Hyderabad, Telangana
Job Summary
Own the audio subsystem on ARM-based SoC platforms — kernel audio drivers, userspace audio frameworks, DSP offload and voice/audio processing pipelines for edge, enterprise and robotics devices.
Key Responsibilities
Bring up audio hardware paths — codecs, amplifiers, I2S/TDM/SoundWire/PDM interfaces and clocking.
Develop and maintain ALSA SoC (ASoC) machine, platform and codec drivers, DAPM routing and mixer controls.
Integrate userspace audio frameworks (PulseAudio/PipeWire, TinyALSA, or Android audio HAL) and define routing and use-case policy.
Enable audio DSP offload — firmware loading, control interfaces, tunnelled playback and low-power always-on listening paths.
Integrate and tune voice and audio processing chains: echo cancellation, noise suppression, beamforming, multi-mic arrays and keyword detection.
Measure and optimize end-to-end audio latency, glitch rate, power consumption and objective audio quality.
Debug pops, clicks, underruns, XRUNs, sync drift and DSP crashes using traces, logs and audio capture analysis.
Support acoustic tuning cycles and define audio validation and regression coverage.
Skill Requirements
8–10 years in embedded audio software engineering.
Strong C, with C++ where the framework demands it, on embedded Linux and/or Android.
Deep ALSA / ASoC driver development experience — DAPM, DAI links, kcontrols, codec drivers.
Hands-on with digital audio interfaces: I2S, TDM, SoundWire, PDM; clocking and sample-rate handling.
Audio DSP integration — firmware load, control protocol, offload playback/capture paths.
Understanding of audio signal processing fundamentals and voice front-end algorithms (AEC, NS, beamforming).
Latency, power and audio quality measurement and debugging methodology.
Other Requirements
Android audio HAL, AAudio or audio policy manager experience.
PipeWire or PulseAudio module development.
Programming on on-SoC audio/compute DSP cores using vendor DSP toolchains.
Bluetooth audio profiles (A2DP, HFP, LE Audio / LC3).
Acoustic tuning and lab measurement experience.
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