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If your doc is a commercial venture, one mic (and a shotgun at that) will not be up to the task from a quality standpoint and you should probably hire a pro sound guy. On the other hand, if it's just a trial run or for fun or learning, then have at it as follows:
If you are using the music as a background bed, you'll have to try several approaches. First open the top to expose the strings & soundboard. Place your mic on the stand and aim it at the piano strings from above. You'll have to move the mic around to find a sweet spot. Since you only have one mic, it should be aimed more or less to the center of the strings, again you'll have to play with it a little. Hopefully, somewhere in the signal path there will be a vu meter or led display to allow you to control level.
Please note that as you are using a shotgun mic that you won't get a great balance from all strings. Better to use a cardiod polar pattern in this instance.
If you are only using one mic, a mixer will be of limited value other than to provide EQ and possibly easier level handling. The HVX is fully capable of handling the Rode as a direct input. If quality is of concern, re read the first sentence above.
Have fun
I would probably use a cardioid pair through a MixPre or other good Mic. pre/ mixer into a Flash recorder at 48/24. You didn't say if you were filming at the same time or if you were using the camera just to record audio. I would shy away from using the camera to record because HD cameras compress the audio they record and you can get some strange artifacting.
I'd agree with the use of a better recording device than the camera if looking for decent quality as discussed above... The HVX doesn't compress audio, but it is much noisier than an external recorder will be, which will be noticeable in very quiet piano passages, especially if the levels are boosted in post.
I'd agree with the use of a better recording device than the camera if looking for decent quality as discussed above... The HVX doesn't compress audio, but it is much noisier than an external recorder will be, which will be noticeable in very quiet piano passages, especially if the levels are boosted in post.
on a similar note, what is the best way to avoid the 'thump' of the pedals? i have recorded piano once and had terrible trouble with them. i asked the pianist (a classically trained concert player) if he could hit them with a little less force, but all i managed to do was offend him
Heh heh hehi asked the pianist (a classically trained concert player) if he could hit them with a little less force, but all i managed to do was offend him
What kind of Rode? What kind of piano (Grand or upright)?
As said, ideally you want a stereo mic setup for piano recording.
Especially if it's a grand piano, and you want a "natural" or classical sound, you want the mic to be pretty far from the piano. The more directional the mic, the farther you want it to be to capture the sound of the whole instrument. As a rule of thumb, for a grand piano, the mic(s) should be at least as far away from the piano as the length of the piano; the mic should approximately bisect the angle of the open lid and soundboard; and should be aimed at the soundboard.
I think some sort of external preamp would likely benefit you; a piano has great dynamic range and you may need to boost some of what you record in post; this will really emphasize the lower-quality preamps of the camera.
A pro setup? Depends a lot on the style of music, the performer, the instrument, and the room. Piano is one of the most difficult instruments to mic, and the most flexible. Pop-ish recordings often place mics right over the strings and/or hammers; classical recordings want the sound of the room (if the room sounds good); Jazz recordings can go either way (or both); and all sorts of sound experimentation is done with piano sounds. Sometimes the sounds a performer makes (unintentional "singing", breathing) will partially determine mic placement, etc. As a pretty simple but reliable setup, in a nice hall I often start with a spaced pair of omnis, 3-6 feet apart, placed as I've described above or a little closer. If the room sound is NOT desirable, something similar with cardioids....
Good to hear... congratulations! What'd you finally do?