Sorenson Squeeze compression causes sound to be not in sync with video
by Patrick Saad
on
May 23, 2008 at 3:06:57 am
Hi Everyone,
Here's my problem.
After compressing a .mov file (2GIG) using the following modified preset in Sorenson Squeeze:
.flv VP6_768K_Stream Frame size: 640x480
Display Aspect Ration Policy: Letter Box
Drop Frames to Maintain Data Rate: 90
My resulted .flv file's audio and video, when added in a flash file as a new (Actionscript-controlled) video, is not well synchronized.
Its starts synchronized and a few seconds after, the audio is unsynchronized from the video.
This happens when I play the flash file locally, its not even on a web server yet.
If it helps understand my problem:
The original .mov file was generated from an After effects edit I made. I compressed it into a .mov file using the Add to Render Queue, using the Animation preset for the Video Format. I made sure to keep the same fps setting at Medium quality.
But again, this issue does not happen to my original .mov file.
Did anyone encounter that issue when compressing a .mov file into a VP6 flv at 768k stream ? If so, do you know of a way to compress it so that sound and video always stay in sync?
I am using a MacBook Pro 15.4inch
Sorenson Squeeze 4.5.3
Flash CS3
Re: Sorenson Squeeze compression causes sound to be not in sync with video by Robin Hamilton on May 23, 2008 at 5:43:57 pm
I am not exactly sure, but my guess would be to disable the whole "drop frames to maintain data rate". It is probably dropping video frames while the audio continues to play.
Re: Sorenson Squeeze compression causes sound to be not in sync with video by Patrick Saad on May 23, 2008 at 6:59:02 pm
Hi Robin,
Thanks for your prompt reply.
I tried disabling the drop frame feature and I still have the same issue.
The following user had a similar issue as mine and it seems as if he couldn't fix it with Sorenson Squeeze, and instead used Flash video encoder... i really need to use sorenson squeeze since i don't have Adobe Flash encoder.
http://forums.creativecow.net/readpost/20/858764
Someone suggested I increase the datarate(bitrate) but that didn't solve the problem.
I am using Sorenson squeeze for mac v.4.5.3
I tried it with the latest sorenson squeeze version (trial version) with the same settings and it doesn't cause out of sync problem. That leaves me to wonder if this is a bug from the 4.5.3 version that was fixed in later versions.
Anyone has a any idea of such bug/issue with sorenson squeeze ?
