Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-05-21 Thread Steven Elliott
On Mon, 2012-05-21 at 18:15 -0500, Pierre-Louis Bossart wrote: > > 1) TVtime (that's what the original poster uses): doesn't handle audio > > at all (but I was told that there is a fork that does), assumes that > > there is a zero-latency analog wire coming from the TV tuner audio > > output to the

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-05-21 Thread Steven Elliott
On Mon, 2012-05-21 at 21:09 +0600, Alexander E. Patrakov wrote: > 2012/5/21 Pierre-Louis Bossart : > > I am not sure if there's really a problem. Increasing the audio latency > > doesn't necessarily result in A/V sync issues. As long as the A/V sync is > > done by querying how many samples are queu

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-05-21 Thread Pierre-Louis Bossart
1) TVtime (that's what the original poster uses): doesn't handle audio at all (but I was told that there is a fork that does), assumes that there is a zero-latency analog wire coming from the TV tuner audio output to the sound card's "TV" input. That's why the OP asks about module-loopback and/o

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-05-21 Thread Alexander E. Patrakov
2012/5/21 Pierre-Louis Bossart : > I am not sure if there's really a problem. Increasing the audio latency > doesn't necessarily result in A/V sync issues. As long as the A/V sync is > done by querying how many samples are queued instead of using the number of > samples pushed into PulseAudio, you

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-05-21 Thread Pierre-Louis Bossart
Since I've posted the above I've refined my patch a bit, which I've attached, but I've also explored an additional cause of latency in the PulseAudio server. I've found that, if for some reason, there is an underrun the watermark or latency is increased via increase_watermark() in alsa-source

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-05-19 Thread Steven Elliott
On Mon, 2012-03-26 at 23:54 -0500, Steven Elliott wrote: > I use tvtime (an open source TV application) to watch TV on my Fedora 16 > system. As some of you may know forwarding audio from the sound card > built into the TV tuner card to the primary sound card is not done by > tvtime. There are va

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-03-27 Thread Steven Elliott
On Tue, 2012-03-27 at 12:16 -0500, Pierre-Louis Bossart wrote: > On 3/26/2012 11:54 PM, Steven Elliott wrote: > > I use tvtime (an open source TV application) to watch TV on my Fedora 16 > > system. As some of you may know forwarding audio from the sound card > > built into the TV tuner card to th

Re: [pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-03-27 Thread Pierre-Louis Bossart
On 3/26/2012 11:54 PM, Steven Elliott wrote: I use tvtime (an open source TV application) to watch TV on my Fedora 16 system. As some of you may know forwarding audio from the sound card built into the TV tuner card to the primary sound card is not done by tvtime. There are various ways of forw

[pulseaudio-discuss] My attempt to reduce latency with pacat and tvtime

2012-03-26 Thread Steven Elliott
I use tvtime (an open source TV application) to watch TV on my Fedora 16 system. As some of you may know forwarding audio from the sound card built into the TV tuner card to the primary sound card is not done by tvtime. There are various ways of forwarding the audio including SoX, module-loopback