Trimming then extracting audio

[chrishallowell]

Hi everyone,

Here's a script I am using but I need to know how to extract the audio into a wav taking into account the trims in the script to ensure the audio matches the video. Can I use VirtualDubMod -> Open avs -> demux to wav?

avs -> m2v using HCGui
avs -> wav using VirtualDubMod

avs:
LoadPlugin("degrainmedian.dll")
LoadPlugin("fft3dfilter.dll")
LoadPlugin("ColorMatrix.dll")
LoadPlugin("AudioLimiter.dll")
LoadPlugin("soxfilter.dll")
loadplugin("SoundOut.dll")
avisource("E:\Orginal with audio -480ms delay.AVI",audio=true)
AssumeFPS("ntsc_video",sync_audio=true)
SSRC(44100)
scene1 =Trim(101,4458).Fadeio(30)
scene2 =Trim(4511,20608).Fadeio(30)
scene3 =Trim(20609,23516).Fadeio(30)
scene4 =Trim(23517,25424).Fadeio(30)
scene5 =Trim(25425,34760).Fadeio(30)
scene6 =Trim(34761,36732).Fadeio(30)
scene7 =Trim(36733,40836).Fadeio(30)
scene8 =Trim(40837,59642).Fadeio(30)
scene9 =Trim(59738,76154).Fadeio(30)
scene10 =Trim(76155,80016).Fadeio(30)
scene11 =Trim(80017,85680).Fadeio(30)
UnalignedSplice(scene1,scene2,scene3,scene4,scene5 ,scene6,scene7,scene8,scene9,scene10,scene11)
ConvertToYV12()
DeGrainMedian (interlaced=true, limitY=4, limitUV=6, mode=5)
FFT3DFilter(interlaced=true, bt=3, sigma=3.0, plane=0, bw=64, bh=64, ow=32, oh=32)
ColorMatrix(interlaced=true)
Crop(0, 8, -0, -8) #crop 8 lines off the bottom
AddBorders(0, 8, 0, 8) #add 8 lines of black to the bottom

ConvertAudioToFloat().SSRC(41000)
fl = GetRightChannel()
fr = GetRightChannel()
cc = mixaudio(GetRightChannel(),GetRightChannel(),0.707 ,0.707)
lfe = GetRightChannel() #ConvertToMono(a).SoxFilter("lowpass 120","vol 1.2")
sl = GetRightChannel() #.amplify(-1.0)
sr = GetRightChannel() #.amplify(-1.0)
sl = DelayAudio(sl,0.02)
sr = DelayAudio(sr,0.02)
MergeChannels( fl, fr, cc, lfe, sl, sr).wavgainlimiter(1.0)
#SoundOut(output = "ac3", filename="Surround.ac3", autoclose = true, wait=0, overwritefile="Yes", showprogress=true, cbrrate = 384,acmod=7)
SoundOut()
Thanks,
Chris

[Soopafresh]

I would try fixing it before you do all of the trims, but you can try

DelayAudio(-0.480)

in the script

or is it without the "-"

try both.

[chrishallowell]

Sorry Soopafresh. I have already added the 480ms delay so the sound is in synch to the video in the avi: E:\Orginal with audio -480ms delay.AVI

Is the soundout() function smart enough to use the video that the avs script has for the audio? IE: Will there be audio for frame 4500 or will it be trimmed like the video is?

Thanks,
Chris

[Soopafresh]

Ah, I now understand what you're asking. I believe the answer is yes. You can always process both separately using the killvideo() and killaudio() commands, respectively. Try killing the video, then seeing if the audio trims in the right places.