From branded neural voices to full TTS APIs — we ship custom text-to-speech on ElevenLabs Turbo (~250ms first audio), Cartesia Sonic (~90ms first byte), OpenAI TTS, Coqui XTTS-v2, Tortoise, Bark, and Piper for on-device. Same team that shipped OpenAI-backed voice-to-voice for an NDA AI assistant, SIP/FreeSWITCH hospital phone interpreters, TransLinguist (62 languages, NHS UK, $4.2M ARR), and Nucleus AI phone agents at Fibernetics — 600M+ call minutes per month, SOC 2 Type II / HIPAA / GDPR. 625+ real-time products since 2005.
We build custom text-to-speech systems on neural engines — ElevenLabs and ElevenLabs Turbo for premium English + 32 languages, Cartesia Sonic for sub-100ms streaming, OpenAI TTS for low-friction integrations, and Coqui XTTS-v2, Tortoise, or Bark when the licence has to be self-hosted. For on-device (iOS, Android, embedded, IoT) we ship Piper or distilled XTTS that runs at <50ms RTF without a network. SSML, multi-language pronunciation dictionaries, voice cloning from 30s of audio, and integration with your existing Twilio / FreeSWITCH / SIP / WebRTC stack. No matter the size or complexity of the project, we'll take it on and get it done — no excuses, no generic limitations.
Modern neural TTS with natural rhythm, emotion, and clarity — ElevenLabs Turbo for premium English at ~250ms first audio, Cartesia Sonic for sub-100ms streaming, OpenAI TTS gpt-4o-mini-tts for low-latency assistants.
Branded voices trained on your audio samples — ElevenLabs Professional Voice Clone (PVC) from 30 minutes, Coqui XTTS-v2 zero-shot from 6 seconds, Tortoise for offline cloning when the licence has to be self-hosted.
Streaming, batch, and on-device. ElevenLabs / Cartesia for cloud-streaming, Piper or distilled XTTS for offline iOS, Android, embedded, and IoT — sub-50ms RTF without a network.
Custom TTS for every case — streaming voice agents, audiobook batch, IVR, accessibility, dubbing, and embedded on-device. ElevenLabs / Cartesia / OpenAI TTS / Coqui XTTS / Piper, with SSML, voice cloning, and 40+ languages.
![[background image] image of logistics control room (for a trucking company)](https://cdn.prod.website-files.com/64e8910adc5a63966a68acc1/68e7dfd17638aaf511162f7a_f841ed23dc31eb8a94e23195c64f4acb_develop.webp)
Have a TTS idea? We turn it into a working system — from voice selection (ElevenLabs / Cartesia / OpenAI TTS / Coqui XTTS) and SSML schema to backend, streaming gateway, and on-device runtime.
Got a TTS pipeline that's slow or expensive? We swap engines (e.g. OpenAI TTS → Cartesia Sonic for sub-100ms), add streaming, cache phonemes, and harden it for scale.
![[digital project] image of a showcased project (for a ai robotics and automation)](https://cdn.prod.website-files.com/64e8910adc5a63966a68acc1/68e7e04abb8f1a3770a8625e_fix.webp)
Inherited a half-baked Coqui or Tortoise build? We step in, clean the dataset, fix the alignment / vocoder, and bring it to production with proper voice cloning controls.
Startup 💡
Best for MVPs and early-stage products. We set up a neural TTS foundation with one or two natural voices, basic language support, and API integration.
~$13,000
from 2 months
Growth 🚀
Designed for growing apps and platforms that need better voice quality and scale. Custom-trained voices, multilingual support, and performance tuning.
~$26,000
from 4 months
Enterprise 🏢
Built for large-scale, mission-critical systems. Fully custom TTS engines with voice cloning, offline or on-device speech generation, enterprise-grade security, and tailored infrastructure.
~$45,000
from 6 months
625+ real-time voice and AI products since 2005 — ElevenLabs / Cartesia / OpenAI TTS / Coqui XTTS in production. TransLinguist (62 languages, NHS UK), Nucleus AI (600M+ minutes/month, SOC 2 Type II / HIPAA), V.A.L.T. (police video), Tradecaster (trader audio).
Senior speech engineers, ML researchers (TTS / vocoder / cloning), QA, UI/UX, and DevOps — all in-house, all on the EU/UK timezone. We think like product owners, not just coders.
625+ shipped products, 100% Upwork Job Success, 400+ honest reviews, sub-300ms first-audio voice agents, and HIPAA + GDPR + SOC 2 Type II frameworks deployed in production.
Real talk on neural TTS, voice cloning, latency budgets, on-device, and integration — from the team that ships it.
Building a TTS system tailored to your product on top of named engines — ElevenLabs Turbo, Cartesia Sonic, OpenAI TTS, Coqui XTTS-v2, Tortoise, or Piper for on-device — with custom voices, your pronunciation dictionaries, SSML controls, your latency budget, and your stack (Twilio / FreeSWITCH / SIP / WebRTC), instead of stock SaaS.
Yes. ElevenLabs Professional Voice Clone (PVC) from 30 minutes of recordings, ElevenLabs Instant Voice Clone from 1 minute, Coqui XTTS-v2 zero-shot from 6 seconds, or Tortoise / Bark when the licence has to be self-hosted. We handle consent, dataset cleaning, and watermark / anti-deepfake controls.
MOS 4.4+ on ElevenLabs v3 — often indistinguishable from real voices in blind tests. Latency: ElevenLabs Turbo ~250ms first audio, Cartesia Sonic ~90ms first byte, OpenAI gpt-4o-mini-tts ~300ms, Coqui XTTS-v2 ~400ms self-hosted on a single A10 GPU. For voice agents we engineer the full STT → LLM → TTS loop under 800ms full reply.
Yes. Piper for offline iOS, Android, embedded, and IoT — sub-50ms RTF on a Raspberry Pi 4, no network. We also ship distilled XTTS-v2 builds quantised to int8 for laptop / desktop. Used in classrooms, kiosks, vehicles, and air-gapped environments.
REST for batch (audiobooks, dubbing) and WebSocket / gRPC streaming for voice agents and IVR. Native SDKs for iOS (Swift), Android (Kotlin), Web (JS / WebAudio), backend (Python / Node). Drops straight into your Twilio Voice, FreeSWITCH, LiveKit Agents, OpenAI Realtime, or Pipecat pipeline.
