Prof. Dr. sc. techn. Jörg Sennheiser (Spokesperson)
Dipl.-Ing. Gerrit Buhe Sennheiser electronic GmbH & Co. KG, Wedemark
Wireless microphones are among the last bastions of analog technology. Yet digital technology also has numerous advantages for microphones.
But how to go about convincing the critical ears of sound engineers that they do?
Jörg Sennheiser and Gerrit Buhe succeeded in developing a technology that has the potential to help digitization also for cableless microphones for radio and television studios to make a breakthrough.
Jörg Sennheiser is chairman of the supervisory board of Sennheiser electronic GmbH & Co. KG in Wedemark, Gerrit Buhe is head of Development Professional HF Systems.
The problem in the past was distorted sound
Whether at the mixer, with effects equipment or sound editing – in the studio or during live recordings, specialists have long been working almost exclusively with digital devices. The exception in the past has still been the microphones: For a couple of years now there are cable microphones available that use digital technology, but wireless microphones have to date all worked in the same conventional analog way. The problems involved in switching these devices to digital technology lies in the incredible amounts of data and the broad frequency range needed to transmit the signals by radio.
Any data compression for transmissions distorts the sound recordings and diminishes the quality of language and music. The large number of frequencies required can prevent numerous microphones from being used simultaneously in the studio or during a concert – and moreover was prohibited by new standards in 2004.
Noise-free and flexible with digital technology
The developers at Sennheiser have succeeded in developing a digital wireless microphone that meets professional requirements by utilizing the latest findings in digital transmission techniques and improved simulation methods. The new technology uses a narrower frequency bandwidth and supports the simultaneous use of even more wireless microphones in one frequency range. It is even possible to transmit additional data that allow the receiver to identify or repair transmission errors. The quality of the new microphones is clearer, noise-free high-fidelity sound
The team at Sennheiser has protected their new microphone system with international patents. A preliminary series of the device is currently undergoing testing in practice. As soon as the critical test users – professional sound engineers and recording engineers - have given the go-ahead, series production will start.