* [linux-dvb] Distorted analog sound when using an HVR-3000
@ 2008-11-21 9:15 Eduard Huguet
2008-11-21 16:26 ` Darron Broad
0 siblings, 1 reply; 14+ messages in thread
From: Eduard Huguet @ 2008-11-21 9:15 UTC (permalink / raw)
To: linux-dvb
[-- Attachment #1.1: Type: text/plain, Size: 494 bytes --]
Hi,
I'm testing a Hauppauge HVR-3000 for its use with MythTV, and I'm
observing that I have a completely distorted sound when using any of the
analog inputs (TV, S-Video or Composite). The sound is completely crackly,
not understanble at all, just noise. I've teste 2 different cards, so I'm
pretty sure it's not a "faulty card" issue.
This happens both in MythTV or when using directly mplayer to capture video
& audio.
I'm using an up-to-date HG DVB repository.
Best regards,
Eduard
[-- Attachment #1.2: Type: text/html, Size: 587 bytes --]
[-- Attachment #2: Type: text/plain, Size: 150 bytes --]
_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
^ permalink raw reply [flat|nested] 14+ messages in thread* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-21 9:15 [linux-dvb] Distorted analog sound when using an HVR-3000 Eduard Huguet @ 2008-11-21 16:26 ` Darron Broad 2008-11-21 19:10 ` Eduard Huguet 2008-11-24 11:46 ` Eduard Huguet 0 siblings, 2 replies; 14+ messages in thread From: Darron Broad @ 2008-11-21 16:26 UTC (permalink / raw) To: Eduard Huguet; +Cc: linux-dvb In message <617be8890811210115x46b99879l7b78fcf7a1d59357@mail.gmail.com>, "Eduard Huguet" wrote: LO >Hi, > I'm testing a Hauppauge HVR-3000 for its use with MythTV, and I'm >observing that I have a completely distorted sound when using any of the >analog inputs (TV, S-Video or Composite). The sound is completely crackly, >not understanble at all, just noise. I've teste 2 different cards, so I'm >pretty sure it's not a "faulty card" issue. > >This happens both in MythTV or when using directly mplayer to capture video >& audio. > >I'm using an up-to-date HG DVB repository. There are some known problem with cards using the WM8775 codec. Use this repo here: http://hg.kewl.org/v4l-dvb/ It changes how the WM8775 operates and you will be able to control the input levels using v4l2-ctl. Please tell me if this solves your problems. Good luck -- // / {:)==={ Darron Broad <darron@kewl.org> \\ \ _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-21 16:26 ` Darron Broad @ 2008-11-21 19:10 ` Eduard Huguet 2008-11-21 22:17 ` yoshi watanabe 2008-11-24 11:46 ` Eduard Huguet 1 sibling, 1 reply; 14+ messages in thread From: Eduard Huguet @ 2008-11-21 19:10 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 1141 bytes --] Thanks for your info. I'll give it a test next Monday and post here the results. Best regards, Eduard Huguet 2008/11/21 Darron Broad <darron@kewl.org> > In message <617be8890811210115x46b99879l7b78fcf7a1d59357@mail.gmail.com>, > "Eduard Huguet" wrote: > > LO > > >Hi, > > I'm testing a Hauppauge HVR-3000 for its use with MythTV, and I'm > >observing that I have a completely distorted sound when using any of the > >analog inputs (TV, S-Video or Composite). The sound is completely crackly, > >not understanble at all, just noise. I've teste 2 different cards, so I'm > >pretty sure it's not a "faulty card" issue. > > > >This happens both in MythTV or when using directly mplayer to capture > video > >& audio. > > > >I'm using an up-to-date HG DVB repository. > > There are some known problem with cards using the WM8775 codec. > > Use this repo here: > http://hg.kewl.org/v4l-dvb/ > > It changes how the WM8775 operates and you will be able to > control the input levels using v4l2-ctl. > > Please tell me if this solves your problems. > > Good luck > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 1879 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-21 19:10 ` Eduard Huguet @ 2008-11-21 22:17 ` yoshi watanabe 2008-11-21 23:31 ` Darron Broad 0 siblings, 1 reply; 14+ messages in thread From: yoshi watanabe @ 2008-11-21 22:17 UTC (permalink / raw) To: linux-dvb On 11/21/08, Eduard Huguet <eduardhc@gmail.com> wrote: > Thanks for your info. I'll give it a test next Monday and post here the > results. > > Best regards, > Eduard Huguet > > > > 2008/11/21 Darron Broad <darron@kewl.org> > >> In message <617be8890811210115x46b99879l7b78fcf7a1d59357@mail.gmail.com>, >> "Eduard Huguet" wrote: >> >> LO >> >> >Hi, >> > I'm testing a Hauppauge HVR-3000 for its use with MythTV, and I'm >> >observing that I have a completely distorted sound when using any of the >> >analog inputs (TV, S-Video or Composite). The sound is completely >> > crackly, >> >not understanble at all, just noise. I've teste 2 different cards, so I'm >> >pretty sure it's not a "faulty card" issue. >> > >> >This happens both in MythTV or when using directly mplayer to capture >> video >> >& audio. >> > >> >I'm using an up-to-date HG DVB repository. >> >> There are some known problem with cards using the WM8775 codec. >> >> Use this repo here: >> http://hg.kewl.org/v4l-dvb/ >> >> It changes how the WM8775 operates and you will be able to >> control the input levels using v4l2-ctl. >> >> Please tell me if this solves your problems. >> >> Good luck >> >> -- >> >> // / >> {:)==={ Darron Broad <darron@kewl.org> >> \\ \ >> >> > hi there, just wanted to pop in and inform that audio finally works perfectly on hvr-1300 with analog tv antenna input (europe, poland, PAL-DK) when using drivers from that branch. i still have to do the arecord | aplay trick, though. ( http://godard.b.free.fr/dotclear/index.php?2007/04/04/13-hauppauge-wintv-hvr1300-under-linux ). mixer control does not seem to be working with tvtime, but i can still use the audio card on my box - so no big problem here. i'll test s-video later with playstation2, but i think things are finally looking quite good for hvr-1300 linux users ;-) _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-21 22:17 ` yoshi watanabe @ 2008-11-21 23:31 ` Darron Broad 0 siblings, 0 replies; 14+ messages in thread From: Darron Broad @ 2008-11-21 23:31 UTC (permalink / raw) To: yoshi watanabe; +Cc: linux-dvb In message <51029ae90811211417x75e042d1tf247ae8e2387ee15@mail.gmail.com>, "yoshi watanabe" wrote: lo >On 11/21/08, Eduard Huguet <eduardhc@gmail.com> wrote: >> Thanks for your info. I'll give it a test next Monday and post here the >> results. >> >> Best regards, >> Eduard Huguet >> >> >> >> 2008/11/21 Darron Broad <darron@kewl.org> >> >>> In message <617be8890811210115x46b99879l7b78fcf7a1d59357@mail.gmail.com>, >>> "Eduard Huguet" wrote: >>> >>> LO >>> >>> >Hi, >>> > I'm testing a Hauppauge HVR-3000 for its use with MythTV, and I'm >>> >observing that I have a completely distorted sound when using any of the >>> >analog inputs (TV, S-Video or Composite). The sound is completely >>> > crackly, >>> >not understanble at all, just noise. I've teste 2 different cards, so I'm >>> >pretty sure it's not a "faulty card" issue. >>> > >>> >This happens both in MythTV or when using directly mplayer to capture >>> video >>> >& audio. >>> > >>> >I'm using an up-to-date HG DVB repository. >>> >>> There are some known problem with cards using the WM8775 codec. >>> >>> Use this repo here: >>> http://hg.kewl.org/v4l-dvb/ >>> >>> It changes how the WM8775 operates and you will be able to >>> control the input levels using v4l2-ctl. >>> >>> Please tell me if this solves your problems. >>> >>> Good luck >>> >>> -- >>> >>> // / >>> {:)==={ Darron Broad <darron@kewl.org> >>> \\ \ >>> >>> >> >hi there, just wanted to pop in and inform that audio finally works >perfectly on hvr-1300 with analog tv antenna input (europe, poland, >PAL-DK) when using drivers from that branch. Ok good news. Thanks for sharing this information. >i still have to do the arecord | aplay trick, though. ( >http://godard.b.free.fr/dotclear/index.php?2007/04/04/13-hauppauge-wintv-hvr1300-under-linux >). This isn't so much a trick as more a requirement. AFAIK tvtime only adjusts the audio level of your sound card and doesn't actually sample audio and play it back. >mixer control does not seem to be working with tvtime, but i can still >use the audio card on my box - so no big problem here. You could alternatively use mplayer to view TV. See under Audio/Video capture here: http://linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-4000 BTW, don't try to tune TV with mplayer on the MPEG device node as it will produce an OOPS. MPEG tv playback and capture should also work now in MYTHTV. At least it does for me. >i'll test s-video later with playstation2, but i think things are >finally looking quite good for hvr-1300 linux users ;-) It should work okay. This is the kind of thing I have tested except in my case with an ancient commodore PLUS/4 and not a PS2 :-) cya! -- // / {:)==={ Darron Broad <darron@kewl.org> \\ \ _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-21 16:26 ` Darron Broad 2008-11-21 19:10 ` Eduard Huguet @ 2008-11-24 11:46 ` Eduard Huguet 2008-11-24 12:17 ` Darron Broad 1 sibling, 1 reply; 14+ messages in thread From: Eduard Huguet @ 2008-11-24 11:46 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 1761 bytes --] Nothing :(. The results are exactly the same: when I use the analog TV input, the sound is bad but understable, but somehow "high pitched" fro some reason. When using s-video or composite (this, capturing sound from LineIn input) the sound is completely broken: I'm getting only crackling noise, ocassionaly disrupted by some fragments of which it should be the original input sound... This happens both in MythTV and when using mplayer, like i.e. using the following command line: mplayer tv:// -tv driver=v4l2:device=/dev/video0:norm=PAL-BG:\ input=1:alsa:adevice=hw.1,0:amode=1:volume=50:immediatemode=0:buffersize=3 Any ideas? I'm using a fresh copy of http://hg.kewl.org/v4l-dvb/ repository. Best regards, Eduard Huguet 2008/11/21 Darron Broad <darron@kewl.org> > In message <617be8890811210115x46b99879l7b78fcf7a1d59357@mail.gmail.com>, > "Eduard Huguet" wrote: > > LO > > >Hi, > > I'm testing a Hauppauge HVR-3000 for its use with MythTV, and I'm > >observing that I have a completely distorted sound when using any of the > >analog inputs (TV, S-Video or Composite). The sound is completely crackly, > >not understanble at all, just noise. I've teste 2 different cards, so I'm > >pretty sure it's not a "faulty card" issue. > > > >This happens both in MythTV or when using directly mplayer to capture > video > >& audio. > > > >I'm using an up-to-date HG DVB repository. > > There are some known problem with cards using the WM8775 codec. > > Use this repo here: > http://hg.kewl.org/v4l-dvb/ > > It changes how the WM8775 operates and you will be able to > control the input levels using v4l2-ctl. > > Please tell me if this solves your problems. > > Good luck > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 2658 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-24 11:46 ` Eduard Huguet @ 2008-11-24 12:17 ` Darron Broad 2008-11-24 12:23 ` Eduard Huguet 0 siblings, 1 reply; 14+ messages in thread From: Darron Broad @ 2008-11-24 12:17 UTC (permalink / raw) To: Eduard Huguet; +Cc: linux-dvb In message <617be8890811240346r3aae6f31rfab45804419bfade@mail.gmail.com>, "Eduard Huguet" wrote: hi >Nothing :(. The results are exactly the same: when I use the analog TV >input, the sound is bad but understable, but somehow "high pitched" fro some >reason. okay. as it stands, analogue TV audio isn't affected by these changes so no change here is expected. i could see about changing this if you could live with mono only. however, this really would depend on whether any of this works for you at all... >When using s-video or composite (this, capturing sound from LineIn input) >the sound is completely broken: I'm getting only crackling noise, >ocassionaly disrupted by some fragments of which it should be the original >input sound... if this is the same problem as which has been addressed for analogue input (LINE-IN) for me on both an hvr-1300 and hvr-4000 then you can try to attenuate the input level even more to see if it improves things. >This happens both in MythTV and when using mplayer, like i.e. using the >following command line: > >mplayer tv:// -tv driver=v4l2:device=/dev/video0:norm=PAL-BG:\ >input=1:alsa:adevice=hw.1,0:amode=1:volume=50:immediatemode=0:buffersize=3 > >Any ideas? I'm using a fresh copy of http://hg.kewl.org/v4l-dvb/ repository. The volume level can be from 0 to 63 try something even lower (10). If the volume= option doesn't work as anticipated then try v4l2-ctl -d /dev/video --set-ctrl=volume=XX as well. We can look at other things if you have the time for it, e-mail me off-list and we can look work something out. cya -- // / {:)==={ Darron Broad <darron@kewl.org> \\ \ _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Distorted analog sound when using an HVR-3000 2008-11-24 12:17 ` Darron Broad @ 2008-11-24 12:23 ` Eduard Huguet 2008-11-24 14:26 ` [linux-dvb] Fwd: " Eduard Huguet 0 siblings, 1 reply; 14+ messages in thread From: Eduard Huguet @ 2008-11-24 12:23 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 2358 bytes --] Ok, I need to rectify, at least partially, my last message: as you have suggested now, the problem with s-video and composite audio capturing was that the external device volume was set too high, which was apparently saturating the audio input of the card. Lowering it was enough to capture crystal clear sound... in mplayer. In MythTV, now I have the problem that sound is playing strangelly high-pitched. I really don't know how to explain it... I'm going to perform some research to see if I can determine why sound is clear on mplayer and not under MythTV. Thanks for your help, Eduard 2008/11/24 Darron Broad <darron@kewl.org> > In message <617be8890811240346r3aae6f31rfab45804419bfade@mail.gmail.com>, > "Eduard Huguet" wrote: > > hi > > >Nothing :(. The results are exactly the same: when I use the analog TV > >input, the sound is bad but understable, but somehow "high pitched" fro > some > >reason. > > okay. as it stands, analogue TV audio isn't affected by these changes > so no change here is expected. i could see about changing this if you > could live with mono only. however, this really would depend on whether > any of this works for you at all... > > >When using s-video or composite (this, capturing sound from LineIn input) > >the sound is completely broken: I'm getting only crackling noise, > >ocassionaly disrupted by some fragments of which it should be the original > >input sound... > > if this is the same problem as which has been addressed for analogue > input (LINE-IN) for me on both an hvr-1300 and hvr-4000 then you can try to > attenuate the input level even more to see if it improves things. > > >This happens both in MythTV and when using mplayer, like i.e. using the > >following command line: > > > >mplayer tv:// -tv driver=v4l2:device=/dev/video0:norm=PAL-BG:\ > >input=1:alsa:adevice=hw.1,0:amode=1:volume=50:immediatemode=0:buffersize=3 > > > >Any ideas? I'm using a fresh copy of http://hg.kewl.org/v4l-dvb/repository. > > The volume level can be from 0 to 63 try something even lower (10). > If the volume= option doesn't work as anticipated then > try v4l2-ctl -d /dev/video --set-ctrl=volume=XX as well. > > We can look at other things if you have the time for it, e-mail me off-list > and we can look work something out. > > cya > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 3131 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* [linux-dvb] Fwd: Distorted analog sound when using an HVR-3000 2008-11-24 12:23 ` Eduard Huguet @ 2008-11-24 14:26 ` Eduard Huguet 2008-11-24 14:36 ` Darron Broad 0 siblings, 1 reply; 14+ messages in thread From: Eduard Huguet @ 2008-11-24 14:26 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 2807 bytes --] Ok, problem solved: I needed to define a V4L "recording profile" in MythTV, so sound gets correctly sampled at 48000. Once done, the sound is perfect. Thank you very much for your help. Kind regards, Eduard Huguet ---------- Forwarded message ---------- From: Eduard Huguet <eduardhc@gmail.com> Date: 2008/11/24 Subject: Re: [linux-dvb] Distorted analog sound when using an HVR-3000 To: Darron Broad <darron@kewl.org> Cc: linux-dvb@linuxtv.org Ok, I need to rectify, at least partially, my last message: as you have suggested now, the problem with s-video and composite audio capturing was that the external device volume was set too high, which was apparently saturating the audio input of the card. Lowering it was enough to capture crystal clear sound... in mplayer. In MythTV, now I have the problem that sound is playing strangelly high-pitched. I really don't know how to explain it... I'm going to perform some research to see if I can determine why sound is clear on mplayer and not under MythTV. Thanks for your help, Eduard 2008/11/24 Darron Broad <darron@kewl.org> In message <617be8890811240346r3aae6f31rfab45804419bfade@mail.gmail.com>, > "Eduard Huguet" wrote: > > hi > > >Nothing :(. The results are exactly the same: when I use the analog TV > >input, the sound is bad but understable, but somehow "high pitched" fro > some > >reason. > > okay. as it stands, analogue TV audio isn't affected by these changes > so no change here is expected. i could see about changing this if you > could live with mono only. however, this really would depend on whether > any of this works for you at all... > > >When using s-video or composite (this, capturing sound from LineIn input) > >the sound is completely broken: I'm getting only crackling noise, > >ocassionaly disrupted by some fragments of which it should be the original > >input sound... > > if this is the same problem as which has been addressed for analogue > input (LINE-IN) for me on both an hvr-1300 and hvr-4000 then you can try to > attenuate the input level even more to see if it improves things. > > >This happens both in MythTV and when using mplayer, like i.e. using the > >following command line: > > > >mplayer tv:// -tv driver=v4l2:device=/dev/video0:norm=PAL-BG:\ > >input=1:alsa:adevice=hw.1,0:amode=1:volume=50:immediatemode=0:buffersize=3 > > > >Any ideas? I'm using a fresh copy of http://hg.kewl.org/v4l-dvb/repository. > > The volume level can be from 0 to 63 try something even lower (10). > If the volume= option doesn't work as anticipated then > try v4l2-ctl -d /dev/video --set-ctrl=volume=XX as well. > > We can look at other things if you have the time for it, e-mail me off-list > and we can look work something out. > > cya > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 3920 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Fwd: Distorted analog sound when using an HVR-3000 2008-11-24 14:26 ` [linux-dvb] Fwd: " Eduard Huguet @ 2008-11-24 14:36 ` Darron Broad 2008-11-24 14:41 ` Eduard Huguet 2008-11-24 16:23 ` Eduard Huguet 0 siblings, 2 replies; 14+ messages in thread From: Darron Broad @ 2008-11-24 14:36 UTC (permalink / raw) To: Eduard Huguet; +Cc: linux-dvb In message <617be8890811240626y6452709bk34b276c21a9ea5c6@mail.gmail.com>, "Eduard Huguet" wrote: hiya. >Ok, problem solved: I needed to define a V4L "recording profile" in MythTV, >so sound gets correctly sampled at 48000. Once done, the sound is perfect. okay good. >Thank you very much for your help. Kind regards, no problem. BTW, do I understand that you needed these changes for S-VIDEO/COMPOSITE LINE-IN or did you solve the problem by just lowering the input volume from your input device? I don't have that opportunity personally with one DVD player. > Eduard Huguet bye -- // / {:)==={ Darron Broad <darron@kewl.org> \\ \ _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Fwd: Distorted analog sound when using an HVR-3000 2008-11-24 14:36 ` Darron Broad @ 2008-11-24 14:41 ` Eduard Huguet 2008-11-24 16:23 ` Eduard Huguet 1 sibling, 0 replies; 14+ messages in thread From: Eduard Huguet @ 2008-11-24 14:41 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 1021 bytes --] Hi, I'm going to perform some more tests by using the "official" driver in LInuxTV HG repository, because I'm really not sure of it. Maybe the driver was yet working fine before and all was a matter of finding the "correct" configuration to use. I'll let you know. Eduard 2008/11/24 Darron Broad <darron@kewl.org> > In message <617be8890811240626y6452709bk34b276c21a9ea5c6@mail.gmail.com>, > "Eduard Huguet" wrote: > > hiya. > > >Ok, problem solved: I needed to define a V4L "recording profile" in > MythTV, > >so sound gets correctly sampled at 48000. Once done, the sound is perfect. > > okay good. > > >Thank you very much for your help. Kind regards, > > no problem. > > BTW, do I understand that you needed these changes > for S-VIDEO/COMPOSITE LINE-IN or did you solve the problem by > just lowering the input volume from your input device? I don't > have that opportunity personally with one DVD player. > > > Eduard Huguet > > bye > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 1669 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Fwd: Distorted analog sound when using an HVR-3000 2008-11-24 14:36 ` Darron Broad 2008-11-24 14:41 ` Eduard Huguet @ 2008-11-24 16:23 ` Eduard Huguet 2008-11-24 16:44 ` Darron Broad 1 sibling, 1 reply; 14+ messages in thread From: Eduard Huguet @ 2008-11-24 16:23 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 1133 bytes --] Hi, I've tested you driver compared to the offcial LinuxTV HG tree, and I **think** (can be wrong, though...) that I'm getting "correct" audio when using a higher input volume. I mean, both drivers delivers crackly sound when given a high volume input, but yours seems to hold up a higher volume level before starting to fail. I hope this means anything to you... :D Regards, Eduard 2008/11/24 Darron Broad <darron@kewl.org> > In message <617be8890811240626y6452709bk34b276c21a9ea5c6@mail.gmail.com>, > "Eduard Huguet" wrote: > > hiya. > > >Ok, problem solved: I needed to define a V4L "recording profile" in > MythTV, > >so sound gets correctly sampled at 48000. Once done, the sound is perfect. > > okay good. > > >Thank you very much for your help. Kind regards, > > no problem. > > BTW, do I understand that you needed these changes > for S-VIDEO/COMPOSITE LINE-IN or did you solve the problem by > just lowering the input volume from your input device? I don't > have that opportunity personally with one DVD player. > > > Eduard Huguet > > bye > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 1775 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Fwd: Distorted analog sound when using an HVR-3000 2008-11-24 16:23 ` Eduard Huguet @ 2008-11-24 16:44 ` Darron Broad 2008-11-24 16:53 ` Eduard Huguet 0 siblings, 1 reply; 14+ messages in thread From: Darron Broad @ 2008-11-24 16:44 UTC (permalink / raw) To: Eduard Huguet; +Cc: linux-dvb In message <617be8890811240823x51995503jd1de6337e11bd90@mail.gmail.com>, "Eduard Huguet" wrote: > >Hi, lo > I've tested you driver compared to the offcial LinuxTV HG tree, and I >**think** (can be wrong, though...) that I'm getting "correct" audio when >using a higher input volume. I mean, both drivers delivers crackly sound >when given a high volume input, but yours seems to hold up a higher volume >level before starting to fail. just to explain what the changes actually do: the wm8775 in v4l-dvb has a fixed gain which uses a form of AGC circuit to center to gain someplace above 0dB. this function is fixed. my changes to not activate that feature and by defailt the gain is set to 0dB. >I hope this means anything to you... :D sort of yes. before and after I could get distortion in some audio passages, however, by utilising v4l2-ctl to set the gain to -6dB those passages become clear. this will be input dependant. I don't really have a lot of test cases to provide you with and haven't done much investigation into the optimum setting. you can test this more easily using the newly working FM radio (does it work in the hvr-3000) in kradio which has a radio volume control. cya -- // / {:)==={ Darron Broad <darron@kewl.org> \\ \ _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: [linux-dvb] Fwd: Distorted analog sound when using an HVR-3000 2008-11-24 16:44 ` Darron Broad @ 2008-11-24 16:53 ` Eduard Huguet 0 siblings, 0 replies; 14+ messages in thread From: Eduard Huguet @ 2008-11-24 16:53 UTC (permalink / raw) To: Darron Broad; +Cc: linux-dvb [-- Attachment #1.1: Type: text/plain, Size: 1461 bytes --] I'll give a try on kradio, and let you know any results. Best regards, Eduard 2008/11/24 Darron Broad <darron@kewl.org> > In message <617be8890811240823x51995503jd1de6337e11bd90@mail.gmail.com>, > "Eduard Huguet" wrote: > > > >Hi, > > lo > > > I've tested you driver compared to the offcial LinuxTV HG tree, and I > >**think** (can be wrong, though...) that I'm getting "correct" audio when > >using a higher input volume. I mean, both drivers delivers crackly sound > >when given a high volume input, but yours seems to hold up a higher volume > >level before starting to fail. > > just to explain what the changes actually do: > > the wm8775 in v4l-dvb has a fixed gain which uses a form of AGC > circuit to center to gain someplace above 0dB. this function is > fixed. > > my changes to not activate that feature and by defailt the gain > is set to 0dB. > > >I hope this means anything to you... :D > > sort of yes. before and after I could get distortion in some > audio passages, however, by utilising v4l2-ctl to set the gain > to -6dB those passages become clear. this will be input > dependant. I don't really have a lot of test cases to provide > you with and haven't done much investigation into the optimum > setting. > > you can test this more easily using the newly working FM > radio (does it work in the hvr-3000) in kradio which has > a radio volume control. > > cya > > -- > > // / > {:)==={ Darron Broad <darron@kewl.org> > \\ \ > > [-- Attachment #1.2: Type: text/html, Size: 2116 bytes --] [-- Attachment #2: Type: text/plain, Size: 150 bytes --] _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb ^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2008-11-24 17:08 UTC | newest] Thread overview: 14+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2008-11-21 9:15 [linux-dvb] Distorted analog sound when using an HVR-3000 Eduard Huguet 2008-11-21 16:26 ` Darron Broad 2008-11-21 19:10 ` Eduard Huguet 2008-11-21 22:17 ` yoshi watanabe 2008-11-21 23:31 ` Darron Broad 2008-11-24 11:46 ` Eduard Huguet 2008-11-24 12:17 ` Darron Broad 2008-11-24 12:23 ` Eduard Huguet 2008-11-24 14:26 ` [linux-dvb] Fwd: " Eduard Huguet 2008-11-24 14:36 ` Darron Broad 2008-11-24 14:41 ` Eduard Huguet 2008-11-24 16:23 ` Eduard Huguet 2008-11-24 16:44 ` Darron Broad 2008-11-24 16:53 ` Eduard Huguet
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox