Kinky Stardust (Acoustic Guitar Pickup): Unterschied zwischen den Versionen
Amir (Diskussion | Beiträge) Keine Bearbeitungszusammenfassung |
Amir (Diskussion | Beiträge) Keine Bearbeitungszusammenfassung |
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acoustic guitar pickup. Well, and since they are rather expensive, I'm a hacker and lately have started to build my own audio equipment (e.g. a dual channel mic preamp), i decided to hack | acoustic guitar pickup. Well, and since they are rather expensive, I'm a hacker and lately have started to build my own audio equipment (e.g. a dual channel mic preamp), i decided to hack | ||
my own acoustic guitar pickup. | my own acoustic guitar pickup. | ||
===== The Name: "Kinky Stardust" ===== | |||
Well, the name of the pickup is due to the resemblance of the mounted pickup to an eye patch. And especially on my white guitar it | |||
reminded me of "Ziggy Stardust" the fictional character by David Bowie which had his face painted white and wore an eye patch. The | |||
prefix "Kinky" is kind of an reiteration since Ziggy Stardust was most an embodiment of kinkiness but I still felt I wanted to emphasize | |||
it, because the elastic strap used for mounting the pickup is a re-purposed sex toy made from re-purposed bike parts (i think it was made by the people behind http://bikesexual.blogsport.eu though i couldn't find that specific toy). | |||
I think it is worth noting that all the parts used are re-purposed parts i found in the whateverlab except for the audio jacks and the piezo. | |||
===== My specifications for a good pickup: ===== | ===== My specifications for a good pickup: ===== | ||
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1. There is no couplant and the wear plate doesn't directly touch the object. Instead i left an air cushion of about a 1.5 centimeters between them. Note that the connection between object and | 1. There is no couplant and the wear plate doesn't directly touch the object. Instead i left an air cushion of about a 1.5 centimeters between them. Note that the connection between object and | ||
case is airtight. | case is airtight. | ||
2. I also introduced a gap (about 3mm) between the backside of the piezo element and the dampening material and drilled a small | 2. I also introduced a gap (about 3mm) between the backside of the piezo element and the dampening material and drilled a small hole (~ 1mm) in the dampening material, so that the backside | ||
pocket is not airtight. | pocket is not airtight. | ||
3. I used hard rubber as case material. | 3. I used hard rubber as case material. | ||
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which in my opinion is due to the fact that sound behaves differently in different media (materials) and that the wear plate and the object are not perfectly connected (e.g. fused or glued). So i | which in my opinion is due to the fact that sound behaves differently in different media (materials) and that the wear plate and the object are not perfectly connected (e.g. fused or glued). So i | ||
decided that while loosely adhering to the design i still wanted to measure changes in air pressure like a classic mic - hence the (air tight) air cushion. I Introduced the (not air tight) | decided that while loosely adhering to the design i still wanted to measure changes in air pressure like a classic mic - hence the (air tight) air cushion. I Introduced the (not air tight) | ||
backside gap so vibration of the membrane wouldn't be inhibited - covering the | backside gap so vibration of the membrane wouldn't be inhibited - covering the hole actually results in less gain and a dampening of the higher frequencies. Well at that point i already | ||
was pretty satisfied with the results except for two issues: | was pretty satisfied with the results except for two issues: | ||
1. Even the most careful handling (touching) of the guitar was picked up very loudly. | 1. Even the most careful handling (touching) of the guitar was picked up very loudly. | ||
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Datei:ksp_hole.jpg|The "breathing hole" | Datei:ksp_hole.jpg|The "breathing hole" | ||
</gallery> | </gallery> | ||