The History and Development of the Sampler

For audio, the sampler is a device that can play and manipulate audio recording. Over the past 70 years, their development has included increasingly versatile and impressive features. In this article I will introduce and study important historical developments leading to modern samplers. Some of the earliest samples can be heard in German film producer Walter Rutman 'Wochenede' (1930). Sounds are recorded using Tri-Ergon's motion picture film system. This system captures the audio on the camera tape as a different translucent line.

Sampler is a module that plays and processes sound files in Sensory Percussion. Typically, one or more samplers are loaded into a pad in the SP that is associated with a musical gesture, such as "rim shot". An audio file is loaded into the sampler and a sound is generated each time the gesture is played. Sampler is actually an engine promoting the sound design of Sensory percussion instruments. The advantage of Sensory Percussion's sampler is that you can stack as many samplers as you can on any pad. If you want to make multiple sounds of one inductive percussion pad independent from each other, stacking the sampler is useful. For example, one sampler can have a tone like a chalk group code (so that tones do not overlap), another sampler with percussive sound is not included in the turbulence group.

In the standard practice of improved California sampler "thick wall, lining, dividing barrel, driving sampled soil 1" (ASTM D 3550). As with the SPT sampler concept, the sampler cartridge has a larger diameter and is typically lined with a metal tube to accommodate the sample. Samples from the improved California sampler were thought to be disturbed due to the large sampler area ratio (sampler wall area / sample cross section). Shelby tube sampler "Standard method for soil sampling with ground thin tube" (ASTM D 1587) is used. The sampler consists of thin-walled tubes with trims on the toes. The sampling head connects the tube to the drill pipe and includes a check valve and a pressure vent. Typically used in viscous soil, the sampler is usually propelled to a soil layer 6 inches smaller than the length of the tube

Piston sampler These samplers are thin metal pipes including a piston at the tip. As you push the sampler into the bottom of the hole, the piston will remain on the soil surface while the tube is sliding. These samplers return undisturbed samples in soft soil, but it is difficult to go through sand or hard clay and it can be damaged if gravel occurs (broken sample). Livingstone corer developed by D. A. Livingstone is a commonly used piston sampler. Livingstone corer has been modified with a serrated core head that can be rotated to cut underground plants such as small roots and buried branches.