How to Prepare Audio Files for AI Tools: The Ultimate Checklist

You’ve decided to use EchoAgain to preserve a loved one’s voice. You have your files. Now, how do you ensure the AI creates a model that sounds exactly like them?

The secret is in the preparation. AI learns from what you give it. If you give it clear, focused data, it will give you a clear, focused voice.

Here is your pre-flight checklist.

1. Quality Over Quantity

It’s better to have 5 minutes of crystal-clear audio than 5 hours of noisy audio.

Select the best clips. Choose recordings where the voice is isolated and distinct.
Avoid overlapping speech. If two people are talking at once, the AI will get confused.

2. Variety of Tone

Humans don't speak in a monotone. We whisper, we laugh, we shout, we get serious.

Try to include a mix of emotions.
Include some happy stories, some serious advice, and some casual chatter.
This helps the AI understand the full range of the person's personality.

3. Remove "Non-Speech" Sounds

While a laugh is nice, too much coughing, sneezing, or heavy breathing can confuse the model.

Trim out long coughs or sneezes.
Keep the natural breaths between sentences (this makes it sound human), but remove loud gasps.

Want to recreate a loved one’s voice?

EchoAgain helps you preserve and reconnect with the voices that matter most.

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4. The Format Check

Before you upload, double-check your file specs:

Format: WAV or MP3 (High Quality).
Size: Ensure individual files are under the upload limit (usually 20MB-50MB).
Length: Break very long files (1 hour+) into smaller chunks (10-15 minutes). This prevents upload timeouts and makes processing faster.