Landing Page Launch App Podcast Guide API & Params Voice & Audio Briefs FAQ

Listen Developer API & Audio Synthesis Parameters

Programmatically generate podcast feeds, fetch audio transcription payloads, or trigger text-to-speech rendering engines for your own content.

Endpoint Specification

POST https://api.productgrowth.in/v1/listen/synthesize
Headers:
  Authorization: Bearer YOUR_API_KEY
  Content-Type: application/json

Body:
{
  "text": "RBI has updated its circular on default loss guarantee...",
  "voice": "indian-male-premium",
  "speed": 1.1
}
    

Audio Synthesis Parameters

Customize the voice modulation, output bitrates, and language models for synthesized briefs. We support localized multi-lingual accents (Hindi, Hinglish, Tamil, Telugu, and Indian English).

Voice Codes

indian-english-female-1 (Default professional accent)
indian-english-male-1 (Deep baritone)
hinglish-conversational-2 (Bilingual local accent, perfect for fast-paced growth stories)

Product Guides & Audio Briefs

Learn what audio briefs you can synthesize and distribute:

Audio Briefs: Voice Formats and Audio Generation Guide: Synthesize daily news briefings, onboarding guides, and configure Hinglish/regional voice parameters.

Subscribe to the Product Growth Daily Brief

Get daily teardowns of Indian product design, growth stacks, conversion metrics, and compliance updates straight to your inbox.

Join 2,300+ Product Leaders →