[mythtv-users] Nebula DVB-T card, working but no sound (long)
Jon Whitear
jon at whitear.org
Wed Apr 14 05:20:37 EDT 2004
Rob,
If you can get sound in mplayer using dvbstream, there's nothing wrong
with your sound config.
Martin Smith's setup guide for MythTV and DVB is good, and will explain
translating a channels.conf to Myth's channel editor. It's at:-
http://www.ethics-gradient.net/myth/mythdvb.html
You can get a channels.conf by using the scan utility (from the Linux
DVB apps package at linuxtv.org). I believe it includes a frequencies
file for the Crystal Palace transmitter.
Cheers,
Jon
-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Rob Willett
Sent: Wednesday, 14 April 2004 5:00 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] Nebula DVB-T card, working but no sound
(long)
Paul,
I think you've hit the nail on the head. The DVB parameters were 'given'
to me as appropriate for me living near to Crystal Place in London.
Looking at them again they don't seem to be right.
I've modified some of the parameters and I can now get sound at least
for BBC1 and BBC2, for some reason ITV, five and Channel 4 don;t work
yet. I'll keep at it but if I can get sound for one channel then I know
that it's not the hardware/kernel config.
All I now have to do is work out what the channel.conf really means and
how to translate that into the DVB parameters.
Any ideas greatly welcomed.
Best wishes,
Rob.
Paul Volkaerts wrote:
>I have a Nebula card running in a Pundit and have never had any sound
>problems - just worked. Using 2.4.23 kernel, bttv 0.9.12, alsa drivers
>(can't remember version but let me know if you think its important and
I'll
>look).
>
>On mythbackend I get ...
>
>Audiostream: Layer: 2 BRate: 256kb/s Freq 48.0KHz
>Videostream: ASPECT 16:9 Size: 720x576 .....
>
>So I think this is your problem. You sure you got the dvb_pids
parameters
>in the SQL DB right? Mine are attached; though I took this backup a
while
>ago so don't guarantee its wholly accurate!
>
>
>
>Paul
>
>
>-----Original Message-----
>From: mythtv-users-bounces at mythtv.org
>[mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Rob Willett
>Sent: 13 April 2004 18:40
>To: mythtv-users at mythtv.org
>Subject: [mythtv-users] Nebula DVB-T card, working but no sound (long)
>
>
>Hi,
>
>I have got the Nebula DVB-T PCI card working with video successully
>under mythTV 0.14 but no sound.
>
>I'm getting more and more confused as everything else I test it with
has
>the sound working OK.
>
>e.g.
>
> From http://www.ethics-gradient.net/myth/mythdvb.html
>
># tzap "BBC ONE"
># dvbstream -o -ps -qam 16 -cr 3_4 600 601 | mplayer -
>
>works OK, I see a picture and I hear sound. It looks great, far better
>than an analogue picture.
>
>I've compiled VDR with the PLUGIN softdevice and that plays OK with
sound.
>
>I've compiled mythdvd and that works OK with sound.
>I'm running 2.4.24 kernel with the latest DVB from CVS, bttv 0.9.13
>patched with the information from
>http://www.mail-archive.com/linux-dvb@linuxtv.org/msg10969.html
>I've imstalled all the alsa drivers from 1.0.4 and they work OK. I've
>got the alsa-mixer working Ok and can turn the volume up and down.
>
>Apologies for the length of this e-mail but I have tried to provide as
>much information as possible!
>
>The hardware is a Asrock K7S8X with an AMD 2800 chip. This MB has an
>on-board sound chip, the SiS7012. The graphics card is a Chaintech
>MX440, basically a cheap nvidia card.
>
>lspci looks like this. I think this looks OK.
>
>00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device
>0746 (rev 10)
> Subsystem: Unknown device 1849:0746
> Flags: bus master, medium devsel, latency 0
> Memory at d0000000 (32-bit, non-prefetchable) [size=64M]
> Capabilities: [c0] AGP version 3.0
>
>00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202 (prog-if
>00 [Normal decode])
> Flags: bus master, fast devsel, latency 32
> Bus: primary=00, secondary=01, subordinate=02, sec-latency=32
> Memory behind bridge: cdd00000-cfefffff
> Prefetchable memory behind bridge: bda00000-cdbfffff
>
>00:02.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev
25)
> Flags: bus master, medium devsel, latency 0
>
>00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
>(prog-if 80 [Master])
> Subsystem: Unknown device 1849:5513
> Flags: bus master, medium devsel, latency 128
> I/O ports at ff00 [size=16]
>
>00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS]
>SiS7012 PCI Audio Accelerator (rev a0)
> Subsystem: Unknown device 1849:7012
> Flags: bus master, medium devsel, latency 32, IRQ 10
> I/O ports at dc00 [size=256]
> I/O ports at d800 [size=128]
> Capabilities: [48] Power Management version 2
>
>00:03.0 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB
>Controller (rev 0f) (prog-if 10 [OHCI])
> Subsystem: Unknown device 1849:7001
> Flags: bus master, medium devsel, latency 32, IRQ 11
> Memory at cfffd000 (32-bit, non-prefetchable) [size=4K]
>
>00:03.1 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB
>Controller (rev 0f) (prog-if 10 [OHCI])
> Subsystem: Unknown device 1849:7001
> Flags: bus master, medium devsel, latency 32, IRQ 3
> Memory at cfffe000 (32-bit, non-prefetchable) [size=4K]
>
>00:03.2 USB Controller: Silicon Integrated Systems [SiS] SiS7002 USB
2.0
>(prog-if 20 [EHCI])
> Subsystem: Unknown device 1849:7001
> Flags: bus master, medium devsel, latency 32, IRQ 5
> Memory at cffff000 (32-bit, non-prefetchable) [size=4K]
> Capabilities: [50] Power Management version 2
>
>00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900
>10/100 Ethernet (rev 90)
> Subsystem: Unknown device 1849:8201
> Flags: bus master, medium devsel, latency 32, IRQ 11
> I/O ports at d400 [size=256]
> Memory at cfffc000 (32-bit, non-prefetchable) [size=4K]
> Expansion ROM at fffe0000 [disabled] [size=128K]
> Capabilities: [40] Power Management version 2
>
>00:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video
>Capture (rev 11)
> Subsystem: Unknown device 0071:0101
> Flags: bus master, medium devsel, latency 32, IRQ 5
> Memory at cdcfe000 (32-bit, prefetchable) [size=4K]
> Capabilities: [44] Vital Product Data
> Capabilities: [4c] Power Management version 2
>
>00:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio
Capture
>(rev 11)
> Subsystem: Unknown device 0071:0101
> Flags: bus master, medium devsel, latency 32, IRQ 5
> Memory at cdcff000 (32-bit, prefetchable) [size=4K]
> Capabilities: [44] Vital Product Data
> Capabilities: [4c] Power Management version 2
>
>01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX
>440 AGP 8x] (rev c1) (prog-if 00 [VGA])
> Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 11
> Memory at ce000000 (32-bit, non-prefetchable) [size=16M]
> Memory at c0000000 (32-bit, prefetchable) [size=128M]
> Expansion ROM at cfee0000 [disabled] [size=128K]
> Capabilities: [60] Power Management version 2
> Capabilities: [44] AGP version 3.0
>
>my /etc/modules.conf looks OK
>
>alias eth0 sis900
>alias usb-controller usb-ohci
>alias usb-controller1 ehci-hcd
>alias char-major-81 bttv
># --- BEGIN: Generated by ALSACONF, do not edit. ---
># --- ALSACONF verion 1.0.4 ---
>alias char-major-116 snd
>alias char-major-14 soundcore
>alias sound-service-0-0 snd-mixer-oss
>alias sound-service-0-1 snd-seq-oss
>alias sound-service-0-3 snd-pcm-oss
>alias sound-service-0-8 snd-seq-oss
>alias sound-service-0-12 snd-pcm-oss
>alias snd-card-0 snd-intel8x0
>alias sound-slot-0 snd-intel8x0
># --- END: Generated by ALSACONF, do not edit. ---
>
>alias char-major-195 nvidia
>
>I think this is a problem in mythbackend.
>
>2004-04-13 17:59:51 DVB#0 Successfully tuned to channel 1.
>Videostream: ASPECT: 16:9 Size = 720x576 FRate: 25 fps BRate: 6.50
>Mbit/s
> >>>>>> Audiostream: Layer: 1 Bit rate: free Freq: 0.0 kHz <<<<<<< Is
>this right?
>2004-04-13 17:59:57 Changing from WatchingLiveTV to None
>
>
>I get this when from the mythfrontend program:
>
>2004-04-13 17:59:44 mythfrontend version: 0.14.20040123-1
www.mythtv.org
>2004-04-13 17:59:44 Enabled verbose msgs : important general
>2004-04-13 17:59:44 Registering Internal as a media playback plugin.
>2004-04-13 17:59:46 Connecting to backend server: 127.0.0.1:6543 (try 1
>of 5)
>2004-04-13 17:59:46 Using protocol version 1
>2004-04-13 17:59:46 Using protocol version 1
>2004-04-13 17:59:46 Using protocol version 1
>Input #0, mpeg, from 'rbuf://127.0.0.1:6543/video/buffer/ringbuf1.nuv':
>Stream #0.0: Video: mpeg2video, 720x576, 25.00 fps
> >>>>>>>>Stream #0.1: Audio: mp2, 48000 Hz, mono, 64 kb/s <<<<<<<< This
>seems to say that it can see the audio stream!
>2004-04-13 17:59:48 Opening OSS audio device '/dev/dsp'.
>2004-04-13 17:59:48 Using XV port 105
>2004-04-13 17:59:48 Changing from None to WatchingLiveTV
>QDateTime::fromString: Parameter out of range
>QDateTime::fromString: Parameter out of range
>2004-04-13 17:59:56 prebuffering pause
>[mpeg2video @ 0x828e2f8]ac-tex damaged at 3 9
>[mpeg2video @ 0x828e2f8]concealing errors
>[mpeg2video @ 0x828e2f8]Warning MVs not available
>2004-04-13 17:59:57 Changing from WatchingLiveTV to None
>2004-04-13 17:59:57 Changing from None to None
>
>The part of /var/log/messages that looks appropriate is
>Apr 13 16:58:31 mythtv kernel: Linux video capture interface: v1.00
>Apr 13 16:58:31 mythtv kernel: bttv: driver version 0.9.12 loaded
>Apr 13 16:58:31 mythtv kernel: bttv: using 8 buffers with 2080k (520
>pages) each for capture
>Apr 13 16:58:31 mythtv kernel: bttv: Bt8xx card found (0).
>Apr 13 16:58:31 mythtv kernel: PCI: Found IRQ 5 for device 00:09.0
>Apr 13 16:58:31 mythtv kernel: PCI: Sharing IRQ 5 with 00:09.1
>Apr 13 16:58:31 mythtv kernel: bttv0: Bt878 (rev 17) at 00:09.0, irq:
5,
>latency: 32, mmio: 0xcdcfe000
>Apr 13 16:58:31 mythtv kernel: bttv0: detected: Nebula Electronics
>DigiTV [card=104], PCI subsystem ID is 0
>071:0101
>Apr 13 16:58:31 mythtv kernel: bttv0: using: Nebula Electronics DigiTV
>[card=104,insmod option]
>Apr 13 16:58:31 mythtv kernel: i2c-dev.o: Registered 'bt878 #0 [sw]' as
>minor 0
>Apr 13 16:58:31 mythtv kernel: i2c-core.o: adapter bt878 #0 [sw]
>registered as adapter 0.
>Apr 13 16:58:31 mythtv kernel: bttv0: using tuner=-1
>Apr 13 16:58:31 mythtv kernel: bttv0: registered device video0
>Apr 13 16:58:31 mythtv kernel: bttv0: registered device vbi0
>Apr 13 16:58:31 mythtv kernel: bttv0: PLL: 28636363 => 35468950 . ok
>Apr 13 16:58:31 mythtv kernel: bt878: AUDIO driver version 0.0.0 loaded
>Apr 13 16:58:31 mythtv kernel: bt878: Bt878 AUDIO function found (0).
>Apr 13 16:58:31 mythtv kernel: PCI: Found IRQ 5 for device 00:09.1
>Apr 13 16:58:31 mythtv kernel: PCI: Sharing IRQ 5 with 00:09.0
>Apr 13 16:58:31 mythtv kernel: bt878(0): Bt878 (rev 17) at 00:09.1,
irq:
>5, latency: 32, memory: 0xcdcff000
>Apr 13 16:58:31 mythtv kernel: DVB: registering new adapter (Neb).
>Apr 13 16:58:31 mythtv kernel: DVB: registering frontend 0:0 (NxtWave
>NXT6000)...
>
>my lsmod looks OK to my untutored eye.
>snd-pcm-oss 44068 0 (autoclean)
>dvb-bt8xx 5332 0
>bt878 7568 0 [dvb-bt8xx]
>nxt6000 8812 1
>dvb-core 75604 0 [dvb-bt8xx nxt6000]
>bttv 120032 0 [dvb-bt8xx bt878]
>video-buf 18176 0 [bttv]
>videodev 9216 2 [bttv]
>v4l1-compat 13508 0 (unused)
>btcx-risc 3884 0 [bttv]
>v4l2-common 5376 0 [bttv]
>snd-mixer-oss 16408 1 (autoclean) [snd-pcm-oss]
>nvidia 2124064 6 (autoclean)
>snd-intel8x0 24100 1 (autoclean)
>snd-ac97-codec 59868 0 (autoclean) [snd-intel8x0]
>snd-pcm 83616 0 (autoclean) [snd-pcm-oss
snd-intel8x0]
>snd-timer 19940 0 (autoclean) [snd-pcm]
>snd-page-alloc 9236 0 (autoclean) [snd-intel8x0 snd-pcm]
>snd-mpu401-uart 5264 0 (autoclean) [snd-intel8x0]
>snd-rawmidi 18912 0 (autoclean) [snd-mpu401-uart]
>snd-seq-device 6236 0 (autoclean) [snd-rawmidi]
>snd 47044 0 (autoclean) [snd-pcm-oss
snd-mixer-oss
>snd-intel8x0 snd-ac97-codec snd-pcm snd-timer snd-mpu401-uart
>snd-rawmidi snd-seq-device]
>soundcore 6468 4 (autoclean) [bttv snd]
>parport_pc 16228 1
>
>I was wondering about the lack of btaudio module. Reading through the
>mythtv docs it mentions btaudio as needed when using cards without a
>lineout module, the Nebula DigiTV card being an example. However the
>latest version of bttv doesn't seem to have btaudio in it and I can't
>insert the module btaudio into the system if the latest bttv drivers
are
>installed. I have hunted high and low for information about btaduio but
>never really got to the bottom of whether it is needed or not.
>
>Do I need btaudio to be loaded as a module or not to have sound coming
>through the PCI bus? Does the latest version of bttv handle all of this
>anyway? Why does VDR work and not mythtv? Aaggghhhhh.....
>
>best wishes,
>
>Rob.
>
>_______________________________________________
>mythtv-users mailing list
>mythtv-users at mythtv.org
>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>-----------------------------------------------------------------------
-
>
>use mythconverg;
>
>INSERT INTO dvb_channel VALUES
(1000,1000,NULL,0,NULL,626166666,'0',NULL,'2/3','V',NULL,'qam_64','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1013,1013,NULL,0,NULL,706000000,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1014,1014,NULL,0,NULL,706000000,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1015,1015,NULL,0,NULL,674166666,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1016,1016,NULL,0,NULL,650166666,'0',NULL,'2/3','V',NULL,'qam_64','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1017,1017,NULL,0,NULL,626166666,'0',NULL,'2/3','V',NULL,'qam_64','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1021,1021,NULL,0,NULL,650166666,'0',NULL,'2/3','V',NULL,'qam_64','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1022,1022,NULL,0,NULL,650166666,'0',NULL,'2/3','V',NULL,'qam_64','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1028,1028,NULL,0,NULL,658166666,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1029,1029,NULL,0,NULL,674166666,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1030,1030,NULL,0,NULL,626166666,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>INSERT INTO dvb_channel VALUES
(1039,1039,NULL,0,NULL,658166666,'0',NULL,'3/4','V',NULL,'qam_16','8','1
/2','2','1/32','n');
>
>
>INSERT INTO dvb_pids VALUES (1000,6161,'v','');
>INSERT INTO dvb_pids VALUES (1013,620,'v','');
>INSERT INTO dvb_pids VALUES (1014,620,'v','');
>INSERT INTO dvb_pids VALUES (1015,201,'v','');
>INSERT INTO dvb_pids VALUES (1016,2822,'v','');
>INSERT INTO dvb_pids VALUES (1017,6017,'v','');
>INSERT INTO dvb_pids VALUES (1021,2822,'v','');
>INSERT INTO dvb_pids VALUES (1022,2818,'v','');
>INSERT INTO dvb_pids VALUES (1028,201,'v','');
>INSERT INTO dvb_pids VALUES (1029,0,'v','');
>INSERT INTO dvb_pids VALUES (1030,6059,'v','');
>INSERT INTO dvb_pids VALUES (1039,101,'v','');
>INSERT INTO dvb_pids VALUES (1000,6162,'a','');
>INSERT INTO dvb_pids VALUES (1013,621,'a','');
>INSERT INTO dvb_pids VALUES (1014,621,'a','');
>INSERT INTO dvb_pids VALUES (1015,401,'a','');
>INSERT INTO dvb_pids VALUES (1016,2823,'a','');
>INSERT INTO dvb_pids VALUES (1017,6018,'a','');
>INSERT INTO dvb_pids VALUES (1021,2823,'a','');
>INSERT INTO dvb_pids VALUES (1022,2819,'a','');
>INSERT INTO dvb_pids VALUES (1028,202,'a','');
>INSERT INTO dvb_pids VALUES (1029,403,'a','');
>INSERT INTO dvb_pids VALUES (1030,6050,'a','');
>INSERT INTO dvb_pids VALUES (1039,102,'a','');
>
>
>
>-----------------------------------------------------------------------
-
>
>_______________________________________________
>mythtv-users mailing list
>mythtv-users at mythtv.org
>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
_______________________________________________
mythtv-users mailing list
mythtv-users at mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
More information about the mythtv-users
mailing list