There's a new upright bass out and, based on the demos, it sounds like it's an excellent one: the Authentic Soundware Jazz Anthology Bass.
From the developer: “(…) a highly-realistic Kontakt instrument purpose-built for jazz walking bass lines. Our innovative Walking Performance articulation delivers seamless legato transitions using thousands of contextual samples sourced from actual walking bass performances – creating fluid, natural bass lines that sound like live studio takes. Combined with 14 additional specialized articulations and optional enhanced playback mode for precise rhythmic control, you get authentic jazz bass with unprecedented realism. Masterfully recorded at iconic Sear Sound studio in NYC, the instrument includes 6 mic positions, 20 mix presets, and comprehensive FX processing. From walking legato lines to quick passing notes, slaps, and harmonics, Jazz Anthology Bass delivers authentic jazz bass performances with elegant simplicity and convincing results.”
Intro price $79, regular price: $119.
If you like to compare the second part of the above video (a recreation of Oscar Peterson's recording of "Days Of Wine and Roses", performed with his classic trio featuring Ray Brown on bass and Ed Thigpen on drums) with the real thing:
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