Professional Microphone Stereo

Professional Microphone Stereo

Professional Microphone Stereo

The Sony ECM-MS957 microphone is a single point stereo microphone pitched at the medium consumer price bracket, around $150/£150. It is an established design from Sony, and has a fairly good sound for the price, particularly for acoustic music and speech recording.

Good Mono Compatibility from the Sony ECM-MS957's Mid-Side Design

Unlike most single point stereo microphones such as the AT 8022 and Rode NT4 which are generally a variant on the crossed cardioid XY pattern, the ECM MS957 is a mid-side design, with one forward facing cardioid microphone capsule and one figure-8 aimed to the sides. Unlike the XY configuration, where both capsules are working off-axis to a sound source dead centre, the Sony ECM MS957's mid capsule is facing directly at the central sound source, which means the lowest colouration and most even frequency response for it.

Usually a mid-side microphone needs a special matrix to process the signal into a normal left-right stereo signal but in the MS957 this is done inside the microphone, which uses a pair of audio transformers to do the matrix processing. This has two advantages - one is that monitoring LR is easier, and the other advantage is that the ECM MS957 is transformer balanced, although Sony do not make much of this in the specification sheet, and supply a 5-pin XLR to unbalanced 3.5mm TRS stereo jack plug as standard.