Audio and Animation Synchronization

I am working in Flash Pro 8. My project is 3 minutes long. It
includes background music and narration. The audio files are each
in the library as MP3s and are called in by sound objects via
actionscript. I have animated words that need to match up to the
narration. It works great on my top of the line G5 but as soon as I
transfer it to a PC or any slower computer the synchronization of
the animation and narration gets all out of wack. It starts off
okay but gets worse and worse as time goes on.
The only information I have found on this issue pertains to
audio that is sitting in the timeline and can be set to "stream."
Since my audio is called in by sound objects I am at a loss. I need
the audio to be called in with sound objects so I can control
volume and on/off buttons for the background music and the
narration independently.
Any and all suggestions would be greatly appreciated.

I think what you're trying to do is impossible. There is a
potential workaround for the issue of having streaming sound AND
stopping and starting the audio, but not for changing the volume.
You can put each sound file into the timeline of an empty separate
movie clip that you place on the stage. Within each movie clip,
obviously the timeline will have to match the length of the audio
track. Set the properties to Stream. Then you can use Action Script
to play() and stop() that movie clip, hence pausing the soundtrack.
That also gives you the ability to use script to skip to specific
frames or markers within that movie clip. But as for controlling
the volume, I think you're out of luck. Flash is still quite
limited in how it treats sounds. Unless I'm wrong, there isn't a
way to use script to set the properties of a sound to
Streaming.

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Audio and animation synching

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This may help:
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http://support.apple.com/kb/TA25603?viewlocale=en_US

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Ok thanks.
I tried to implement PullBufferDataSource and everything went ok, the audio .wav file was generated, but when I run that file, the length is 0 and not the lenght I wanted (40.00). Where can be a problem?
Here is the code I wrote/changed:
TimeDataSource tds = new TimeDataSource(40.00);
Processor p;
try {
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    p = Manager.createProcessor(tds);
} catch (Exception e) {
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// Set the output content descriptor to QuickTime.
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               return null;
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          public Object[] getControls() {
               return new Object[0];
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               return new Time(duration);
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          public void start() throws IOException {
          @Override
          public void stop() throws IOException {
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               private boolean ended = false;
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                    format = new AudioFormat(AudioFormat.LINEAR, 8000, 8, 1);
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               return format;
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               buf.setDuration(duration);
               buf.setFormat(format);
               buf.setEOM(true);
               buf.setOffset(0);
               buf.setLength(0);
               ended = true;
          @Override
          public boolean willReadBlock() {
               return false;
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          public boolean endOfStream() {
               return ended;
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          public ContentDescriptor getContentDescriptor() {
               return new ContentDescriptor(ContentDescriptor.RAW);
          @Override
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               return 0;
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    }Edited by: mako123 on Feb 22, 2010 2:18 PM
Edited by: mako123 on Feb 22, 2010 2:23 PM

"error while trying to synchronize Audio and MIDI"

Hello All,
Just got Logic 8... installed (as upgrade from 7)
I keep (consistantly) getting this:
"error while trying to synchronize Audio and MIDI" when in play or record mode... has anyone any ideas regarding a 'fix' or maybe even to point out stupidity on my part re settings; I'm open to comments here and would obviously love to get this fixed/sorted out.
System is basically: G5 Dual 1.8/OS 10.4.10/MOTU 828 Mk2
Thanks in advance.

Hi,
I first did what the manual was telling me but that made no difference as the sync would drop within 5 to 15 bars... very frustrating.
Since my original posting I have spoken with MOTU regarding this Audio/MIDI sync problem. There is evidently a simple reset that needs to be done (that is if like me you are using a MOTU 828 Mk2 interface), you have to toggle through both digital input and output settings in the Audio Control Panel. The problem then goes away.
I hope that is helpful. I think that this probably is relevant to all MOTU interfaces, or is at least worth trying if you are having this problem... maybe other manufacturers too... ?
Cheers, Kick

Error while trying to synchronize audio and MIDI. Sample rate 42804 recognized. Check conflict between Garageband and external device.

Sometimes, while playing back my software instrument songs, I get an intermittent pop-up error message, saying "Error while trying to synchronize audio and MIDI. Sample rate 42804 recognized. Check conflict between Garageband and external device."
(Sometimes the five digit number is different, but remains a five-digit number beginning with "4".)
Simultaneously, the song stops until I press the "Okay" button in the pop-up window.
When I continue to play the song, the sound is jerky and clipped, and the playhead doesn't keep up with the song, and then suddenly jumps to the part of the song currently being played.
There's also a sound of static.
The issue seems to occur whether or not I have my MIDI controller turned on and plugged into my desktop Imac.
Tony

Hello,
open your Audio MIDI Setup utility and set the input to 44100
https://discussions.apple.com/message/12710638#12710638

Error while trying to synchronize Audio and MIDI. plz help i cant hear anything

plz help me i cant hear nothing and its says: Error while trying to synchronize Audio and MIDI.
Sample Rate 38536 recognized.
Check conflict between Logic Pro X and external device. ???????? PLZ HELP

It means you are overtaxing the CPU, likely with just one (3rd party-)software instrument plugin. Ignore the word "external", in this context it often means "3rd party plugin".
So what synth is it? Since you're Dutch, it's probably one of the trancy dancy synths, such as Albino, Diva, Sylenth or Massive... I could be wrong though...
The best way to avoid this message is to Freeze the track with the guilty synner - however, a frozen track cannot be edited, so if that is a problem, you will have to make the synth itself run lighter, which can be achieved by turning of internal effects that are ON the synth itself, especially reverb.
http://help.apple.com/logicpro/mac/10/#lgcpf1cbfd51

How to solve: Error while trying to synchronize Audio and MIDI.

The project consists of an hour long DVD of a play which I have loaded into Logic ( on a MacbookPro) and stripped the audio
and cut it up into regions to name the different parts of the play ( verse/music etc)
Usually I am able to play the project with a small window showing the Movie and watching the audio in the back ground adding markers and notes.
Most of the time this works fine.. but then I get the following message re-occurring every few seconds:
"Error while trying to synchronize Audio and MIDI.
Sample Rate 26848 recognized.
Check conflict between Logic Pro and external device"
There is no MIDI, there is no external device, the Sample Rate is the usual 44.1
Can anyone explain how to stop getting this error message which keeps interrupting workflow?

Hello,
open your Audio MIDI Setup utility and set the input to 44100
https://discussions.apple.com/message/12710638#12710638

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Hello,
My rig: Dual 2.5 GHz PowerPC G5 3.5 GB DDR SDRAM. OS X 10.4.11. Logic Pro 8.0.2, Motu 828mkII interface, emagic Unitor 8 midi interface, Makie Control Universal, 7200rpm Firewire 800 Hard drives.
I Just launched a Logic Pro 8 session that was started a few days ago and when I click "Play" there is no audio from the recorded tracks coming through the speakers. All that comes through the speakers is a series of hi pitched (roughly 4k to 6k) beeps and then an error message: "Error while trying to synchronize Audio and MIDI". I've tried restarting everything and still get the same results. I tried switching audio device to "built-in audio" instead of the motu and that works fine, (the tracks play back correctly).
I've also tried other sessions that have different sample resolutions and bit depth and I also tried reseting all midi drivers.
All sessions produced the same results, "Error while trying to synchronize Audio and MIDI", and played correctly when using built-in audio device. It's looking like the problem is with the motu.
How can I trouble shoot this?

Sounds like the MKII needs a reset.
You can reset the 828 MkII to default settings in the following way (as provided from the MOTU support page):
Follow these steps to restore the 828mkII to Factory Default Settings.
Disconnect the firewire cable from the 828mkII
Press the Setup knob
Turn the Setup knob all the way to the right
Press the Select knob
Press the Value knob
Power off the interface and plug the firewire cable back in
Power the interface back on
pancenter-

Solution for "Error while trying to synchronize Audio and MIDI" and "System Overload" messages

Article for those who hate Logic error windows
Seen in Logic Pro 9.1.7 on Mac OS X Lion 10.7.4
and Logic Pro 9.0.0 on Mac OS X Snow Leopard 10.6.5
Logic Pro:
System Overload.
The audio engine was not able to process all required data in time.
(-10011)
Error while trying to synchronize Audio and MIDI.
Sample Rate xxxxx recognized.
Check conflict between Logic Pro and external device.
The search in the help given as follows: overload occurs when you use a lot of tracks and a lot of effects on them, and the synchronization is lost when the selected MIDI track for recording or playback. Yes, this is all that is written in the resources. And here are useful tips that have been found:
The Bounce function allows the entire instrument track to be recorded as an audio file. This bounced audio file can then be used (as an audio region) on a standard audio track, allowing you to reassign the available processing power for further software instrument tracks. For more details, see "Bouncing Your Project."
You can also make use of the Freeze function to capture the output of a software instrument track, again saving processing power. For details, see "Freezing Tracks in the Arrange Area."
These tips - about the timing. About overload - there are no tips, except as "reducing the number of plug-ins" and "increasing latency". Zero useful tips - I got two errors in the test project with a blank audio track with no effects, MIDI drums and standard synthesizer, it was no aux buses, and the entire project was only a single plugin in the master track.
Here is the configuration of my computer:
iMac12, 2
CPU: Intel Core i5 3,1 GHz
Memory: 4 GB
And here's a project that almost immediately stops Logic, all instruments and plug-ins with the init-patch, ie not the most demanding settings:
It's sad.
When this happened the first time, I could start the project only if the empty audio track has been selected, a track specially designed so that you can at least start the project. Then, this problem has evaporated along with the changing conditions of work and I forgot about it until the last case.
I was looking for the cause of the problem in the console and the system monitor for two days, and finally I found that Logic ping to the network frequently. I remembered the exact time of occurrence of the problem, and system logs revealed that the problems began immediately, as soon as I deactivate the service of the Internet.
Solution: enable the Internet, or add a new network service on a computer with no Internet. I just created the Ethernet connection to the ip address 1.0.0.0
Logic immediately began to sing.

Hi gabaghoul
Yes, it worked for me on four different OS and Logic versions (10.6 - 10.8 and 9.0 - 9.1.6)
It does not work in some cases, hard enough to tell in which one, but you can try, it very easy: go to the net settings and create new Ethernet connection to the ip address 1.0.0.0 and connect LAN cable to the port.
Also you can try to figure out what happens in your system while Logic error occured - fot that you just start Console and search "logicpro"
Pay attention to repetitive events in a console and events with suitable timing, not so far from error
The problem may be related to the GUI or system memory, sometimes turning off Safari (or Chrome, others browsers) might help.
Message was edited by: spred

GarageBand: Error while trying to synchronize Audio and MIDI.

This error recently started popping up for me while using garageband.
GarageBand: Error while trying to synchronize Audio and Midi
Sample rate xxxxxx recognized
Check conflict between garageband and external device
When I use garageband, my input and output are usually set to my scarlett 2i2 interface and I've never received the synchronizing error before today. I am not using any Midi.
I've checked the Audio Midi Setup tool to make sure that my format is at 44100.0Hz and have set the "sound" in system preferences to use my scarlett 2i2 interface for input and built-in system for output.
Can anyone help me out with why i'm receiving this error?

Good grief! I'm on a Mac OS X and was having this same problem. All these discussions about so much technical jargon just had me exhausted ... not only did I not understand what was being referred to, but I couldn't imagine how to do what was being said.
Here's what got me straight:
1. Go to System Preferences and click on Sound
2. Click on Input and select your USB mic (or whatever you're using)
3. Click on Output and select Internal Speakers
Done. No more problem with Garageband!

Audio and Animation Synchronization

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