The Audigy2 Value, card, for instance, just needsĪmixer -c 0 cset numid=19 100%,100% unmute cap Many cards don't have separate switches for capture source and volume. The capture switch has to be on, but it likely already is. Legal values are shown by the cget command, as above. I got sound working by setting capture source to mix, and upping the volume: So this channel takes two values, for stereo input. type=ENUMERATED,access=rw-,values=2,items=8 The numbers will vary, and you might get a IEC958 you can ignore.įor the capture source, that will show available inputs: Numid=22,iface=MIXER,name='Capture Volume'
Numid=21,iface=MIXER,name='Capture Switch' Numid=20,iface=MIXER,name='Capture Source' That gives you your capture channels, something like this: Solution: use alsa's amixer command-line mixer control, like this:
Avermediaavertv wdm audiocapture drivers full#
Still, mixers typically present only a subset of the full channels available on sound cards, and may leave out what you need. In alsamixer, for instance, press F4 to display the capture channels. You may be able to see the capture channels with a mixer such as alsamixergui or kmix or aumix. This may sound counterintuitive, if you already hear the sound through your sound card to your speakers, but you need to activate a different channel to capture. The sound card may well have the relevant capture channels muted or the volume turned off.
Avermediaavertv wdm audiocapture drivers Patch#
The common method for getting the sound off the card is to use a patch cable from the tv card to your sound card this works fine.įor recording off the tv-card, you'll likely have to instruct your mixer to use a particular capture channel. The picture quality is good, and there is no gunk around the edges that need cropping.īoth ntsc-cc and zvbi works for Closed captioning. not foundīttv0: i2c: checking for TDA7432 0x8a. not foundīttv0: i2c: checking for TDA9875 0xb0. not foundīttv0: i2c: checking for MSP34xx (alternate address) 0x88. Tuner: type set to 2 (Philips NTSC (FI1236,FM1236 and compatibles)) by bt878 #0 īttv0: i2c: checking for MSP34xx 0x80. Tuner: chip found at addr 0xc2 i2c-bus bt878 #0 īttv0: Avermedia eeprom: tuner=2 radio:no remote control:no The card is recognized when the bttv module is loaded on boot here's a typical dmesg log:īttv: using 8 buffers with 2080k (520 pages) each for captureĪCPI: PCI interrupt 0000:03:04.0 -> GSI 16 (level, low) -> IRQ 16īttv0: Bt878 (rev 17) at 0000:03:04.0, irq: 16, latency: 64, mmio: 0xfb6fe000īttv0: detected: AVerMedia TVCapture 98, PCI subsystem ID is 1461:0004īttv0: using: AVerMedia TVCapture 98 īttv0: gpio: en=00000000, out=00000000 in=00fff7c3 īttv0: Hauppauge/Voodoo msp34xx: reset line init Memory at fb6ff000 (32-bit, prefetchable) Memory at fb6fe000 (32-bit, prefetchable) Ĭapabilities: Power Management version 2 This card shows up on the PCI bus as two devices, one for video capture and one for audio:Ġ000:03:04.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)Ġ000:03:04.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)įlags: bus master, medium devsel, latency 64, IRQ 16 The only exception, detailed below, is that I've not been able to pull the audio directly off the card and have to use a patch cable. The cards are good and cheap, and well-supported in Linux. These are available only on the aftermarket at this point. 5 Getting the sound directly off the tv cardĬard 13 in the bttv cardlist works for a number of AverMedia cards, including the AverTV98 Stereo card with an NTSC tuner sold in the US.4 Getting the sound from the sound card.
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