VHS Conversion - Repetitive weird sound.

[stalkishi]

Hi All,

Still fairly new to video...

I am converting my old VHSs (Home Movies - roughly 20 year old) to DVD. I have my VHS Player connected to a Panasonic NV GS55 camcorder and the camcorder connected to the PC via Firewire.

On all the transfers I have done I am getting a strange repetitive bit of audio coming through. I have attached a .wav file of it.
It seems to appear at the start of each new scene and it usually always the same sound and length (I imagine were the camcorder has been stopped and then restarted?).

Does anyone know what this is and is it possible to prevent it from transferring across?

The only theories I can think of is perhaps it is some kind of signal to mark a new scene?

To get rid of it in the final DVD I have just been splicing the small section of video and silencing the audio. Any other suggestions on a better work around this would also be very welcome.

Thanks in advance for you time and replies

[Cornucopia]

Sounds like white noise (hiss) to me, at least on my tablet.

Could it be that your dv capping app is defaulting to one audio samplerate, until it gets enough of a signal in the desired SR, but then takes a moment to adjust itself and that noise is what you get in that in-between period.

Scott

[jagabo]

Sounds like white noise (hiss) to me, at least on my tablet.

Something's wrong with your tablet! There are obvious big clicks at ~1/20 second intervals:



I don' t know what the cause is but Audacity's click removal filter can get rid of them. Sample attached. I don't know if that other bit of static near the end of the clip is related.

[stalkishi]

[Attachment 17632 - Click to enlarge]

I don' t know what the cause is but Audacity's click removal filter can get rid of them. Sample attached. I don't know if that other bit of static near the end of the clip is related.

Jagabo - Thank you - This is excellent...going to save me so much time. Just did a test there and its working great

I am working with .avi files and have got them into Audacity by installing FFmpeg.

What is the best way to get the video and audio back together for burning to DVD. Will I have to use a video editing program or is there a way to join them in audacity?

Thanks again.

[jagabo]

I don't know of any way within Audacity to mux your new audio with your video. You'll need to use a separate muxing tool.

[stalkishi]

Ok cool....I'll look into it.

Thanks again for your help and quick replies

[Cornucopia]

Hahaha! No, there's not much wrong with my tablet. The OP encoded that wav file in FLOAT format (an option in the WAV spec but VERY non-standard). I'm not surprised a low-mid level consumer app wouldn't support it and gave white noise instead.

@stalkishi, are you doing a LIVE DV capture? or are you recording first onto DV tape and then capping from the tape? Try both options with the same material to see if there's a difference. Also this will help isolate where the noise is being introduced.

Scott

[stalkishi]

I am indeed doing LIVE DV capture. I'll try recording to the tape first and see if that affects it.

All FYI I've captured a 2 hour tape that was edited by a professional and there is no sign of the 'clicking' at all. Mind you that tape is also only 10 years old.

Thanks