Adam Monroe's Upright bass was sampled from the pluckings of a gigging upright bass player. The bass itself was an inherited instrument from the musician's grandfather. The exact age of the bass is not known, but it had seen some action, and although a little beat-up, still sounded great!
To produce this library, the bass was sampled through a close-miced stereo pair of Shure SM81's, an AKG D112, a Neumann Tlm 102 and a "di" bridge pickup. During mixing, it was decided that the SM81's blended with the D112 gave the best overall tone. The bass was sampled over the course of a few 10 hour sessions, where the bass player played plucked notes, slap bass, and slides. Boy, did his fingers burn after those slides!
Do to the nature of the recording environment, the samples contained a lot of noise, and had to be denoised, although a lot of the noise was left in so as not to affect the tonal qualities of the upright bass too much. As an instrument that is more-or-less destined to sit in a mix, we don't feel that the slight noise is much of an issue, and do to the percussive nature of an upright bass, tends to fade-away quickly, but well let the audio demos speak for themselves.
The goal of this library was to strike a balance between a realistic upright bass sound and a useable vst, therefore, the articulations are "pre-recorded" as opposed to engineered/programmed. Although software simulation allows for more control over playing, nothing sounds quite like live articulations.