
A single detection would have enormous implications for cosmology, black hole physics, and quantum = GeV. We evaluate constraints and detection prospects in detail, and show that if not already ruled out by monopole searches, this scenario can be largely explored within the next decade using existing or planned experimental equipment. However, we argue that such relics may typically carry electric charge, making them visible to terrestrial detectors. Neutral Planck-scale relics are effectively invisible to both astrophysical and direct detection searches. But if the evaporation process halts at the Planck scale, it would leave behind a stable relic, and such objects could constitute the entirety of dark matter.

A variety of observational constraints exist on massive black holes, and black holes with masses below 10 15 g are often assumed to have completely evaporated by the present day. But they can be saved as new defaults, so with a little work, Sigmund can be a highly creative and fluid plug-in to use.Ī sonically interesting delay machine with many different potential applications for mixing and sound design.If dark matter is composed of primordial black holes, such black holes can span an enormous range of masses. The only negatives we had with Sigmund were operational – for instance, elements like automation need setting up rather than being ready to use out-of-the-box.

This works very well for both intricate decorative delays within a mix as well as being strong enough to stand alone when creating new sounds. We therefore had to read the manual to fully grasp this.īetween the routing options, independent L/R or M/S and general layering possibilities with Sigmund’s four delay lines, there’s a high level of richness available.

The graphical positioning of the GUI as a whole doesn’t relate to the running order of the signal chain. This is when the exact architecture of Sigmund becomes a little less obvious to understand. We then used a looping snare-hit sample as a trigger sound to test the programming side of Sigmund as well as its sound-design possibilities.
