On 02/28/2012 04:20 PM, Takashi Iwai wrote: >> I'm talking about recording an internal mic in *stereo*, as I just wrote >> below. Or don't you agree that is a valid and probably fairly common use >> case? > > Well, when you record it in stereo, and play it back, then you hear > the sound without problem.
That could definitely be questioned: depending on the distance between speakers when you're finally playing it back, you might lose bass frequencies [1]. (That said, I'm not sure how much bass these mics pick up anyway.) > The problem happens only when you sum the > left and right signals into mono. Thus, as long as the stream is > handled as stereo, it could be passed as is, although it's not > optimal. So the official recommendation is that summing left and right to make a mono signal, is to be considered an invalid operation? -- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic [1] Or possibly get distorted sound in different ways, not sure. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/903853 Title: [Lenovo IdeaPad U300s, Conexant CX20590, Mic, Internal] Background noise or low volume (phase inversion) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/903853/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
