QTSS audio out of sych

I am streaming files that have audio out of synch with the video track, some a few frames some a couple of seconds (4 files total). When I play them locally on the server they are fine... tested files over last two days with "identical" audio delay, so network issues are ruled out. Audio settings in the encodes are set to 44.1
Any thoughts?
Thanks

Hey there,
We had a huge issue with this a few weeks ago, and it
took a while to narrow it down. These were our
conditions to files it was happening with:
1) they were prepared using something like Apple
Compressor and were not live streams recorded to
disk
2) Length was longer than 10 minutes long.
If that's the case, try this out:
- Open the file in quicktime (make sure you have a
pro license)
- apple-J to bring up the tracks and delete all the
hints.
- file: export to hinted movie and hit options
- Click Track Hinter Settings
- Change RTP Payload Encoding to Quicktime
and export... that did the trick for us on over 200
GBs of video
Worked great. My clips are 4-6hr each, with navigation to boot. So my guess for the workflow would be:
-export sequence from FCP to .mov
-use QTPro instead of Compressor to hint with Quicktime as hinter settings
For my own edification: Is there a way to do this in Compressor? what is the issue with the files being "hinted" improperly for playout?

Similar Messages

Audio out of sych

hi folks. i have an movie file where the audio is somewhat out of synch. unfortunately, i've already spent a bit of time cutting the master file into subclips, so all of the subclips are also out of synch.
is there a quick way to adjust the audio of the master clip so that all of the subclips will also be syched properly, or do i need to adjust in the timeline and export as a new file?
to make matters trickier, the audio is out of synch in different degrees as the movie progresses. it seems that the computer must have jammed up while capturing. so, theoretically, i would have to be able to adjust the audio a couple of times within the master clip in order to save those subclips.
any help for a wookie?
mercy.

Hey there,
We had a huge issue with this a few weeks ago, and it
took a while to narrow it down. These were our
conditions to files it was happening with:
1) they were prepared using something like Apple
Compressor and were not live streams recorded to
disk
2) Length was longer than 10 minutes long.
If that's the case, try this out:
- Open the file in quicktime (make sure you have a
pro license)
- apple-J to bring up the tracks and delete all the
hints.
- file: export to hinted movie and hit options
- Click Track Hinter Settings
- Change RTP Payload Encoding to Quicktime
and export... that did the trick for us on over 200
GBs of video
Worked great. My clips are 4-6hr each, with navigation to boot. So my guess for the workflow would be:
-export sequence from FCP to .mov
-use QTPro instead of Compressor to hint with Quicktime as hinter settings
For my own edification: Is there a way to do this in Compressor? what is the issue with the files being "hinted" improperly for playout?

I have a mid 2009 Macbook Pro and i know the Mini-display port does not support audio out but does it support HDMI out? or do i have to buy a Mini-display to DVI and then a DVI to HDMI adapters?

I have a mid 2009 Macbook Pro and i know the Mini-display port does not support audio out but does it support HDMI out? or do i have to buy a Mini-display to DVI and then a DVI to HDMI adapters?

Run MDP to HDMI for picture. Use a cable like this to run sound from your audio out on your Mac to your TV's audio in. That's about all you can do.

Pulseaudio & tsched=0,random whitenoise since change to HDMI audio out

Hi all
I had a fully working mythtv box with pulseaudio. Some time ago, I remember I had to add tsched=0 to /etc/pulse/default.pa like in the following line
load-module module-udev-detect tsched=0
because I had random white noise when skipping sections in music/video. I used analog out of my Creative Labs SB Live! at the time. Now I have a Nvidia GT 520 with HDMI out, connected it and changed some settings in alsamixer, pavucontrol as well as mythtv in order to have audio out through hdmi to my TV and it worked.
But since then I have again those random white noise issues. I start watching a recording and when I skip for 30sek it might still play normal, but randomly and with very high probability like every third or second time I skip again there is no sound anymore, but a very strong noise blasting out of my TV speakers. It is nearly unbearable, so loud.
So basically it is the same thing I could earlier work around with the tsched=0 parameter, but after searching hours in google I could not find anything better/else than setting this parameter which I already have since very long time.
Does someone have an idea where to start searching for the culprit?
TIA

Ok, so I have had some time to devote to this. Since this was a a new install of Arch I decided to just reinstall again to wipe out anything that I might have added to cause further compication to the solution. I am sure I am missing something obvious as aplay shows the card:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 7: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 8: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 9: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
To restate, my system is:
MB - Gigabyte GA-X58A-UD3R (onboard audio is disabled)
Graphics card - GTX 470
LED HDTV - Vizio XVT473SV
My Alsa-info output is here:
www.alsa-project.org/db/?f=04cdccbef389c4663f9db42d4d4a754321bf3fc3
I have tried numerous howtos, tutorials and posts to attempt to solve this issue, but no luck. Here are a couple of them:
http://newyork.ubuntuforums.org/showthr … ?t=1565479
http://wiki.xbmc.org/index.php?title=HO … ,_or_GT240
A couple of things worth noting:
All four channels are Mmuted (MM) each time I boot within alsamixer. There are no sliders on the four channels. They are either muted or not.
I have the HDMI input in HDMI1 on the TV, but I can move it to another if needed.
Since I am really unsure what would be needed beyond the alsa-info output I will hold off throwing irrelivant system logs and output, Please let me know what information would be helpful and I will post it.
I would really like to get this solved, so anyone willing to give a shot at helping me solve it would be most appreciated.
TIA

Why doesn't the Belkin Thunderbolt Express Dock relay sound from it's audio out port?

Posted to Belkin Support community to no avail
=====================
Why can't my Belkin Thunderbolt Express Dock operate my desktop speakers?
Options
07-14-2014 01:48 PM
Bought a Belkin Thunderbolt Express Dock at the Apple Store to use with my new MacBook Pro.
When I connected it to my
-20" Mac Cinema display,
-Various USB connected hubs and devices,
-Various Firewire hubs and devices
-My ethernet network from my Cable Modem
Then made the last connection from the Dock to the Thunderbolt port on the MacBook Pro...
All was fine.
But when I made that one last connection - to my desktop speakers via the audio-out port on the dock (earphones icon) nothing happened. The dock did not pick up the audio from the laptop playng an iTunes song or send it to the desktop speakers. When I unplugged the audio cable from the Dock and plugged it in to the MacBook Pro directly, the desktop speakers kicked right in again.
Does Thunderbolt pick up audio-out from a MacBook Pro and carry it to the Dock for connection to my desktop speakers?
Of for some reason, can that signal not be carried by Thunderbolt?
Will I have to get used to the onerous task of unplugging 2 cables from my MacBook Pro when I want to more it to another location in stead of just 1 cable?
But stay with me. Here's the thing.
When this happened I called Belkin Customer Support to ask if they could help me. After taking me through their steps, they agreed that the unit must be defective and agreed to ship me a replacement Thunderbolt Express Dock.
The replacement arrived over the weekend and when I shut down my system and then plugged everything from Dock I purchased into the replacement Thunderbird Express Dock - - - - - the same thing happened!
No signal to the speakers from the dock. Perfect signal when the plug moved from the Dock to the computer itself.
Hence my question:
Does Thunderbolt pick up audio-out from a MacBook Pro and carry it to the Dock for connection to my desktop speakers?
Can it accomplish that function?
Am I really that unlucky to have received 2 defective new Belkin Thunderbolt Express Docks in a row?
Or is it simply a matter of the Dock not handling audio throughput in the manner I am expecting.
Then again, if this is the case, why did the Belkin techies not know this when I called them in the first place.
Yes, I'm going on and on here. But I really don't have time for this.
What's going on here?

OK. No reason to be playing games here. Just surprised that this issue hasn't been brought up here on the community boards as well. Here's the simple solution
Steve
========================================
Re: Why can't my Belkin Thunderbolt Express Dock operate my desktop speakers?
Options
07-17-2014 07:09 PM
After reaching a Level III technician in Belkin customer support today and having spent approximately 4-5 person hours on this issue, we figured out that the Sound/Output preferences in the Apple System Preferences should not be set to "Internal Speakers" but rather set to "USB PnP Sound Device".
Worked like a charm. Simple, elegant solution to a real problem, one likely to be encountered by 90% of the people who buy a Belkin Thunderbid Express Dock off the shelves of any Apple Store to use with a current generation Apple laptop or desktop computer.
But the Level III Belkin technician admmtted that this critical little piece of simple, straightforward information should have been readily available to their Level 1 techies who began helping me 5 person hours ago. Would even have saved Balkin loads of customer service support time.
And so the saga ends
Belkin owes me for helping them learn this precious lesson.
Steve

Static in Audio Out when Loading a new webpage.

Whenever I use the audio out port, for example plugging in a headphone, I would get a spike of static whenever I load a new web-page in Firefox or any internet browser. I can restart the computer and it would go away for like a few hours. Could the network card be causing a charge in the audio out port? Really weird and annoying bug.
Kvn
Message was edited by: kvnchg

in as3 you must explicitly stop all streams (including video) before unloading.

10.6.8 - No audio out (but internal speaker fine) - MBP5,5

After upgrading to 10.6.8, plugging in my earphones or headphones does squat. My internal speaker still works fine though
I've tried the AppleHDA rollback (to 10.6.7 version) to no avail - each time either audio disables totally or I get the "Incorrectly installed extension" error
The most interesting thing is my problem seems subtlely different from the 'popular' audio problems. Most bizarrely, audio out works until I log in (works on the login screen). It dies and I receive asserts on the console after logging in though (I'm not on the machine and I can't remember the exact assert message but something about failure during GOTO in some audio handler)
I haven't tried making another user account (to see if it's account specific) but I have tried deleting all manner of user-specific audio plists as well as doing SMC reset, permissions repair etc.
Any ideas? + Anyone have the same problem? (I'm presuming this is specific to this MBP + config)

one thing i have just tested i can copy files from my mac desktop to my macbook fine mmm!

How do i disable audio out timeout on a macbook pro causing noise on external amplifier, without having a silent .wav playing in infinite loop?

After updating to Mavericks I have this problem. From what I guess, my audio out (either the signal, or the entire soundcard) cuts power after being idle for about 30 seconds. This results in a static noise when connected to my external amplifier. From various forums, dating back to 2007/8 I can see this is not a new problem. The only workaround is playing an empty .wav sound on infinite loop (either by using a terminal command, or by a third-pary app which does this for you), preventing the audio out from timing out and cutting power. This seems to me to be an undisirable proceeding. Even if minimal, it uses extra power and memory. Is there any way to prevent the sound card from timing out like this?

Ok. I tried disconnecting the charger from my macbook and that actually helped. The noise is now so low it is hardly audible, so I guess it has to do with a ground loop. But still, even when hardly audible it still only happens after 30 seconds of idle time. Is that because my theory about a timeout is correct, or is there some other reason for this? This used to just happen when my macbook went on standby (sleep), but now it happens allready after 30 seconds, so even though it may be a loop, it wasn't like this before. I'd love to understand what is different now.

Audio out options question - HDMI + component?

I have looked thru the manual and forums, but have not seen the answer to my question.
If I hook an ATV to my TV with HDMI, and also use the Right and Left (red and white component) audio out cables to my stereo (which does not have TOS link digital audio capability), will I get sound delivered to BOTH units at the same time? Basically, I'd like sound to go to my TV and my stereo.
I see in the ATV manual that it is possible to use HDMI and digital audio out. DVI video and component audio out, but I need HDMI video/audio AND component audio out.

The easiest way to accomplish this is to use the HDMI cable from the ATV to the TV and then export the sound from the TV with with either RCA, toslink, or digital audio out cables to your stereo. That is what I do at home. I have a DVR cable box, DVD player, and PS3 Blue Ray player and a HD video camera all hooked up via HDMI to a HDMI hub to the TV and then I can switch the stereo from either the TV audio out (all of the above) or the airport express where I stream music to the Stereo. There is no doubt that the sound quality from the BR HDMI cable of the PS3 has a superior sound.
A tech at curcuit city told me there is a difference in sound between, a expensive Monster HDMI cable and the less expensive cables now available on line, but I have not tried a A/B comparison yet, but am planing to do so. $50-60$ vrs. a few dollars on line aftermarket.
Hope this helps.

What kind of audio interface do I need for audio out from MainStage 3?

I have a Yamaha MO8 that I use for playing in the worship band at my church. In the past, I've just directly routed audio from the MO8 through a direct box and into the sound system.
I'm looking to switch my setup and use the Yamaha MO8 as a midi controller in MainStage 3. I have this part working — the problem is getting the audio from my MacBook Pro.
The audio output sounds fine through the MacBook Pro speakers or through headphones plugged into the audio out / headphone jack; however, if I plug the direct box into the MacBook Pro's audio out / headphone jack, the signal the sound system gets is very pretty weak and very distorted.
I'm assuming I need an audio interface between my MacBook Pro and the direct box / sound system. Since it's a 2010 MacBook Pro, I'm assuming my only output option is USB (unless the digital audio out can be used). If that's correct, would something like the Scarlet 2i2 work for me?
Thanks…

Yes, you'll need some sort of audio interface to get a good signal back to your mixer.
The Scarlet 2i2 would work for you but you may find a few limitations. I use a MOTU Audio Express and it has the advantage of being a mixer as well, so I can mix in a backup signal from the onboard audio outs of my controller (Kurzweil PC3x) in case MainStage goes down (it happens on rare occasion). Firewire is my preference so the MOTU checks that box. I also like that I can connect my MIDI cables to the MOTU and have one cable going into the computer.
If you need this sort of compact redundancy, I would shoot a little higher than the Scarlet. If you don't feel the need for a backup line and USB works for you, then the Scarlet unit would be an excellent value.

Audio out from HDMI port?

I have connected my TV and Booklet via a standard HDMI cable. This same HDMI cable works fine with my DVD player. When I use it with my booklet, only video seems to be sent to the TV via the HDMI cable. Is the HDMI out port supporting only video, or audio as well? I understand the booklet supports HDMI 1.2, which should support an audio profile, as far as I know.
Let me know if you have been able to get audio to work over HDMI.
thanks,
John

I found your discussion attempting to find the answer to the same question.
I won 5 of these things at auction and wanted HDMI to be a selling point
I researched far and wide and now I think I have the answer now.
I had to reload the OS and all the drivers for all 5 units
I read some of the replies to this topic and with some people saying that they had audio and I didn't, I felt that either I was crazy or someone is not truthful. so i had a thought ,
after about the 3rd unit I tried to just try to hook it up to a TV bare without Nokia updated software
What do you know, it worked.
So I have come to the conclusion based upon using both units after testing them with and without the update, is with the stock driver provided, you will get the audio from the HDMI port; if you update the software from the updater(which I noticed it says the driver is MANDATORY)
You will not.
There is a plus and minus on both occassions
With the graphics driver update you can scale your video once hook to an HDTV to full 1080p HD; but you wont get any audio (at least for now)
Without the update you will get the audio out , however you will only get the same native resolution as the netbook 720p
So contemplate which feature is more important you and make your choice.
Higher picture quality(full HD) with the driver yet I need 2 cable (HDMI AND 2.5 to RCA)
OR lower resolution720p but audio as well
I hope this helps but i see my next challenge for both you and is to see if we can roll back the driver if we want audio over HDMI.

HT4806 Mac mini digital audio out through the headphone jack

I'm misled by this sentence for audio out port from the support page: "For digital audio, you can use Apple iPhone headset with microphone".
http://support.apple.com/kb/ht5539
It is there for all mac minis starting from 2010 model.
Does it mean electrical digital signal? Any chance to get S/PDIF coaxial signal?

If an optical signal is OK, you just need one of these:
http://www.amazon.com/dp/B00016W6Y6
To convert the optical signal to a co-ax one will need a more complex/expensive convertor.

Trouble running DVI video and HDMI audio out of 6950

Twin frozr iii 6950 2gb (X2 crossfire)
Asus VG236 Monitor
Windows 7
MSI P67A-G43 Motherboard
Yamaha RX-V371 Receiver
I have two Twin Frozr iii 2gb 6950 cards and am attempting to use the HDMI on the video card solely for 5.1 audio out to my receiver while using video through the DVI jack of the same card directly to my monitor without success.
-Audio functions if I run the HDMI from the card into my receiver, then out to my Asus VG236 monitor.
-Audio functions when I run from the card to my receiver then out to my plasma tv.
-Audio functions if I have the DVI run directly to the Asus VG236 monitor and HDMI to the receiver then plasma tv (only in dual display and the tv must be on for audio to function this way. If I turn the tv off even though the receiver is still on the audio stops working and windows sound lists the 'AMD HDMI Output' as not plugged in).
-Audio even fuctions when I run DVI to the monitor and HDMI to the receiver, then out to the HDMI port on the same monitor but the monitor will only run at 60hz this way even when DVI is selected on the monitor, as though it defaults to the HDMI when dvi and hdmi are both plugged into the monitor.
And if i run the hdmi to the receiver "HDMI IN" port without using the "HDMI OUT" port from the receiver to anything, like my tv or monitor, the sound doesn't work and in windows sound the "AMD HDMI Output" is listed as "not plugged in" .
I purchased this monitor for the true 120hz capabilities, the HDMI on this monitor doesn't support 120hz, the maximum is 60hz. DVI is required to run at 120hz. I don't see any option in windows sound settings or CCC to resolve this.
I have also tried disabling onboard audio in BIOS with no effect.
For now i'm running the audio out my MOBO jack through an optical cable to the receiver but optical only supports 2.1 sound.
Any suggestions you can offer would be appreciated, thank you

bump,
Anybody?

Version 1.1 and audio out via USB problem

When I attempt to use headphones to assist editing, I prefer to use the m-audio USB transit and set my sound preferences for the iMac accordingly, but STP in my case does not work at all. Instead, I hear clicking ( about 1 sec intervals), followed by STP freeze and unless I force quit, my system freezes.
If, on the other hand, I use digital out, or a FW interface or the iMac's speakers, all is well.
I am more than mystified since FC readily works with the USB pathway with video/audio , thus allowing me to use the FW ports on this limited platform.
I have trashed STPs preferences without any result. I also cannot find (or do not know where to look for) STPs specific preferences for audio out. I apologize in advance for failing to find the reference in the manual, if that is where it is and those settings are the issue.
Any help and suggestions are greatly appreciated.

At the risk of seeming to be talking to myself, I can report that I have found a solution to the problem I posted. To be more precise, Apple did,some time ago.
For those who are curious:http://support.apple.com/kb/TS1464
Thanks to all who looked in. I hope it is useful for someone else, too.

USB audio out not getting to DAC

Just set up my Macbook late 2007 OS 10.7.5 to a Denon DA-300USB DAC.
I'm successfully playing files out of JRiver Media Center software via Mac's digital audio out through an optical audio cable. But optical audio has limitations on bitrate, only to 24-bit/96khz.
I want to use higher rates and have some higher res files. The DA-300USB can process up to 24/192 and DSD files using USB.
When I connect the DAC using USB and power on the DAC, the sound preference pane adds the option "Audio Out High Speed USB," which is what I select. This indicates the computer is seeing the DAC.
But when I play a file, the DAC display reads "unlock," meaning it's not receiving audio. And the sound plays through the internal speakers, Ugh!
Denon says no driver is needed for this device -- indeed the computer does detect a USB audio connection when the DAC is on.
Is there something I'm missing?

According to Crutchfield, this DAC can only process ALAC up to 96 kHz. Can you get lower res files to play using the USB connection?

QTSS audio out of sych

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