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Why do the voices sometimes sound unnatural or robotic?
Why do the voices sometimes sound unnatural or robotic?

Characters don't sound like the real person

Updated over a month ago

Voices AI aims for perfection, but it’s essential to understand that the voices are AI-generated and might not be a replica of real-life personalities. Here's a breakdown of the reasons:

1. Data and Training Models

AI-generated voices, particularly those from text-to-speech (TTS) systems, are built using large amounts of audio data from real people. However, no matter how much data is used, our AI models may still struggle to fully replicate the nuances of human speech. Real-life voices have a level of variability and subtlety (like tone, pacing, and emotion) that current AI systems have difficulty capturing perfectly. The data used to train these systems, while diverse, can't always account for every vocal quirk or the range of human expression.

2. Accent and Pronunciation Challenges

Human speech varies greatly across languages, accents, and dialects. AI models may struggle to accurately replicate these variations, leading to speech that sounds unnatural or overly standardized.

3. Complexity of Human Voice

The human voice is incredibly complex. It involves hundreds of tiny, precise movements of the vocal cords, tongue, lips, and more. These movements are often subconscious and vary from person to person. AI-generated voices, even the most sophisticated ones, don’t replicate this level of complexity.

Voices AI is working on making AI voices more natural by incorporating emotional expression, better training data, and more sophisticated synthesis techniques. However, achieving perfect results remains a challenge due to the complexity of human speech.

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