Magic Lantern Forum

Using Magic Lantern => Raw Video => Topic started by: fatpig on June 21, 2013, 01:04:49 PM

Title: Audio Sync WAV Idea
Post by: fatpig on June 21, 2013, 01:04:49 PM
Hello guys,

I just read a post on here which gave me an Idea:
since the WAV recording is not continuous and it sometimes stops the recording of .RAW Video, too-

why not implement a mode to record a predefined number of seconds of WAV Audio along the Video when pressing record,
to give users a base to start with, using software like pluraleyes to sync audio automatically.

This could save hours in post-production and may only require a little coding.

Anyone up to the task?
Title: Re: Audio Sync WAV Idea
Post by: AnotherDave on June 21, 2013, 01:15:04 PM
I think it would be better to acquire a smart slate, and an audio recorder that generates timecode.

*Or, you could do it the old fashioned way and just use a clap slate. ;-)
Title: Re: Audio Sync WAV Idea
Post by: dandeliondandy on June 21, 2013, 05:05:19 PM
Smart slates are expensive.  8)

A few seconds to get that clap in there in a short .wav would be great.
Title: Re: Audio Sync WAV Idea
Post by: fatpig on June 21, 2013, 05:13:55 PM
I do use a clap slate again with ML RAW-
but I liked it without the slate. I have used pluraleyes for over a year now and it saves a LOT of time. :)

well, a clap sound would not be unique enough for pluraleyes to sync it.
I was thinking more like the Audio would already be running, and immediately after starting the video ( in our ~5 second WAV )
you ( your assistant, your clapper, anyone ) would say the take title and number - as always-
which would be unique enough for pluraleyes to sync the external audio. :)

- if you dont know pluraleyes -
it compares the waveform of different sources of the same recorded event to match audio position in your timeline.