Getting the perfect drum sound starts long before you touch the fader, and few decisions impact the final mix more than your choice of microphone placement. Among the most critical and frequently discussed techniques is the ORTF drum overheads configuration, a method that delivers a realistic and spacious stereo image. This approach captures the kit with a natural sense of width, placing the cymbals and rimshots exactly where they sit in the physical space of the room.
The ORTF method, named after the French broadcasting company, relies on using two identical microphones positioned in a specific geometric arrangement. For drum overheads, this typically means placing two small-diaphragm condenser microphones roughly 17 centimeters apart, with each microphone angled outward at 110 degrees. This specific layout creates a stable stereo base without the extreme phase issues that can occur with wider spacings, making it a reliable choice for capturing a balanced stereo field.
Why Choose ORTF for Overheads?
Selecting the right pattern involves understanding the sonic character you want to achieve. The ORTF configuration offers a compelling middle ground between the intimacy of near-coincident techniques and the dramatic width of spaced pairs.
Realistic Stereo Imaging: Because the microphones are spaced wider than a typical X/Y pair, the overheads accurately represent the physical layout of the cymbals and drums.
Natural Sound: The technique avoids the hollow "hole-in-the-middle" effect, providing a smooth and cohesive stereo image that sits well beneath the kit.
Phase Coherence: The tight angle and identical microphone models ensure that the signals from each side align well, reducing comb filtering and maintaining low-end clarity.
Ideal Microphone Selection
To execute this technique effectively, you need microphones that can handle the complex transients of a drum kit without coloration. A small-diaphragm condenser is the standard recommendation due to its ability to capture fast attacks and high-frequency detail with precision.
You want a microphone with a flat frequency response and a high sound pressure level handling capability. This ensures that a crashing cymbal or a sharp snare crack does not distort the capsule, preserving the dynamics and transient response that make the overheads shine.
Practical Setup and Positioning Positioning the microphones correctly is the key to unlocking the potential of the ORTF drum overheads. While the theoretical angles are a great starting point, practical application requires slight adjustments based on your environment and the kit itself. Parameter Recommendation Microphone Height td>Position the capsules slightly above the highest point of the kit, angled down. Distance from Kit Roughly 3 to 5 feet back from the snare drum, ensuring the entire kit and cymbals are within the capture field. Stereo Spread Maintain the 17cm spacing to preserve the correct timing correlation between channels. Integration with the Drum Mics
Positioning the microphones correctly is the key to unlocking the potential of the ORTF drum overheads. While the theoretical angles are a great starting point, practical application requires slight adjustments based on your environment and the kit itself.
Microphone Height
Overheads are not isolated elements; they must work in harmony with the close-miked snare, toms, and kick. The goal is to create a layered sound where the overheads provide the general ambience and stereo width, while the bottom mics supply the necessary punch and definition.
