Previr Rangroo Email & Phone Number

Sydney, Australia

Sydney, Australia

https://www.cnet.com/news/lg-g6-becomes-first-smartphone-to-debut-dolby-vision-hdr/

Sydney, Australia

- Leading a team of Android engineers in architecting and integrating Dolby's core technologies into Android Media Framework and underlying hardware subsystem. - Working with silicon vendors to integrate Dolby's technologies into their chipsets (Host or DSP) and BSPs.- Working with OEMs to bring the Dolby's technologies to the end mobile user.

Suwon, Gyeonggi-Do, Korea

Development of an IP-based system Video Telephony Engine on the Android platform which powers ChatON Video Chat service for all Samsung devices with varying chipset platforms.

Noida Area, India

● Technical Leadership● Provide technical leadership to a group of design/development/validation engineers working on audio/speechcodecs/effects/framework components (mixers/splitters) for STE’s SMP CortexA9 Dual Core based MultimediaApplication Processor, U8500TM● Requirements analysis for Software Reuse across Multiple OS Platforms like Symbian and Android.● Project Planning through Agile Software Development using Scrum.● Software Configuration Management and Work… Show more ● Technical Leadership● Provide technical leadership to a group of design/development/validation engineers working on audio/speechcodecs/effects/framework components (mixers/splitters) for STE’s SMP CortexA9 Dual Core based MultimediaApplication Processor, U8500TM● Requirements analysis for Software Reuse across Multiple OS Platforms like Symbian and Android.● Project Planning through Agile Software Development using Scrum.● Software Configuration Management and Work Flow Definition.● Validation Strategy and Test Plan Development for Unit and Complete Usecase Testing.● Interfacing with remote cross-site functional teams in France, Sweden and Singapore with extensive technical andproject management collaboration. Show less

Noida Area, India

● Design/Development● OpenMax IL Audio Algorithm Componentization and Network Graphs.● Smart Component-oriented Multiprocessing Framework development with dynamic load sharing over Multiple Coresand DSPs through non-monolithic DSP/ARM Firmware.● Mobile Smartphone Usecases: Audio Playback, Record, Gaming Audio, Voice Call, Camcorder, AV Playback overHDMI and other Sinks.● Floating point to fixed point conversion / Optimization (for performance, memory footprint and bus… Show more ● Design/Development● OpenMax IL Audio Algorithm Componentization and Network Graphs.● Smart Component-oriented Multiprocessing Framework development with dynamic load sharing over Multiple Coresand DSPs through non-monolithic DSP/ARM Firmware.● Mobile Smartphone Usecases: Audio Playback, Record, Gaming Audio, Voice Call, Camcorder, AV Playback overHDMI and other Sinks.● Floating point to fixed point conversion / Optimization (for performance, memory footprint and bus bandwidth).● Testing/Validation for compliance and debugging on actual silicon.● Code reviewing to ensure best possible optimization and robustness of frameworks for SMP safety.● Maintenance of the code base using version control systems like Subversion/Clearcase/GIT. Show less

Noida Area, India

HD audio codecs porting to ST40/ST200 VLIW chipsets. Audio Firmware for STB/DVD SoCs.● Maintenance of the audio components stack and portability between ARM9/ARM11/Cortex A9SMP/MMDSP+/ST200/(emulator/silicon)/SH4/Unix/Linux/Win32.● Provide an objective analysis to the ST200 core architecture teams to develop cores better suited to audioprocessing.● Audio Codecs ported to ST200: WMA Professional 9.0 Decoder DTS/DTS – ES/ DTS – 96K Decoder, Ogg Vorbis.● Apart from the… Show more HD audio codecs porting to ST40/ST200 VLIW chipsets. Audio Firmware for STB/DVD SoCs.● Maintenance of the audio components stack and portability between ARM9/ARM11/Cortex A9SMP/MMDSP+/ST200/(emulator/silicon)/SH4/Unix/Linux/Win32.● Provide an objective analysis to the ST200 core architecture teams to develop cores better suited to audioprocessing.● Audio Codecs ported to ST200: WMA Professional 9.0 Decoder DTS/DTS – ES/ DTS – 96K Decoder, Ogg Vorbis.● Apart from the above, I have a hands-on experience with codecs like MP3, AAC, AC3, Dolby Digital Plus,MPEG2 Audio, MLP, LPCM, IMA ADPCM, post processings like Prologic, MPEG Surround, Circle Surround andTrusurroundXT, Stereowidening, etc. and speech codecs like G7XX series, AMR, Speex, etc.● Benchmarking with other cores and industry figures. Show less

Audio/Image Codecs porting to C55x DSP.