Jon.Bryant
Well-known member
I have always thought that it is impossible to accurately record song flights of birds correctly. If you record a bird in mono with a directional mic, and track the bird well, it sound like it either doesn't or hardly moves, and it you don'r track it well , if sounds as if it momentarily zooming off into the distance. A stereo recording with mics fixed in location doesn't help, with the 3D flight compressed into a 2D plane - the movement now sounding like the bird is travelling a bit to the left or right and a bit further away or closer again (dependent on relative position to the mics), but not with a hint that the bird is travelling vertically.
I note that there are now a few ambisonic mics available, and that the output an be rendered to binaural audio. Some recording devices are capable of the rendering/decoding onboard, so you can monitor the 3D audio in the field. I have just tried listening with headphones to some binaural recordings (but not of birds), and was surprised by the fact that things did sound front, left, right, and quite weirdly behind and even above me. The science of how two speakers can create such an effect is beyond me!
My question is whether anyone has experience of recording using ambisonic mics to create binaural recordings that capturing bird movement, or if they have ever heard any such recordings. I am dazzled by the idea that I could record a dawn chorus, an environment or song flight in 3D, but suspect that things may not be a simple as a fancy mic and an ambisonic plug in for my recorder.
Regards
Jon Bryant
I note that there are now a few ambisonic mics available, and that the output an be rendered to binaural audio. Some recording devices are capable of the rendering/decoding onboard, so you can monitor the 3D audio in the field. I have just tried listening with headphones to some binaural recordings (but not of birds), and was surprised by the fact that things did sound front, left, right, and quite weirdly behind and even above me. The science of how two speakers can create such an effect is beyond me!
My question is whether anyone has experience of recording using ambisonic mics to create binaural recordings that capturing bird movement, or if they have ever heard any such recordings. I am dazzled by the idea that I could record a dawn chorus, an environment or song flight in 3D, but suspect that things may not be a simple as a fancy mic and an ambisonic plug in for my recorder.
Regards
Jon Bryant