On Tue, 2020-07-07 at 17:15 -0500, Richard Shaw wrote: > I didn't want to get specific as it's not a use case for many others > outside of ham radio. Digital communications with ham radio is done > with a sound card and the audio is sent to the radio and transmitted > over the air where it is then captured and interpreted by the > receiving station. I want to simulate this in a meeting environment > with two laptops without radios. > > The jack on my new laptop seems to support the 4 conductor jack > (stereo audio and mono mic) but I don't have the proper cable to > split it out. Regardless it's always suggested to use a dedicated > sound card for this purpose so general system sounds do not get > transmitted over the air, so an additional USB->Audio adapter is the > correct long term plan. I assume that you're also doing some DC blocking and signal attenuation, because simply connecting a sound card line out to a microphone input is just not compatible. Of course a decent USB outboard audio interface can have a line in and line out. Going all analogue, and pointing a microphone at a laptop's speaker, one in each laptop directions, could be a nice visual demonstration of wireless transmission. And demonstrate interference handling, too. -- uname -rsvp Linux 3.10.0-1127.13.1.el7.x86_64 #1 SMP Tue Jun 23 15:46:38 UTC 2020 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
