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GMU:Autonomous-Collaborative/Ludwig (view source)
Revision as of 18:01, 13 October 2019
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I started with a wooden frame which surrounds an inner base plate. I divided the plate into two halves, one with acoustic foam and the other with lines and circles engraved. On the front side I attached a wire frame and connected it loosely to the body. Furthermore, I have plastic hair of a broom built into the frame. The piezo microphone is glued to the base plate. Below it are the audio interface, a small power bench and the Raspberry PI, which are mounted on the feet. They are hidden by the frame. It is important to place damping bouncers under the feet. This prevents the transmission of foreign vibrations to the microphone. | I started with a wooden frame which surrounds an inner base plate. I divided the plate into two halves, one with acoustic foam and the other with lines and circles engraved. On the front side I attached a wire frame and connected it loosely to the body. Furthermore, I have plastic hair of a broom built into the frame. The piezo microphone is glued to the base plate. Below it are the audio interface, a small power bench and the Raspberry PI, which are mounted on the feet. They are hidden by the frame. It is important to place damping bouncers under the feet. This prevents the transmission of foreign vibrations to the microphone. | ||
For the audio processing I combined different effects and filters. I used | For the audio processing I combined different effects and filters. I used | ||
# sine pitch | # sine pitch | ||
# low and high pass filter | # low and high pass filter | ||
# reverb (echo) | # reverb (echo) | ||
==Implementation in Pure Data== | ==Implementation in Pure Data== | ||
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==Discussion== | ==Discussion== | ||
I wanted to build a device that uses the piezo microphone and a raspberry to create relaxing mood with sounds and tactile media. The result is a first feasible approach. In my opinion listening to the device is surprisingly immersive. But that's a purely subjective assessment. For further improvement, it would be necessary to develop a user study that verifies the benefits. | I wanted to build a device that uses the piezo microphone and a raspberry to create relaxing mood with sounds and tactile media. The result is a first feasible approach. In my opinion listening to the device is surprisingly immersive. But that's a purely subjective assessment. For further improvement, it would be necessary to develop a user study that verifies the benefits. Also the following points should be discussed: | ||
# The device is too big and difficult to transport. The sound processing should be optimized to a system on a chip, such that the whole processing could fit in a regular fidget cube. | # The device is too big and difficult to transport. The sound processing should be optimized to a system on a chip, such that the whole processing could fit in a regular fidget cube. | ||