DSP / Audio Analytics Consultant (Gunshot/Impact/Vape Fusion) — Part-Time

2 weeks ago

Hyderabad, Telangana, India Prime Verse Technologies Private Limited Full time ₹ 12,00,000 - ₹ 36,00,000 per year

Location
: Hyderabad, India

About the engagement

Our campuses include mics and vape sensors (bathrooms = audio/vape only, no video). We need an audio expert to deliver low-latency acoustic anomaly detection (gunshot/impact/shout) and to define sensor-fusion timing with optical events.

Time: 4–8 hrs/week (flex). Location: Remote.

What you'll do

* Select and adapt edge-friendly audio models for gunshot/impact/shout (Apache-friendly where possible) and define thresholds per zone.

* Engineer robust preprocessing: resampling, VAD, log-mel/spec features, clipping/AGC handling, channel calibration.

* Define ±Δt gating vs. optical events; handle device offsets and publish evidence (onset time, spectral signature).

* If applicable, design mic-array/TDOA roadmap (future): array geometry, beamforming options, calibration SOP.

* Build an evaluation set (curated clips + confusers) and scorecards; tune for low false alarms.

Must-have

* 5+ years DSP/audio ML (torchaudio/librosa), real-time classification on edge hardware.

* Model deployment experience (ONNX/TensorRT where relevant), streaming pipelines, latency profiling.

* Practical know-how with noisy environments (reverberation, HVAC, impulse sounds, crowd noise).

Nice-to-have

* Experience with public audio model families (e.g., PANNs-style architectures) and license vetting.

* Mic placement, array processing (GCC-PHAT, beamforming), AEC/denoise familiarity.

* Timeseries analytics (onset/peak detectors) and event synchronization.

Deliverables (first 4–6 weeks)

* Audio model + preprocessing config achieving target precision/recall on our clips; latency budget & CPU/GPU load report.

* Zone-wise threshold table, Δt gates, and privacy policy notes (bathroom handling).

* Test suite + confusion matrix and a simple monitoring dashboard for false-alarm drift.

Selection Criteria:

* Live/Whiteboard/IDE min) around Acoustic event design, Thresholds & zone gating, Sensor fusion windowing, Mic placement & future TDOA and Edge deployment

* Take-Home (< 6hours, due in 48h)

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