Question: Looking for a browser-based solution to create voiceovers for e-learning materials and online courses.

Narration Box is a full-featured text-to-speech tool that produces natural-sounding voiceovers in more than 140 languages and accents. It has a simple interface, a library of 700+ AI narrators, and fine-tuning controls for voice inflection, rate and pitch. It's geared for e-learning, product demos, audiobooks and commercials, and has various pricing tiers, including a free option.

Another good option is Acoust. It employs large language models to generate super-realistic AI voices in more than 200 voices and 30+ languages. Its controls let you fine-tune the voice, and its emotional range makes it good for e-learning and social content. It's got flexible pricing options, including a free tier, and prioritizes user privacy and data protection.

If you're on a tighter budget, Typecast offers an online AI voice generator that can turn text into speech with emotional expression. It's got a library of more than 400 voices and avatars, so it's good for fast turnaround times for polished audio and video. It supports seven languages, and there's a free tier, so it's good for content creators and businesses.