Igor Jovcevski
Forum Replies Created
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It all depends on the source audio. In my own case, when I developed WooWave, I had to do hundreds of tests with different audio. Tradeoffs are usually unusual frequencies. without having access to some of you audio, one can’t really say much 🙂 . In my own case, the biggest problem was to get rid of false positives or get less.
What I do in WooWave, and what is probably done in Plural Eyes is applying Fourier transform with window function to get Spectrogram of the audio. Then this ‘image’ is analyzed for patterns in all audio clips. If they match, sync is established as an offset. In this case, if it works with standalone, xml parser is to blame, but I would guess that the problem lies with the nature of the source audio . The above is oversimplified description 🙂 There is so much to this to get it going… lots of small tricks and innovative algorithms to get precision and speed.Igor
Woowave.com
tools for digital artists -
Hi there. I am the WooWave developer and would invite all to try out woowave. If you can’t afford it, you can get a license just by simply posting your process on youtube(screen record) . All you need to do is compare woowave to other app doing similar thing and post the video online(comment would be great but not essential) What is important though is to provide link to the footage used, or proxy of the footage so anyone can recreate the tests. Enough of biased reviews and PR. Woowave will always post footage used in tests. Fair& Transparent 🙂
Igor
Woowave.com
tools for digital artists -
Post Magazine did a review on WooWave in this months issue
have a look
https://digital.copcomm.com/i/94072/50
Igor
Woowave.com
tools for digital artists -
check the free license offer for all those posting screen recording of real life test of woowave and plural eyes on same footage. Of course, you will have to provide link to your footage used so everyone can recreate the tests. Fair & Transparent and free way to get yourself a copy of woowave!
Igor
Woowave.com
tools for digital artists -
if you’re interested to be tester for WooWave for Avid, please tell us. WooWave is Plural Eyes competitor, and we’re currently working on Avid version.
Igor
Woowave.com
tools for digital artists -
Windows version is now 64 bit. Memory limitation is no longer a problem.
Igor
Woowave.com
tools for digital artists -
Woowave for Windows has just been updated to 64bit support. Please reinstall. Now it should work with long files as in your case of 3 hour lecture 🙂
Igor
Woowave.com
tools for digital artists -
why would you like to relink? the audio is anyway uncompressed 🙂 . its RAW PCM Audio Wrapped in wav header. No changes there. If you’d like to resample it, I would be careful. SOX command line tools are great for this. Resampling is not simple job and algorithms differ a lot.I would do it in 44.1 if possible or resample on quality app.Don’t use quicktime converters premiere even avid for resampling. do it outside.
Igor
Woowave.com
tools for digital artists -
audio has no specific fps actually, it is 48000 fps in your case to be precise. The drift is mainly caused by the accuracy of the quarz clock in recorders. secondly, it may be related to codecs and audio duration change.the fps you find in your wav file is actually metadata only. you can easily just import it in Audacity and export whatever you like without any metadata.It’s normal go off few frames for 20 min footage. you can avoid this by having shorter recordings.
Igor
Woowave.com
tools for digital artists -
WooWave is 32bit app and when used on windows it has an upper memory limit which is roughly around maximum length per one file not exceeding 80 minutes. If you tested the OSX version, please provide links to your proxy so we can recreate the test and see if there are any problems. for interactive skype support just search for woowave on skype 🙂
Igor
Woowave.com
tools for digital artists