12/3/2023 0 Comments Binaural microphone diy![]() ![]() The recordings were subject to a small scale listening test, which concluded that for this ensemble and recording environment, the Blumlein array produced the most pleasing recording with a wide stereo spread stretching from ear to ear and providing accurate imagery for each of the 4 performers. Five stereo arrays were selected to create the final small ensemble recordings, each producing satisfactory, yet varied results confirming the research suggestion that no one microphone technique will be suitable for every situation. These tests also highlighted the shadowing, image distortion and difficulty in positioning the various techniques that occurs when too many microphones are setup simultaneously. Sometimes, a non-binaural mic may work better for a certain type of video, and sometimes, the type of sound that comes from a 3Dio might not make a creator sound the way they want to. It was confirmed that, by varying the spacing and angles between microphones, the width and spacing of the stereo image could be adjusted to suit the recording. As with any other type of microphone, I think it really just comes down to personal preference and what the creator is aiming for. Test recordings were conducted to confirm the spatial cues produced by the various arrays matched the predictions made by formulae, using trigonometry to calculate the difference in path length. A range of coincident, near coincident and spaced pair techniques were researched to compare how they captured and encoded the time and level differences caused by different sound source locations. The report includes research from a number of sources examining how the human hearing system is able to identify the location of a sound source through time and level differences between the two ears and the unique interaction of the waves with the listener’s head and torso. There are a number of methods for creating a stereo recording, this report investigates and compares how a number of different stereo microphone techniques can be used to create a complete stereo field. ![]()
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