Last updated 08-11-2026
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AudioStack
AudioStack turns a creative brief or block of raw text into finished radio spots, ads, and long-form audio without booking a studio. The company rebranded from Aflorithmic; the old domain still redirects to audiostack.ai. You can work in a self-serve console or embed the production engine through an API that returns white-labeled, broadcast-ready files.
Where most text-to-speech tools hand you a voice clip, AudioStack runs the full chain: script generation, voice casting across providers like ElevenLabs and OpenAI, music and SFX mixing, duration targeting for 6-second or 30-minute specs, mastering, and automated QA for loudness and brand rules. A case study on the site cites 1,500 hyperlocal ads produced in three days and a catalog of 2,600+ voices across 17 providers.
Agencies, ad-tech platforms, radio publishers, and audiobook producers are the core buyers. Products split between InstantCreative and DynamicCreative for self-serve campaign work and CreativeEngine and StoryEngine for API embedding inside other platforms.
Catalog of 2,600+ voices and 1,000+ sonic assets across 17 voice and music providers
Produces assets from 6-second spots to 30-minute long-form audio from the same brief
Orchestrates ElevenLabs, OpenAI, Google, Azure, Amazon Polly, and other TTS models in one pipeline
DynamicCreative outputs thousands of ad variants from one master asset with a single VAST tag
Automated QA checks loudness, duration, language, and brand rules before delivery
Self-serve console at app.audiostack.ai or embedded API via POST /v2/render
Handles scripting, casting, mixing, and mastering in one pipeline instead of stitching tools together.
Model-agnostic orchestration across 17 voice and music providers avoids vendor lock-in.
Both self-serve console and embeddable API fit agency and platform workflows.
No public pricing page; sales require booking a demo through the site.
Enterprise focus means it is overkill for casual podcasters who only need a single voice clip.
The stored aflorithmic.ai URL redirects to audiostack.ai, which can confuse first-time visitors.
What is AudioStack?
AudioStack is an audio production platform that converts briefs or raw content into broadcast-ready audio. It handles scripting, voice casting, mixing, mastering, and QA for ads, radio spots, and long-form content at scale.
How is AudioStack different from a TTS tool?
AudioStack orchestrates the full production chain rather than returning a single synthetic voice. It casts across multiple TTS providers, layers music and SFX, targets specific durations, and runs automated quality checks before delivery.
Which voice providers does AudioStack support?
AudioStack orchestrates models from ElevenLabs, OpenAI, Google, Microsoft Azure, Amazon Polly, Cartesia, MiniMax, Resemble, WellSaid Labs, and others. The platform selects the right voice per brief, brand, and market.
Does AudioStack offer an API?
Yes. AudioStack exposes a CreativeEngine API where a POST /v2/render call returns finished, white-labeled audio for embedding in your own product. StoryEngine handles long-form text-to-audio conversion through the same stack.
Who uses AudioStack?
AudioStack lists clients including Bloomberg, Publicis Groupe, Dentsu, Omnicom, Porsche, and PocketFM. Use cases span agencies, ad-tech platforms, radio publishers, and personalized audiobook production.
Is there a self-serve option for AudioStack?
Yes. Teams can log into app.audiostack.ai and produce audio from a typed brief without engineering work. InstantCreative covers brief-to-broadcast workflows, while DynamicCreative generates large variant sets from one master creative.