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Lectrosonics Transmitters Help Keep Finnish Production Rolling

No battery drop-out in cold temperatures for audio transmitters

For those working in film sound production, there are always unique challenges such as rain, dust, and noise to contend with. Finnish winters, however, add a new twist to the never-ending saga of harsh working conditions: extreme cold. Image handling location sound responsibilities in a place where the temperature reaches -27 Celsius/-6 Fahrenheit. Such is the case for sound recordist Tuomas Klaavo, who along with associate Mikko Mäkelä, operates Helsingin Elokuvaäänitys Oy (Helsinki Movie Sound Ltd.). When it’s so cold that cables become stiff and brittle, the time is ripe for a wireless solution, which for Klaavo, means deploying his arsenal of Lectrosonics gear.

Since 2002, Klaavo has worked in both production and post-production sound. His credits include Saippuaprinssi (Soap, 2006), Miehen Työ (A Man’s Work, 2007), and Erottamattomat (Sisters Apart, 2008). Most recently, he handled location sound for a project titled Lapland Odyssey, a co-production between Ireland’s Ripple World Pictures, Finland’s Helsinki Filmi Oy, and Sweden’s Anagram Produktion company. Directed by Dome Karukoski, the film is a comedic and romantic road movie that moves through Lapland and seeks to explore the soul of the Finnish man.

For Lapland Odyssey, Klaavo’s Lectrosonics wireless setup consisted of two UM500 50 mW Digital Hybrid Wireless UHF Beltpack Transmitters (Euro version) / UCR511Digital Hybrid Wireless Compact Receivers, and four SMa transmitters paired with two SRa dual channel receivers. Lectrosonics SMa and SRa equipment just recently became available in Europe. He discussed the challenges of the Lapland Odyssey project and his choice of equipment.

“My whole kit was made to be as light as possible,” Klaavo explains, “because we didn’t want to haul heavy gear in the snow, and this proved to be a wise decision. Basically, I had a bag with the recorder/mixer combo and the Lectrosonics receivers sitting on a light cart. With this arrangement, I could grab the bag and go on a moment’s notice—and many times, I had to do just that. The SRa receivers have an incredible weight/performance ratio and this made them a terrific choice for field work.”

“I’ve worked with this director before and knew there would be a lot of last minute dialogue changes and ad-lib performances,” Klaavo continued. “Because of this, we had to be able to record as many off-camera lines as possible, so we used the Lectrosonics SMa transmitters with lavaliere mics on the actors while, most of the time, the 500 series equipment was dedicated to two booms. By using wireless booms, we eliminated stiff cables and thanks to our light, compact setup, we were able to move quickly between setups.”

Klaavo notes that his Lectrosonics equipment delivered results on the Lapland Odyssey project – despite the severity of the weather. “I’ve learned that Lectrosonics’ sound quality compares well with wired mics,” he reports. “In fact, 99% of what we recorded was through Lectrosonics Digital Hybrid Wireless technology. Further, the cold weather didn’t affect the sound quality or range of the equipment at all. The transmitters and receivers all worked flawlessly. The SMa’s operated for about 4 hours with 2500 mAh rechargeable AA batteries and the 500 series transmitters ran for roughly 7 hours with iPower lithium rechargeable batteries. Even in this extreme cold, battery performance was almost the same as in normal conditions.”

Lectrosonics website

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TELEFUNKEN Elektroakustik’s mission is to design and build iconic microphones and modern professional audio equipment that provides classic sound for recording, broadcast, studio, and stage . Our vision is to be a global leader in emitting good vibes through manufacturing and design, all while capturing the spark of the TELEFUNKEN legacy and transmitting it with uncompromising quality.