BHARATH A
DSP AUDIO VALIDATION ENGINEER
Chennai
Summary
Audio-focused Embedded Test Engineer with 5 years of experience in Audio Codec validation, firmware behavior analysis, and real-time audio signal testing. Proven expertise in validating Melody 8 (ADSP21569) and Melody 9 (ADSP21593) codec platforms using Sigma Studio, covering full signal path testing including ADC/DAC, volume control, mute logic, input/output routing, and codec configuration over I2C/SPI. Adept at analyzing logs, debugging codec-level firmware issues, and delivering audio-first quality assurance for product releases.
Overview
5
5
years of professional experience
2
2
Languages
Work History
Trainee Test Engineer – AUDIO INTEGRATION
Jasmin Infotech Pvt Ltd
07.2021 - Current
- Supported early-stage audio playback validation.
- Verified end-to-end audio flow and log accuracy in system interactions.
- Developed test plans and executed threat modeling to prioritize security efforts.
- Collaborated with development teams to remediate vulnerabilities, reducing security incidents.
Test Engineer Grade 2 – AUDIO VALIDATION
Jasmin Infotech Pvt Ltd
06.2021 - Current
- Leading Audio Codec testing on Melody 8 & 9 (ADSP21569/21593) evaluation boards.
- Validated signal integrity across multiple paths: I2S input, DSP routing, DAC output.
- Designed and executed test plans for mute/unmute logic, volume control, tone playback.
- Configured and debugged Sigma Studio+ flow; verified SPI and UART communication and filter modules behavior.
- Supported HDMI 2.1 audio chain validation: LPCM, ARC/eARC, sync timing.
Test Engineer Grade 1 – HDMI & AUDIO SYSTEM VALIDATION
Jasmin Infotech Pvt Ltd
01.2022 - 01.2023
- Conducted HDCP 1.4/2.3 validation focused on audio decryption quality.
- Backend validation of OSD menu audio settings using C.
- Blimp tool testing and customer-specific firmware validation for audio paths.
Education
B.Tech - Electronics and Communication Engineering
SRM University
Chennai10.2025
Diploma - Electronics and Communication Engineering
Thiagarajar Polytechnic College
Salem05.2021
Skills
Audio Codec Testing – Melody 8 & 9 (SHARC Processor ADSP21569/21593)
Sigma Studio – DSP routing, filter tuning, signal flow validation, DSP Processor
Audio Signal Path Validation – ADC/DAC, I2S(SAI), TDM, ASRC, ASRCTDM mute, volume, stereo/mono, DTS-HD / Dolby bitstream streaming via Linux ALSA
HDMI Audio Validation – ARC/e-ARC, LPCM passthrough, sync integrity
Manual Testing & Log Analysis – Real-time audio playback, firmware debug
Embedded Interfaces – I2C,UART, SPI, Serial Console
Tools – Sigma Studio, Tera Term, Bugzilla, JIRA, APx, CCES, Audacity, Spectra
Languages – Python and (C-programing basics)
Manual & Functional Testing (Audio & Video Domains)
Timeline
Test Engineer Grade 1 – HDMI & AUDIO SYSTEM VALIDATION
Jasmin Infotech Pvt Ltd
01.2022 - 01.2023
Trainee Test Engineer – AUDIO INTEGRATION
Jasmin Infotech Pvt Ltd
07.2021 - Current
Test Engineer Grade 2 – AUDIO VALIDATION
Jasmin Infotech Pvt Ltd
06.2021 - Current
Diploma - Electronics and Communication Engineering
Thiagarajar Polytechnic College
B.Tech - Electronics and Communication Engineering
SRM University