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Hello,
I'm using a Canon XM2 camcorder to transfer my miniDV tapes via FireWire.
Things worked out quite easily; I used WinDV, connected my camcorder, hit capture and the different segments got saved onto my Windows PC.
It was almost too good to be true, because when I was checking the recordings, I noticed that some segments have no audio.
The audio plays on the camcorder, so it must be related to WinDV.
I read something that WinDV has problems with mixed audio frequencies; could this be the reason?
I came across another tool, "Capture Flux. It looks like there the audio is recorded correctly, but here the whole tape is one big file.
Any recommendations on how I can transfer the tape 1:1 (A/V) to my PC and split the tape automatically in segments (preferred with date/time naming)?
Thanks.
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Odd. Try Scenalyzer. It's another DV-only transferer. My guide here.
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It's probably a type 1 vs. type 2 DV AVI issue. Type 1 has the video and audio streams saved within the AVI file marked as a single video stream. Type 2 has the audio as a second stream within the AVI file marked as an audio stream. Some software works with one type, some with the other. There are programs that convert between the two type but I forget what they're called.
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https://www.videohelp.com/software/DVdateThere are programs that convert between the two type but I forget what they're called.
You can set WinDV to create/transfer/capture Type 2 AVIs. -
dv avi can be recorded at 48k htz 2 channel or 32k htz 4 channel. if the tape switches back and forth between the 2 types windv might not.
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"a lot of people are better dead" - prisoner KSC2-303 -
Okay, all 32 kHz files don't play the audio correct, even when the audio track is present:
I tried to convert the audio to 48 kHz "ffmpeg -i input.avi -c:v copy -c:a pcm_s16le -ar 48000 output.avi", but didn't change anything.Code:General Format : AVI Format/Info : Audio Video Interleave Commercial name : DVCAM Format settings : BitmapInfoHeader / WaveFormatEx File size : 53.6 MiB Duration : 15 s 520 ms Overall bit rate mode : Constant Overall bit rate : 29.0 Mb/s Frame rate : 25.000 FPS Recorded date : 2007-05-18 13:55:55.000 Video ID : 0 Format : DV Commercial name : DVCAM Codec ID : dvsd Codec ID/Hint : Sony Duration : 15 s 520 ms Bit rate mode : Constant Bit rate : 24.4 Mb/s Width : 720 pixels Height : 576 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 25.000 FPS Standard : PAL Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Bottom Field First Compression mode : Lossy Bits/(Pixel*Frame) : 2.357 Time code of first frame : 00:00:00:10 Time code source : Subcode time code Stream size : 53.3 MiB (99%) Audio ID : 1 Format : PCM Format settings : Little / Signed Codec ID : 1 Duration : 440 ms Bit rate mode : Constant Bit rate : 1 024 kb/s Channel(s) : 2 channels Sampling rate : 32.0 kHz Bit depth : 16 bits Stream size : 55.0 KiB (0%) Alignment : Aligned on interleaves Interleave, duration : 1411 ms (35.27 video frames) Interleave, preload duration : 40 ms
The tape was copied with as Type 2 with WinDV.
Is there any further conversion needed, or the files are simply damaged as audio duration shows 440 ms? -
DVDate can convert back and forth between type 1 and type 2 DV AVI.
https://www.videohelp.com/software/DVdate
Also note that MediaInfo shows the audio data for both type 1 and type 2 but for type 1 it shows the audio is muxed in the video stream:
Code:Video ID : 0 Format : DV Duration : 16 s 840 ms Bit rate mode : Constant Bit rate : 24.4 Mb/s Width : 720 pixels Height : 576 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 25.000 FPS Standard : PAL Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Bottom Field First Compression mode : Lossy Bits/(Pixel*Frame) : 2.357 Time code of first frame : 00:01:32:20 Time code source : Subcode time code Stream size : 57.8 MiB (100%) Audio #1 ID : 0-0 Format : PCM Format settings : Big / Signed Muxing mode : DV Muxing mode, more info : Muxed in Video #1 Duration : 16 s 840 ms Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 2 channels Sampling rate : 32.0 kHz Bit depth : 12 bits Stream size : 1.54 MiB (3%) Audio #2 ID : 0-1 Format : PCM Format settings : Big / Signed Muxing mode : DV Muxing mode, more info : Muxed in Video #1 Duration : 16 s 840 ms Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 2 channels Sampling rate : 32.0 kHz Bit depth : 12 bits Stream size : 1.54 MiB (3%)
Last edited by jagabo; 22nd Mar 2025 at 09:51.
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I remember having that kind of issues too in the past when I had recorded some segments in 32kHz when using Digital8.Originally Posted by Name
I used Scenalyzer live and started the capture in the middle of a 32kHz segment, then rewinding/recapturing the full segment.
Or set your camera in 32kHz audio mode so the camera/Scenalyzer initializes in 32kHz mode.
You have to play around with Scenalyzer or other capture tool a bit.Last edited by The_Doman; 22nd Mar 2025 at 12:33.
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iirc you need to do the same with windv. go to the segment with 32khz and start playing it on cam, pause, then start windv to transfer it.
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"a lot of people are better dead" - prisoner KSC2-303 -
Alright, I tested now WinDV, dvgrab, and Scenalyzer.
WinDV:
The segments got split correctly according to the timestamps, audio was missing for 32 kHz segments.
dvgrab:
Command:Most of the segments were split correctly, but some were combined even when the timestamp was clearly different, some smaller segments haven't been copied at all, 32 kHz audio segments got converted to 48 kHz, and the audio worked.Code:dvgrab --rewind --autosplit --timestamp --size 0 --showstatus dv-
Scenalyzer:
The segments got split correctly according to the timestamps, no segments were missing, 32 kHz audio segments got converted to 48 kHz, and the audio worked.
When checking the AVI files with Mediainfo I noticed a strange entry in the general section:
But this could be resolved with a simple FFMPEG command:Code:Conformance errors : 1 AVI : Yes INFO : Yes sTCO : Yes General compliance : Element size 2628 is more than maximal permitted size 123 (offset 0xFE69)
Code:ffmpeg -i corrupted.avi -c:v copy -c:a copy fixed.avi
For me, Scenalyzer was the winner, even when I had to rework the AVI files, but in the end everything worked. -
@Name, I'm curious about whether DVDate would fix the audio in the files that appear to have it missing. Could you attach one of them for us to have a play with, or run DVDate yourself (it doesn't install; it's "portable")?
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Not that I don't want to upload a video, but these tapes just contain personal videos of other people. Therefore, I don't want to share it that publicly.
But I converted an affected Type 2 into Type 1. Type 2 was completely silent, and Type 1 just introduces some "white" noise sound. Nothing useful.
I believe because of the 32 kHz issue, there was no sound at all recorded because the duration is "440 ms" and the stream size is "55.0 KiB".
Type 2:
Type 1 (converted):Code:General Format : AVI Format/Info : Audio Video Interleave Commercial name : DVCAM Format settings : BitmapInfoHeader / WaveFormatEx File size : 53.6 MiB Duration : 15 s 520 ms Overall bit rate mode : Constant Overall bit rate : 29.0 Mb/s Frame rate : 25.000 FPS Recorded date : 2007-05-18 13:55:55.000 Video ID : 0 Format : DV Commercial name : DVCAM Codec ID : dvsd Codec ID/Hint : Sony Duration : 15 s 520 ms Bit rate mode : Constant Bit rate : 24.4 Mb/s Width : 720 pixels Height : 576 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 25.000 FPS Standard : PAL Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Bottom Field First Compression mode : Lossy Bits/(Pixel*Frame) : 2.357 Time code of first frame : 00:00:00:10 Time code source : Subcode time code Stream size : 53.3 MiB (99%) Audio ID : 1 Format : PCM Format settings : Little / Signed Codec ID : 1 Duration : 440 ms Bit rate mode : Constant Bit rate : 1 024 kb/s Channel(s) : 2 channels Sampling rate : 32.0 kHz Bit depth : 16 bits Stream size : 55.0 KiB (0%) Alignment : Aligned on interleaves Interleave, duration : 1411 ms (35.27 video frames) Interleave, preload duration : 40 ms
Code:General Format : AVI Format/Info : Audio Video Interleave Commercial name : DV File size : 53.5 MiB Duration : 15 s 520 ms Overall bit rate mode : Constant Overall bit rate : 28.9 Mb/s Frame rate : 25.000 FPS Recorded date : 2007-05-18 13:55:55.000 Video ID : 0 Format : DV Duration : 15 s 520 ms Bit rate mode : Constant Bit rate : 24.4 Mb/s Width : 720 pixels Height : 576 pixels Display aspect ratio : 4:3 Frame rate mode : Constant Frame rate : 25.000 FPS Standard : PAL Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Bottom Field First Compression mode : Lossy Bits/(Pixel*Frame) : 2.357 Time code of first frame : 00:00:00:10 Time code source : Subcode time code Stream size : 53.3 MiB (100%) Audio #1 ID : 0-0 Format : PCM Format settings : Big / Signed Muxing mode : DV Muxing mode, more info : Muxed in Video #1 Duration : 15 s 520 ms Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 2 channels Sampling rate : 32.0 kHz Bit depth : 12 bits Stream size : 1.42 MiB (3%) Audio #2 ID : 0-1 Format : PCM Format settings : Big / Signed Muxing mode : DV Muxing mode, more info : Muxed in Video #1 Duration : 15 s 520 ms Bit rate mode : Constant Bit rate : 768 kb/s Channel(s) : 2 channels Sampling rate : 32.0 kHz Bit depth : 12 bits Stream size : 1.42 MiB (3%)
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@Name, understand, thanks for the update. It sounds like the camcorder didn't record the audio correctly if random scenes are playing up. There are various audio recording modes but I don't think they would produce the errors you're seeing.
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Honestly, these recordings are from 2007. With Scenalyzer I found a tool that was able to transfer everything and it worked. Therefore, I will not troubleshoot this topic further.
I'm just not sure if it is really the recording/tape itself, as the audio is playing on the camcorder. Furthermore, dvgrab and Scenalyzer were able to process the audio correctly, just WinDV had issues (with 32 kHz segments).
It was just interesting to see that 3 different tools produce 3 different outputs, even when the task looked rather simple: copying a miniDV tape via FireWire onto a PC.
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Scenalyzer also has some options how to handle the different audio formats during the capture.
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