https://www.supertone.ai/en/clear vst za odstranjevanje vokalov

https://www.ncei.noaa.gov/products/world-magnetic-model <img src=//www.ncei.noaa.gov/sites/default/files/inline-images/D.jpg />

Zakaj red book reče, da vzorčimo točno s 44100 Hz? Razlog se skriva v PAL analognem videu: če zajemamo na PAL vrstico tri vzorce zvoka (249 vrstic/okvir * 50 okvirjev/sekundo * 3 vzorce/okvir = 44100 vzorcev/sekundo): https://en.wikipedia.org/wiki/44,100_Hz#Recording_on_video_equipment

https://www.antene-zupancic.si/?orderby=price

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<blockquote>
During handshake, modems will start at 300bps send “command” sounds to the SS7 switch gear to disable various settings like filtering, cancelers, and echo, using v.8 bis.
It will even act upon SS7 replies such as telling the modem if it is a landline, digital, or cellular connection, before determining which encoding to agree upon.

All that happens before the two modems start a known wide spectrum probe so each can tell if there are frequency blocks/interference or transmitting power issues.
Finally they each communicate their available (and functional) baud rates.

VoIP gear (at least up to a decade ago) did not support any of this, ignored ss7 commands, and of course filtered down the audio range to uselessness.
(I only say up to a decade ago as the extent of my knowledge, not saying it’s supported now or not)

You can do an image search on “the sound of the dialup” to see an amazing visualization and annotation of a modem handshake, and just how early in the process the lack of ss7 commands break things.
</blockquote>


^^ a je to res?