On Tue, Jan 21, 2020 at 3:36 PM Brian Schachter via Coreaudio-api < [email protected]> wrote:
> > > > The most reliable way to do this is to actually measure it. Not > necessarily the most convenient, however. In Ardour we make this > measurement optional - users will get better capture alignment if they do it > > Do you play a metronome out of the speaker (output) while simultaneously > recording it with the mic (input) and afterwards look at the peaks in the > recorded data? If so, is this method of measuring impossible if the user is > wearing headphones? When the output is headphones... the mic won't be able > to pick it up. > Correct. If you want to do the most accurate measurement, you need to be able to detect and measure the signal via a "loopback" signal flow. That's why I noted "not necessarily the most convenient". >
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