R&D

Time-series signal AI: STT, TTS, and anomaly detection

Audio & Signal AI Development

Turn sound and signal data into the language of AI

Audio & signal AI development is an R&D service that builds speech recognition (STT), speech synthesis (TTS), acoustic/vibration/sensor signal analysis, and anomaly detection systems using state-of-the-art models such as Whisper, wav2vec2, and VITS. TreeSoop’s POSTECH-trained signal processing and speech AI engineers deliver 95%+ Korean STT accuracy and sub-1ms real-time inference, with deployments across call centers, voice assistants, and smart factories — rated 4.92/5 on Wishket, Korea’s largest dev-outsourcing platform (top 0.1% partner).

Pain Points

Are you facing these challenges?

No way to predict equipment failures

Production lines stop without warning because equipment failures cannot be predicted in advance, while preventive-maintenance spending keeps running over budget.

Signal quality collapses in noisy environments

Signals captured in high-noise environments — factories, vehicles, outdoor settings — are low quality, and conventional analysis methods lose much of their accuracy.

No in-house time-series analysis expertise

Hiring specialists who understand both classical signal processing theory (FFT, wavelet transforms) and deep learning is extremely difficult.

Solutions

How we solve it

Predictive maintenance (PdM) systems

We analyze vibration, temperature, and current sensor data in real time to predict the remaining useful life of critical components — bearings, motors, pumps — and recommend the optimal maintenance window.

Deep-learning noise suppression

Spectral Subtraction and Deep Noise Suppression (DNS) models dramatically improve SNR, enabling reliable signal analysis even in noisy environments.

Anomaly detection

Autoencoder and LSTM models trained on normal operating patterns detect early warning signs in sensor data and send alerts before failures occur.

Speaker diarization and speech recognition

We separate individual speakers in multi-speaker audio and run per-speaker STT — powering automated meeting transcripts, call-center quality analysis, and more.

Process

How we work

Use Cases

Where it's put to work

Power Generation

Turbine anomaly detection system

Analyzed vibration signals from power-generation turbines to predict bearing damage and imbalance 3 weeks in advance

85% fewer unplanned shutdowns, 30% lower maintenance costs
Automotive

Vehicle noise quality inspection

An NVH inspection system that analyzes driving noise after assembly to automatically diagnose faulty components

60% shorter inspection time, 40% fewer post-shipment defect claims
Medical Devices

Heart-sound analysis AI

Deep-learning analysis of stethoscope audio to flag suspected cardiac conditions such as arrhythmia and valve disorders

93% agreement with specialist physicians
Results

Proven by the Numbers

95%

Anomaly detection accuracy

Validated in industrial field deployments

3 weeks

Advance failure prediction

Average prediction lead time

40dB

SNR improvement

Signal quality after noise suppression

1ms

Real-time latency

Inference latency on edge devices

Portfolio

Related Projects

FAQ

Frequently Asked Questions

Cost depends on (1) the signal types involved (speech, vibration, biosignals), (2) the number of sensors and sampling frequency, (3) whether real-time processing is required, (4) the scope of integration with existing systems (MES, SCADA), and (5) Korean STT quality requirements. TreeSoop provides a tailored quote within 24 hours of your initial consultation.
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