A needle scratching a tin can. This was my first try to produce a painfull noise, or goose pimples. Recorded with a zoom h2n. Slightly noise reduced with audacity. .
Recorded with homemade contact mic set as a stereo pair. This was attached to the zoom h5. I would describe this as experimental, with a finger nail moving between the two contact mics.
This sound is completely artificial. I made it with https://www. Leshylabs. Com/apps/sfmaker/. There, you can make sounds by altering the frequencies and things like that.
I recorded myself scratching a rock with an oyster shell. This sound was recorded off ten mile creek in hume, ca using a hand held digital recorder and has only been trimmed using audacity. On september 4th 2014.
Stereo recording of a short scratch bass. Loundge style. I used fruity loops software for this sound. I put an effect of piano roll, an acoustic guitar, an fx scratch, the hip kick for the bass with an other bass effect.