On søn, 2002-10-27 at 22:34, dafgar wrote:
> Hi all
>
> I have a Pinnacle PCTV card. When watching tv all is ok. I see picture,
> hear sound. So I try to capture sound
> > insmod btaudio
> > sox -w -r 32000 -t ossdsp /dev/dsp1 -t .dat a.txt
I tried exactly the same and got this:
; Sample Rate 32000
0 0.99996948
3.125e-05 0.99996948
6.25e-05 0.99996948
9.375e-05 0.99996948
0.000125 0.99996948
0.00015625 0.99996948
0.0001875 0.99996948
0.00021875 0.99996948
0.00025 0.99996948
0.00028125 0.99996948
0.0003125 0.99996948
0.00034375 0.99996948
0.000375 0.99996948
0.00040625 0.99996948
Seems to be the same problem.
on my Pinnacle PCTV Pro.
But how does this work? Does the dsp-device supply what is viewed on tv
or radio? How is this better than recording through the sound card (it
works when i use dsp which is my SB live).
> Again see no errors. But when I open the file a.txt I see constant signal
>
> ; Sample Rate 32000
> 0 0.99996948
> 3.125e-05 0.99996948
> 6.25e-05 0.99996948
> 9.375e-05 0.99996948
> 0.000125 0.99996948
> and so on.
>
> OS Slackware-8.0, Linux-2.4.18
>
> Kernel messages are:
>
> i2c-core.o: i2c core module
> i2c-algo-bit.o: i2c bit algorithm module
> Linux video capture interface: v1.00
> bttv: driver version 0.7.83 loaded
> bttv: using 2 buffers with 2080k (4160k total) for capture
> bttv: Host bridge is VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x]
> bttv: Host bridge is VIA Technologies, Inc. VT82C596 Power Management
> bttv: Bt8xx card found (0).
> PCI: Found IRQ 12 for device 00:0b.0
> PCI: Sharing IRQ 12 with 00:0b.1
> bttv0: Bt878 (rev 17) at 00:0b.0, irq: 12, latency: 32, memory: 0xd9001000
> bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012
> bttv0: using: BT878(Pinnacle PCTV Studio/Ra) [card=39,autodetected]
> i2c-core.o: adapter bt848 #0 registered as adapter 0.
> bttv0: i2c: checking for MSP34xx @ 0x80... not found
> bttv0: miro: id=27 tuner=16 radio=no stereo=no
> bttv0: i2c: checking for MSP34xx @ 0x80... not found
> bttv0: i2c: checking for TDA9875 @ 0xb0... not found
> bttv0: i2c: checking for TDA7432 @ 0x8a... not found
> tvaudio: TV audio decoder + audio/video mux driver
> tvaudio: known chips:
> tda9840,tda9873h,tda9874a,tda9850,tda9855,tea6300,tea6420,tda8425,pic16c54
> (PV951)
> i2c-core.o: driver generic i2c audio driver registered.
> i2c-core.o: driver i2c TV tuner driver registered.
> tuner: chip found @ 0xc2
> bttv0: i2c attach [client=Philips SECAM,ok]
> i2c-core.o: client [Philips SECAM] registered to adapter [bt848 #0](pos. 0).
> bttv0: PLL: 28636363 => 35468950 ... ok
>
> and
>
> btaudio: driver version 0.7 loaded [digital+analog]
> PCI: Found IRQ 12 for device 00:0b.1
> PCI: Sharing IRQ 12 with 00:0b.0
> btaudio: Bt878 (rev 17) at 00:0b.1, irq: 12, latency: 32, mmio: 0xd9002000
> btaudio: using card config "default"
> btaudio: registered device dsp0 [digital]
> btaudio: registered device dsp1 [analog]
> btaudio: open analog dsp [35]
>
> btaudio: fmt: bits=16
>
> btaudio: stereo=0 channels=1
>
> btaudio: rate: req=44100 dec=10 shift=2 hwrate=179200 swrate=44800
>
> btaudio: bufsize=131072 - bs=8192 bc=16 - ls=2048, lc=64
>
> btaudio: recording started
>
> btaudio: recording stopped
>
>
> Thanks in advance.
>
>
>
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