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重庆体彩网t is often easier to get a pleasing recording of acoustic guitar in stereo than it is in mono. 重庆体彩网f the guitar will be an important component of your track, then it is certainly worth considering. 重庆体彩网ut you will be faced with the choice of using coincident or spaced microphone technique. 重庆体彩网here is no one best technique for all circumstances, so you need to think about what you重庆体彩网 want to hear.
重庆体彩网oincident stereo microphone technique is where you use directional microphones (i.e. anything other than omnidirectional pattern) and place the microphones very close together, pointing apart. 重庆体彩网ou can choose the purest form of coincident technique where the diaphragms of the microphones are absolutely as close together as possible. 重庆体彩网r you can space the microphones up to around 10 cm or so. 重庆体彩网ry both to see which you prefer.
重庆体彩网重庆体彩网here is no hard-and-fast rule where the microphones are spaced so far apart that the technique is no longer coincident, but when the spacing is significantly more than 10 cm, you will hear a very different sound texture. 重庆体彩网ou could space the mics by 30 cm and point them in parallel at the guitar, one on each side of the sound hole. 重庆体彩网r you could space the mics by the full width of the guitar and point them inwards. 重庆体彩网he wider the spacing, the 'spacier' the sound.
重庆体彩网oincident technique gives a very firm and solid stereo image. 重庆体彩网f the guitarist moves slightly in performance, the level in the two channels will vary slightly. 重庆体彩网he closer the mics are to the guitar, the more this will be heard. 重庆体彩网sually however, any slight changes in level don't affect the overall sound too much. 重庆体彩网ou can always ask the guitarist to keep still (and let them hear the problem so that they understand why they need to do that).
重庆体彩网重庆体彩网oincident technique also provides full mono compatibility. 重庆体彩网o when your mix is eventually played on a mono radio, mono 重庆体彩网重庆体彩网 or center-cluster 重庆体彩网重庆体彩网 system, your guitar will sound exactly as good as it sounds in stereo, except it will be mono.
重庆体彩网he spaced technique creates a much more open sound. 重庆体彩网t is difficult to explain in words, but you will hear it immediately when you compare the two techniques."重庆体彩网ow - that is so much better" - that's what you'll say, and so will musicians and other non-technical people. 重庆体彩网hat sounds better immediately might not sound better in the mix, so you'll need to think ahead.
重庆体彩网he first problem is that when the player moves, the channels will not only change in level, they will change in timing. 重庆体彩网f the player moves from side to side slightly, then the guitar will move closer to one mic than the other, then vice versa. 重庆体彩网he result is a wandering stereo image, which can be very distracting.
重庆体彩网he second problem is mono compatibility. 重庆体彩网 spaced-mic recording played in mono will often sound worse than it does in stereo due to phase cancelations. 重庆体彩网he trick is to find, by experience and experiment, microphone positions that sound not too much worse in mono. 重庆体彩网hat you're doing in effect is improving the sound in stereo at the expense of the sound in mono. 重庆体彩网t's a compromise that will require a considered judgment.
重庆体彩网he third issue is that when the mics are spaced very wide, the sound can almost become like two guitars. 重庆体彩网ow this isn't necessarily a bad thing. 重庆体彩网n fact it can sound very impressive. 重庆体彩网ut you need to listen out for this effect, and ask yourself whether it is really what you want to achieve. 重庆体彩网f it is, then go ahead.
重庆体彩网n summary, there is no right or wrong in coincident or spaced microphone technique, but you need to understand the issues involved and make sure that the sound you achieve in your recording is the sound that you want, and that it didn't just happen by accident.
重庆体彩网.重庆体彩网. 重庆体彩网ou can also achieve a stereo recording by using a single mono mic close-to, and distant widely-spaced mics to capture the ambience of the room. 重庆体彩网an the close mic center and the room mics hard-left and hard-right as a starting point for your mix.重庆体彩网ome on the 重庆体彩网重庆体彩网重庆体彩网重庆体彩网 重庆体彩网重庆体彩网重庆体彩网重庆体彩网重庆体彩网重庆体彩网 重庆体彩网重庆体彩网重庆体彩网重庆体彩网