AudioStack

AudioStack is an agentic audio production platform for agencies, publishers and platforms. Type a brief in the console or call the render API, and it returns broadcast-ready ads, narration or long-form audio, drawing on voices and sonic assets from 17 model providers rather than a single in-house engine.

AudioStack is an audio production platform built for teams that need finished, broadcast-grade sound at volume rather than one-off studio sessions. A brief or a block of raw text goes in, and the system returns a rendered audio asset: a radio spot, an ad variant, a narration, or a long-form piece. The company positions the product as an agentic production layer, meaning the platform handles the assembly work of voice, music and sound design rather than asking a person to stitch stems together by hand. Reference customers on the homepage include Omnicom Media Group, Publicis, Dentsu, Bloomberg, Prisa, Acast and PocketFM, which suggests the tool is aimed at media organisations and advertising businesses more than at solo musicians. There are two ways to work with it. The self-serve console at app.audiostack.ai lets a team member type a campaign brief and generate a finished asset without engineering help. InstantCreative covers short-form work such as radio spots, while DynamicCreative takes a single creative and expands it into thousands of personalised variants delivered through one VAST tag. The embedded route is an API: a render call passes a brief, voice and duration and returns white-labelled audio inside the customer's own product. CreativeEngine is the general embedded engine and StoryEngine handles long-form material, converting raw text into serialised audio such as fiction or audiobooks. Published case studies describe a Spanish radio sales operation, a US retailer that produced over 1,500 hyperlocal ads in three days, and serialised fiction at PocketFM. Practically, the platform is a router as much as a generator. It does not train its own voice models; it orchestrates providers including ElevenLabs, OpenAI, Google, Microsoft Azure, Amazon Polly, Cartesia, Inworld, MiniMax, Resemble and WellSaid Labs, and the homepage puts the catalogue at thousands of voices and more than 1,000 sonic assets across 17 providers. The claimed benefit is availability and fit: pick the voice that suits the script instead of being locked to one vendor. Buyers comparing this with a raw text-to-speech API should understand that the value sits in orchestration, templating and scale, not in a proprietary model. Teams that fit best are agencies running many localised campaigns, adtech platforms adding audio inventory, publishers chasing faster time to first play, and video producers who need a scalable audio layer. A single podcaster or a musician writing original scores will find the product oriented elsewhere. Pricing is not published on the homepage, so commercial terms have to come from a demo conversation.