Hands-On with Gemini 3.1 Flash TTS: A Massive Leap in AI Voice Generation

product#voice📝 Blog|Analyzed: Apr 17, 2026 09:01
Published: Apr 17, 2026 08:30
1 min read
Zenn AI

Analysis

Google's latest preview of Gemini 3.1 Flash TTS is an absolute game-changer for audio synthesis, pushing the boundaries of what 生成AI can achieve. The introduction of over 200 intuitive 'audio tags' allows creators to seamlessly inject emotions like whispers, laughter, and sighs directly into text, making AI voices sound incredibly human. With support for 70+ languages and built-in security features like SynthID watermarking, this model is set to revolutionize podcasting, audiobook production, and accessibility tools.
Reference / Citation
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"2026年4月16日、Google Cloudから Gemini 3.1 Flash TTS のプレビュー版が公開されました。70を超える言語、30種類のプリセット音声、そして200以上の「オーディオタグ」 で囁き・叫び・笑い・ため息までテキストの中で自在に指示できるという、音声合成の世界をまた一段引き上げるモデルです。"
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Zenn AIApr 17, 2026 08:30
* Cited for critical analysis under Article 32.