As I continue to add capabilities I’ve learned that different software, for reasons I yet to understand, require different audio levels. WSJT-X requires audio set to one level. Vara another. Direwolf benefits from a couple different levels depending on what I’m doing (YAAC or Pat for example) and how well I can hear stations nearby.
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ALSA is powerful. Incredibly flexible. Because of that it’s almost guaranteed to be complicated. I spend a lot of time plugging and unplugging different audio devices into my machines in different places. The way ALSA identifies sound cards (USB, built-in, HDMI, whatever) is that the first one detected becomes card0. The next is card1. The.
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