DSP Audio Analytics Engineer
2 weeks ago
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 (90-120 min) around Acoustic event design, Thresholds & zone gating, Sensor fusion windowing, Mic placement & future TDOA and Edge deployment
· Take-Home (<
6hours, due in 48h)
Next steps: If interested please email your cover letter and resume to
Ashwin at ashwin.jaiswal@safespaceglobal.ai
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Hyderabad, India SafeSpace Global Full timeLocation: 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 -...
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Hyderabad, India SafeSpace Global Full timeLocation: Hyderabad, IndiaAbout the engagementOur 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...
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