Windows Livestreaming & Recording Guide (Part 1: DXtory)

I just played back some audio from a few rounds I played with the guys Sunday. Audio quality is fine, loud and clear. My audio is better quality than that of mumble and game audio sounds fine too. Loud and clear. if I removed my audio and Mumble it was really clear.

 

For me when I play, I used to turn the game down to like 20%. I just can't hear voices clearly with any sort of ambient noise, and to me with this big difference in levels sounds equal to my ear. So it is very important to me, you're just normal

 

Yeah I guess I am, these headphones are mega loud anyway lawl.

 

Bump for Help.

I've been recording a lot of game footage lately, this is my setup.

Dxtory with h264vfw, recording to a drive clocked @ 150MB/s
Audio Sources:

Game Audio - Built in Audio
Blue Yeti (Mic and "Speakers") - Teamspeak and my smooth jazz voice.

All set to 48khz 16bit

The issue I am experiencing is as thus:

When recording a long session 45m+ I notice a severe drift in my Mic audio stream, most cases +1.4s over 30 minutes.

The game audio and Teamspeak audio are perfectly synched, just the mic audio drifts.

I had a feeling that it's due to frame drops during the recordings (loading screens drop to 12fps in some games) which would attribute to my mic over running as there are less frames being recorded, but the file is still recording @ 30fps?

Anyway, I sound cryptic as I find it difficult to fully explain the issue let alone understand what the heck is going on.

Has anyone experienced this?

 

Sorry, didn't spot this at all, will sub to thread now.

Were you using Virtual Audio Cable? Don't have a clue at this point tbh, but will give some testing a go.

 

No VAC.

The yeti is it's own "Soundcard", like a USB headset.

In DXTory I have 3 Audio streams:

1: Game Audio (Over my xonar d2x)
2: Teamspeak/Skype audio (Over the Yeti's headphones)
3: Mic input (Yeti Mic)

All sample rates and bit's are the same on all devices: 16bit 41khz
All sample rates and bits are the same, set within each devices property page.

It's just so strange that ONLY the Mic becomes desynced over time, the teamspeak and game audio are perfectly in sync.

I could test with a secondary microphone running at the same time through the soundcard to see if it's a timing issue with the Yeti or something.

I even downgraded from Win8 to 7, moved the recordings to an SSD, changed codecs etc.

Still happens

 

So did you try running the mic through the soundcard? Because from what I've been through with VAC there can be different clocks for different deceives, so dxtory is hooking into the softwarey windows end of the outputs, but has to take the usb stream for the mic. If the Yeti sound device isn't directly plugged into a top level port without sharing the controller, the usb signals could have some latency maybe.

Doing some searches, I've seen this type of issue come up, with completely different situation and software. So my suspicions get leveled to hardware, and specifically the clock rates issues as described in VAC help pages. To be clear, I can force VAC to clock wrongly and reproduce an issue like this, in what ever discrepancy I liked, but to sync-appropriately I need to advance the clock rate to 99.9998000. Hopefully you understand these ideas, I'm tired now and having a drink before I go to bed (work nights) so if there is anything else gust holla.

From the VAC help:

Oh the thing with sampling rates isn't about sync but having to reprocess the signal - which uses a small amount of cpu cycles, and degrades quality insignificantly/enough.

 

Nothing worked

I've downgraded DXTory to an old build, the number escapes me.

It's the version prior to the "Changed sound code" in the changelogs. 2.2.121 or something

Will give it a run tonight, hopefully that resolves the issue (i just can't record minecraft with it, as it crashes).

 

Yeah, this thread suggests it may help. I've a variety of things around there though, updating drivers etc.

 

Perfect test tonight.
8 hours of battlefield 4

 

Good luck the beta fps is terrible.

 

15 minutes in, pause recording to sort the FPS, check the footage...

INSTANT desync of audio.

This is a piece of crap.

 

Finally bought and installed Dxtory to record BF3 this evening. I was instantly pissed off with it, giving me the "INIT" error and not recording vidoes. No solution on the exkode site either... I finally fixed that myself, to get a nice large raw video file of great game footage which won't actually play in VLC. I am hoping that it will play when encoded down to MP4.

 

Ok

Check the first page for best setup info. I use Dxtory at times but have taken to streaming also so using OBS to output minus using Dxtory for input video.

Yes it does need to be rendered down before usage, don't use RAW just use avi. But will still need to be rendered anyway.

 

I rendered it to MP4 and it plays fine now, it was just trickier to setup than I thought it should be and after following the OP guide. In the end my INIT problem was being caused by my Xonar but it was relatively simple to rectify once I'd figured it out. I think I have it working properly now, will hopefully have time to test it more tonight

I've started using the Recon kit more and more in the past few days and have unlocked lots more rifles and upgrades for them.

Dat PFC Jackson (from Saving Private Ryan) sniper run! In the game I recorded last night I emptied an extended M40A5 clip as fast as you can with a straight pull bolt and hit heads with every round

 

Thats great news. I have tended to not record as much the last few days. I have been streaming at a lesser quality than I can record at purely because I wanted to see what the quality was like and whether Virgin media hammer my upload speed down.

I know there are some tweaks I need to make with it to make it better. But I can say I haven't lost a single packet of data whilst streaming which is awesome.



I may see what Dxtory outputting the video into OBS yields.

Edit: I also just sorted out an autorun of Virtual Audio Cable.

I found I was pointing the bat file to the wrong places, as per what Jess wrote previously. I just set my repeaters location etc to the same as what Jess had used. Only thing is If I use his settings have bad audio. Set the bat to my settings and things are fixed.