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!
Read the full article: Holophone offers Professional 5.1 Surround Sound at the camera for US$600