During encoding, 576 time-domain samples are taken and are transformed to 576 frequency-domain samples.[clarification needed] If there is a transient, 192 samples are taken instead of 576. This is done to limit the temporal spread of quantization noise accompanying the transient. (See psychoacoustics.)
Domain samples are transformed into what?
frequency-domain samples

The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland. More recently, in 2015, "remains of biotic life" were found in 4.1 billion-year-old rocks in Western Australia. According to one of the researchers, "If life arose relatively quickly on Earth ... then it could be common in the universe."
What is the name of the era that predated life on Earth?
Hadean Eon

During the latter half of the 20th century, a more diverse range of industry also came to the city, including aircraft and car manufacture, cables, electrical engineering products, and petrochemicals. These now exist alongside the city's older industries of the docks, grain milling, and tobacco processing.
Along with the docks and grain mills, what crop has been processed in Southampton for a long time?
tobacco