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Articles Sept-Oct 2022

Roger Drego on Creating Fail-Proof Sound for Mega Live Events New!

In a session titled 'Performance Guarantee of Mega Scale Live Sound Projects', Roger Drego, Managing Director, Electrocraft, took to the stage at PALM Conference 2022 to share invaluable challenges and insights with regards to guaranteeing fail-proof sound reinforcement during showtime. read more

Articles Sept-Oct 2022

Bringing Futuristic AV Ideas To Life New!

MMRDA, responsible for promoting, monitoring, and developing various sectors in Maharashtra, including, but not limited to transport, housing, water supply and more, entrusted EYTE to revamp and upgrade Wadala Monorail Depot's Boardroom with state-of-the-art AV infrastructure. Abdul Waheed, Managing Director, EYTE Technologies Pvt Ltd, in conversation with PALM Technology, reveals how his team transformed the visage and acoustics of the boardroom and managed to execute the impossible feat in a matter of seven days. read more

Articles Sept-Oct 2022

Exploring the Dynamics of India's Pro AV market with Renkus-HeinzNew!

Renkus-Heinz is a professional loudspeaker company known for its innovative technology that redefines sound to empower its audience. PALM+AV-ICN got in touch with Karan Kathuria, Renkus-Heinz's Director of Sales and Business Development, Asia, Oceania and SAARC, to learn more about the company's plans for India and its strategy to stimulate growth across different verticals.read more

Articles Sept-Oct 2022

7 New Trends in AV Conferencing to look out for this year New!

From augmented meetings and interactive whiteboards to LED video walls and seamless acoustics - Pooja Shah, Editorial Assistant at PALM AV-ICN, reports a comprehensive roundup of the biggest AV conferencing trends to keep an eye out for in 2022. read more

Articles July-Aug 2022

IRAA 2021 Winners Felicitation New!

The IRAA 2021 winners were felicitated at the PALM expo on 28th May 2022 in the presence of Jury members. Check out the pics here. Nominations for IRAA 2022 close on 30th October so hurry and send in your nominations now! read more

Articles July-Aug 2022

PALM AV-ICN Expo 2022 - Glimpses & HighlightsNew!

The PALM AV-ICN Expo 2022, held from May 26 - May 28, 2022 at Bombay Exhibition Centre in Mumbai, witnessed 20,000+ unique visitors from the world of pro audio, display, lighting, and integration. Take a look at the three-day expo's glimpses. read more

Articles July-Aug 2022

HARMAN Live Arena dazzles with a range of latest audio and lighting gearNew!

The HARMAN Live Arena one of the most popular demo features at the PALM Expo entered its 11th year. The Live Arena facilitates live demonstrations of advanced sound and lighting systems, through three-day live musical performances, featuring popular and budding artists and bands from the country's independent music scene.read more

Articles July-Aug 2022

CAVS (Certified AV Specialist) Course returns for its second consecutive editionNew!

The ethos of CAVS is to provide an independent neutral education forum suited to Indian AV ecosystem to gain their commitment to a future career in AV as a technician and join an integration team on par. AV professionals in India were imparted basic knowledge of AV from May 26 - May 28, 2022 at the CAVS three-day training.read more

Articles July-Aug 2022

PALM AV-ICN Conference & SeminarNew!

Curated by PALM AV-ICN magazine, the PALM Conference & Seminar was the optimum learning and networking platform for attendees, where the best talent and top-notch professionals from the country shared their expertise, skills and knowledge. read more

Articles July-Aug 2022

High Quality Attendance At Palm & Av-Icn Expo 2022New!

The professional sound, professional display, professional lighting and integration market of importers, distributors, dealers and actual users congregated in full strength at the BEC, Mumbai, to witness the largest display of product range from top global brands, sourcing millions of dollars inventory for distribution and rental.... read more

Articles July-Aug 2022

IRAA strikes an energetic progress path with new chiefNew!

K.J. Singh recording engineer of brave new-gen albums is a spirited veteran deeply involved with Indian recording arts and professionals. The entire jury of IRAA after years is now entirely fresh, newly appointed by KJ... read more

Articles July-Aug 2022

Attendees to PALM & AV-ICN Expo 2022New!

PALM AV-ICN 2022 proved to be far busier and well attended than expected. Who exactly attends and exhibits at India's foremost audio, lighting, and audiovisual technology expo? Read on for detailed breakdown of the attendee figures... read more

Articles July-Aug 2022

Chopra's Keynote Pushes For Indian Manufacturing, Indian BrandsNew!

The 20th PALM Convention Keynote address by Founding Director Anil Chopra gave a clarion call for major investment into manufacturing pro audio, pro lighting and pro AV hardware in India... read more

Articles July-Aug 2022

What to expect from NEC at InfoComm India 2022New!

Joining PALM AV-ICN for a quick interview is Krishna Tripathi, General Manager, Display Solutions, NEC Corporation India Private Limited, wherein he elaborates on the exciting products attendees will be able to witness at the NEC Booth E20 at InfoComm India... read more


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NASA Deploys DPA to Mars




NASA’s Mars 2020 Rover took off on July 30, 2020 for a seven-month journey to the mysterious Red Planet. It touched down successfully on February 18, 2021 with a DPA 4006 Omnidirectional, an MMA-A Digital Audio Interface and an MMP-G Modular Active Cable in tow.

“Everything about the mission — from the launch to the landing — is hostile, insofar as a microphone is generally concerned. It’s very exciting to know that DPA was able to record something from so many millions of miles away, and have the sound travel back to us so quickly."  –  René Mørch, Product Manager at DPA Microphones

After the rover touched down, audio and video files were recorded from the surface and transmitted to NASA’s base station. NASA sent these files to DPA’s engineering team for processing and review.

The first to be rigged with microphones, the agency's latest Mars rover picked up the subtle sounds of its own inner workings during interplanetary flight.

The DPA 4006 Omnidirectional Microphone was devoted to capturing some or all of the entry, descent, and landing (EDL) sequence of the Perseverance Rover when it landed on Mars in February, 2021, but it already started to record the sounds of the spacecraft as it hurtled through interplanetary space.

Until recently, no one had ever heard anything from within the Martian atmosphere. In fact, the first sounds were only heard on December 1, 2018. A highly-sensitive seismometer on board NASA's InSight Mars Lander recorded vibrations caused by Martian wind. In addition, the vehicle's air pressure sensor also recorded the sound of wind. The sounds were picked up by instruments made for other purposes than sound thus the recordings are analogies to what you could expect to hear.

To gain some further insights into the Martian soundscape, the Mars 2020 Rover was outfitted with audio equipment from DPA Microphones.

What DPA equipment made the trip?

For this partnership, NASA strenuously tested a variety of mics and chose a selection of equipment from DPA. The 4006 Omnidirectional Microphones was the Rover's "ears"; attached to the vehicle and paired with MMP-G Modular Active Cables, which will act as ultra-transparent preamplifiers. Inside the body of the vehicle, acting as the auditory part of the "brain", will be a MMA-A Digital Audio Interface. The MMA-A's job is to digitalize the audio in the highest quality and send it to a computer in the Rover through a USB connection.

The trip to Mars subjected the Rover to extreme temperatures (as low as -100°C/ -148°F), wildly varying travel pressure and intense vibrations. To ensure that the equipment landed on Mars in good working order, the spacecraft design team created a specialized enclosure to mount the MMA-A interface inside the rover chassis. In addition, NASA's Jet Propulsion Laboratory (JPL) and the DPA R&D team worked together to create a custom MMP-G amplifier housing to bolt onto the exterior of the Rover.

Besides the customized amplifier housing, no major changes were made to the equipment once it left the DPA factory. One of the riskiest parts of the mission, entry, descent and landing (EDL) tracks the Mars 2020 Rover from the time it enters the atmosphere until touchdown in the Martian dust. No one had ever seen or heard a parachute opening in the Martian atmosphere, the rover being lowered down to the surface of Mars on a tether from its descent stage, the bridle between the two being cut or the descent stage flying away after the Rover lands!

The DPA microphones' mission was to capture these sounds for NASA. Not only did this allow project engineers and scientists to hear the fascinating sounds of the Rover descending, the public was also able to follow along as well.

This trip to Mars is not the first time DPA has worked directly with NASA to capture the most accurate and transparent sound during their missions. Because of their durability and ability to capture extremely high sound pressure levels (like the liftoff of a space shuttle), DPA has been chosen by NASA a few times, the first time over 50 years ago.

Current Issue : September - October 2022
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