Zeppelin Design Labs Cortado MK III Attachment Accessory Kit
The Cortado MkIII Owners Guide contains application notes and tips for use of each item in the attachment accessory kit.
The kit contains a variety of clamps and adhesives to attach the Cortado MkIII contact microphone to virtually any surface. Includes:
With contact microphones the concept of coupling is very important. Nothing affects the bandwidth and frequency response of contact microphones more than how well the sensor is attached to the vibrating surface.
There are many ways to mount the sensor to a vibrating surface. We have found a few very practical mounting methods which cover a wide variety of applications. For temporary mounting we suggest using sensor putty (supplied with the microphone) or a spring clamp. For permanent installation of the sensor we suggest using a mounting strap or thin (non-foam) double sided tape. All of these devices are available from Zeppelin Design Labs in a separate accessory kit.
The putty is good for mounting the sensor on both smooth and rough surfaces. It can conform to uneven surfaces, providing better coupling between the sensor and the vibrating surface. To apply the sensor putty, roll it into a ball and place it on the bottom of the sensor head. Gently flatten the ball out on the bottom surface of the sensor. Try to keep the putty as thin and flat as possible to ensure that air bubbles aren’t trapped between the putty and the sensing surface. The bottom of the sensor doesn’t have to be completely covered with the putty; enough of the surface just needs to be covered to ensure good coupling.
To preserve the useful life of the sensor putty, clean all dirty surfaces before application.
NOTE: Sensor putty is only intended to be used as a temporary mounting mechanism. Do not leave the sensor putty attached to delicate surfaces (such as oil or lacquer finishes) for more than a few hours at a time. The sensor putty should not be used on surfaces with loose or weak finishes, or they are likely to be damaged when removing the sensor. Please see the warning about the sensor’s lid on page 8.
Spring clamps are great for mounting the sensor near the edge of thin objects. Spring clamps can couple the sensor tightly to a surface, which really helps to capture the full bandwidth of the vibrations.
Mounting straps for the Cortado MkIII sensor (included in the optional accessory kit) are perfect for permanently mounting the sensor to a wooden surface, such as the underside of a basketball court or tap dance floor. When using a mounting strap make sure to place the sensor in the very middle of the bracket, so that neither side of the strap touches the side of the sensor head. Use the supplied screws to attach the strap to the vibrating surface.
Double sided tape is a great option for permanently mounting the sensor to smooth surfaces. For capturing the fullest bandwidth, use thin double sided tape with very strong adhesive properties, such as the tape disc provided in the mounting accessory kit. Foam-type tapes will behave as a mechanical filter, tuning out certain frequencies. Sometimes, this may be just what you need for capturing a particular sound. Feel free to experiment.