There is no one size fits all when it comes to recording your acoustic guitar, this type just varies per instrument so recording one may need some variations. Good thing there is more than one technique you can choose from. Producer, engineer, author and coach Bobby Owsinski of the Music Production gives us three techniques from his book that is sure to work. Have them handy in case everything else you have tried failed.
First, consider the following, close miking the sound hole is a complete no-no because generally, this is where the worst way to produce that sound for your recording.
Close miking the sound hole is a complete no-no, as this produces the worst sound you can use for your recording.