The vast majority of multi-channel sound (stereo, 5.1, 6.1, etc) is produced post-production, making it difficult to squeeze professional-grade discrete 5.1 audio quality into modest production budgets … until now. The Holophone PortaMic 5.1 and PortaMic Pro surround microphones both sit atop your video camera and offer a cost-effective means of recording surround sound directly to a camera or indeed, any stereo recording device. At US$600 and US$1000 respectively, the microphones permanently offer professional discrete surround recording from a single point source for a once-only price off, with no additional mixing required. Bargain!
Holophone’s PortaMic 5.1 is designed to be used on a video camera or HD DSLR camera, taps into the power of the company’s H4 SuperMINI to offer users a professional-grade, 5.1 audio recording at a price that fits into any production budget – the mic retails for US$599. Its compact size and low learning curve make it a perfect addition to any audio or video application including in-studio, field recording, documentary and ENG. The PortaMic’s 6cm (2.5 inch) x 3.5 cm (1.5 inch) mic head is powered through six separate mic elements arranged to correspond with the typical 5.1 speaker setup in a studio or home theater.
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Based on the design of the PortaMic 5.1, Holophone’s PortaMic Pro offers professional quality audio and options with point-and-shoot usability—all in a compact size at an aggressive US$999price point. Using the company’s patented design, the PortaMic Pro allows users to simply capture, from a single point source, a discrete surround recording that provides listeners with a 3D immersive experience.
With the PortaMic Pro, users now have additional control of their recordings with an audio zoom button, similar to a camera's zoom feature, that increases the forward bias of the mic’s pick-up pattern and decreases the rear channels, giving the user’s recording a more forward bias. The PortaMic Pro also includes a locking 6-pin balanced encoded stereo output, which provides a robust connection to professional grade video cameras and stereo input devices.
Both PortaMic microphones are equipped with Dolby Laboratories’ Dolby® Pro Logic II® encoder. This allows the mic’s six audio channels to be encoded down to two channels, so it can be recorded to any modern broadcast camera or stereo recording device—right down to a classic analog stereo cassette recorder. With the encoder measuring only 2.5cm (1 inch) high, users have access to Holophone’s renowned recording technology, while still being able to enjoy an uninterrupted sightline. Recordings made by the PortaMic models are output line level directly to any stereo device you choose. To ensure a high-quality recording even in loud environments, the mic features unity gain control and a 12-db pad. The mic and encoder may be powered by a 9v battery as well as 12v DC from external power sources.
As seen at the Red Ferret