Custom speech-to-text & ASR on Whisper Large-v3, Deepgram Nova-3 (~150ms streaming, WER 6%), Speechmatics, AssemblyAI Universal, NVIDIA Parakeet, faster-whisper, and WhisperKit on-device. Speaker diarization (pyannote), custom vocab and pronunciation lexicons, 50+ languages, sub-300ms first partial. Same team behind TransLinguist (62 languages, NHS UK, $4.2M ARR), Nucleus AI phone agents (Fibernetics, 600M+ minutes/month, SOC 2 Type II / HIPAA / GDPR). 625+ real-time products since 2005.
We build custom speech-to-text systems on top of named engines: Whisper Large-v3 / Whisper-Turbo, Deepgram Nova-3 (~150ms streaming, WER 6% on telephony), Speechmatics, AssemblyAI Universal, Google Speech v2, Microsoft Speech, NVIDIA Parakeet, and self-hosted faster-whisper. For on-device we ship WhisperKit (iOS / Apple Silicon), MLC Whisper (Android), or Vosk (embedded / IoT). Add speaker diarization (pyannote 3.1), custom pronunciation lexicons, jargon biasing, profanity filtering, and SOC 2 / HIPAA / GDPR compliance — served as REST batch or WebSocket / gRPC streaming. No matter the size or complexity of your project, we'll take it on and get it done — no excuses, no generic limitations.
Generic STT struggles with accents, background noise, and industry jargon. We fine-tune Whisper Large-v3, NVIDIA Parakeet TDT, or faster-whisper on your real audio with NeMo / SpeechBrain pipelines, push WER from 18% to under 7%, and keep models on your infra.
WebSocket / gRPC streaming with Deepgram Nova-3 (~150ms first partial), AssemblyAI Universal, or self-hosted faster-whisper-server. Batch REST for thousands of hours overnight via Whisper Large-v3 sharded across A10 / L4 GPUs.
Speaker diarization with pyannote 3.1 or NeMo, custom pronunciation lexicons and keyword biasing, RNNoise / DeepFilterNet noise reduction, profanity / PII redaction, on-prem deployment for SOC 2 / HIPAA / GDPR.
Custom STT & ASR for every case — contact-centre IVR (Deepgram + Twilio Voice), telemedicine scribe (Whisper + AWS HealthScribe), live captions (AssemblyAI streaming), audiobook & podcast batch, on-device dictation (WhisperKit). Secure, scalable, GDPR / HIPAA / SOC 2.
![[background image] image of logistics control room (for a trucking company)](https://cdn.prod.website-files.com/64e8910adc5a63966a68acc1/68e7dfd17638aaf511162f7a_f841ed23dc31eb8a94e23195c64f4acb_develop.webp)
Have an STT idea? We turn it into a working system — from engine selection (Whisper / Deepgram / Speechmatics) and acoustic model fine-tuning to streaming gateway, diarization, and on-device fallback.
Existing transcription too slow or inaccurate? We swap engines (e.g. Whisper-server → Deepgram Nova-3 for sub-150ms), add custom vocab biasing, and tune diarization — typically WER drop from 15% to under 7%.
![[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 stalled Whisper / Vosk / Kaldi pipeline? We step in, fix the dataset, retrain on real audio, repair the streaming gateway, add GPU autoscaling, and bring it back to production.
Startup 💡
MVPs and early-stage products. Off-the-shelf engine (Whisper-Turbo or Deepgram Nova-3), basic API, custom vocabulary, single-language tuning.
~$13,000
from 2 months
Growth 🚀
Production STT with Whisper Large-v3 fine-tuning or Deepgram Nova-3 streaming, speaker diarization (pyannote 3.1), custom vocab boost, multi-language support, telemetry.
~$26,000
from 4 months
Enterprise 🏢
Enterprise ASR platform on-prem (faster-whisper / NeMo Parakeet on A10 / L4 GPUs), custom acoustic + language models, PII redaction, audit logs, SOC 2 Type II / HIPAA / GDPR / FERPA hardening.
~$45,000
from 6 months
625+ products since 2005, including TransLinguist (62 languages, NHS UK, $4.2M ARR), Nucleus AI phone agents (Fibernetics, 600M+ minutes/month, SOC 2 Type II / HIPAA), and V.A.L.T police interview transcription (2,500-camera deployments). Whisper / Deepgram / Speechmatics / AssemblyAI / Parakeet — in production, not slideware.
Senior speech engineers, ML researchers (acoustic / language model fine-tuning), QA, UI/UX, and DevOps for GPU / on-prem deployments — all in-house, EU/UK timezone. We think like product owners, not just coders.
625+ shipped products, 100% Upwork Job Success, 400+ honest reviews, sub-300ms streaming first partial, signed audit logs, and SOC 2 Type II / HIPAA / GDPR / FERPA frameworks deployed in production.
Real talk on Whisper, Deepgram, Speechmatics, latency budgets, diarization and on-device — from the team that ships it.
Building ASR systems tailored to your data, language, and use case on top of named engines — Whisper Large-v3, Deepgram Nova-3, Speechmatics, AssemblyAI Universal, NVIDIA Parakeet, faster-whisper, or Vosk / WhisperKit on-device. Add custom vocabulary, accent tuning, speaker diarization (pyannote 3.1), and serve as REST batch or WebSocket / gRPC streaming — instead of stock SaaS.
Production benchmarks: Deepgram Nova-3 hits WER 6% on telephony out-of-the-box; fine-tuned Whisper Large-v3 reaches WER < 4% on clean studio audio with custom vocab biasing. Industry jargon (legal / medical / finance) drops error rate by 30–60% over generic engines.
Yes — sub-300ms first partial via Deepgram Nova-3 streaming, AssemblyAI Universal, or self-hosted faster-whisper-server. For voice agents we engineer the full STT → LLM → TTS loop under 800ms full reply. WebSocket and gRPC streaming, with partial / final results and word-level timestamps.
Yes — 50+ languages out-of-the-box (Whisper covers 99). Accent tuning via NeMo / SpeechBrain on your real audio. TransLinguist (NHS UK) ships 62 languages live with sub-1s end-to-end.
Yes. SOC 2 Type II / HIPAA / GDPR / FERPA frameworks deployed in production. Self-hosted faster-whisper / NeMo Parakeet on your infra (AWS / GCP / Azure / on-prem / air-gapped), PII redaction, audit logs, RBAC, encrypted at rest + in transit.
