time.

Play with your Delphi's voice here →

Go to the voice playground page if you're wondering...

• How do I hear a quick sample of my Delphi’s voice?

• Where can I paste a script and download an MP3 spoken by my Delphi?

• How do I compare voice settings quickly to determine which I should use?

• How do I save a voice settings take and make those settings global?

• Where can I find or rename past samples I've made in the voice playground?

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✏️ How to use the voice playground

1

Open Voice Playground on the Voice page.

2

In Generate, paste or type your script.

3

Adjust sliders or choose a Voice Model.

4

Click Generate; audio auto-plays in a black box.

5

Inside the box, choose:

• Download (⬇︎) to download an MP3.

• Apply settings to my Delphi to make them live.

• X out (✖︎) or Close to discard.

6

Switch to History for past work:

• Click any sample card to drop down its exact Stability, Similarity, and Speed.

• Rename — hit three dots (⋯) ➞ Rename, type a new title, then Rename. Wait for the green check in the bottom right corner.

• Archive — three dots (⋯) ➞ Archive ➞ confirm Archive. Wait for the green check in the bottom right corner.

• Replay — press play (▶️); the black box re-appears for listening.

• Download that sample.

• Cross-tab shortcut: keep the black box open, switch back to Generate, and you can still hit Apply settings to my Delphi.

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❓FAQs / Troubleshooting

Why does my voice sound different on a live call versus the Playground or Read Aloud?

Playground clips are “experimental,” rendered offline and a bit slower, so they can use looser settings that change each time. Calls must stream in real time, so Delphi adds extra stability for speed and consistency.

To hear the truest result, tweak settings and then start a live call. Use Playground only for creative reads, ads, or long scripts.

Why does the Playground and the Read Aloud function generate a slightly different take every time?

The reason the Playground and Read Aloud functions generate a slightly different take every time, even if the settings are the same, is that both run on generative AI text-to-speech technology. Each time you click Generate or Read Aloud, Delphi samples tiny shifts in pitch, timing, and energy—like rolling fresh dice inside the same rules. That touch of randomness keeps the voice from sounding canned, but it also means no two clips are identical.

To widen the picture, this is how generative AI works for all AI platforms! It's the reason that ChatGPT won't give you the same answer to one question asked twice.