On Sat, 28 Mar 2009, Vanessa Ezekowitz wrote: > While setting up to rip an old movie from a video tape (one which is not > available on any other media), I ran into a bug in the cx88 driver.. > > As in the past, I can initialize the card into analog mode after a reboot, > and view video feeds from over-the-air analog TV (what little remains > anyway), composite video in, and svideo in just fine. Audio for the TV also > works fine via the cx88-alsa driver, as usual. > > However, for some reason, switching to either composite or svideo input does > *not* switch the audio input to the two RCA jacks on the harness like it > should. Instead, when I switch to composite mode I get the TV audio from the > last channel I tuned to, plus a little crackling or static (probably feedback > from the VCR I have connected to that input), and plain white noise when I > switch to Svideo mode.
Because of the way the ADC on cx88 chip works it can't record sound from a audio line in. It can only record sound that comes from a tv tuner. Typically the audio line in on a cx88 card is only a pass-through to the line out connector on the card. There is usually a mux that switches the line out from TV audio to the line. You'd connect the line out from the cx88 card to your sound card's line in and listen/record with the sound card. Now, it is possible for a cx88 card to have an external ADC chip, in which case that ADC can be used to record line level audio. Only a few (one?) cx88 cards have this and I don't know if yours does. So maybe this broke for your card, but I think it's more likely what you're remembering is recording with your sound card. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
