Speechgen

SpeechGen is an online text-to-speech platform that converts typed text into AI-generated speech using neural network synthesis. The service provides access to over 5,000 realistic voices supporting 150 languages and variants, with output delivered in MP3, WAV, or FLAC formats. Users can adjust speed, pitch, and volume, and apply SSML tags for fine-grained control over intonation, emphasis, and pauses between sentences or paragraphs. A free tier lets new users synthesize up to 1,000 characters with no watermark. The platform includes a REST API for integrating TTS into automated pipelines, a Python library for script-based workflows, and a WordPress plugin for direct site integration. Developers can process subtitle files directly, converting .srt or .ass subtitle text into dubbed voiceover audio. SpeechGen also provides audio-to-text transcription, including YouTube video transcription, and a video-to-text feature. A pay-as-you-go credit system replaces traditional subscriptions: users purchase credits upfront and spend them on synthesis or transcription minutes. Pricing tiers range from a 25,000-credit bundle (roughly 60 minutes of AI speech) to larger packs with volume discounts. The official site publishes a privacy policy page; no public SLA, specific data retention periods, or regulatory compliance certifications are documented in the evidence pack. Best-fit evaluation often centers on output formats, language coverage, API rate limits, and data-handling expectations for the intended workflow.