Problems with Intensity Pro VHS no sound

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Brian Frye

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  • Joined: Mon Aug 07, 2017 2:10 pm

Problems with Intensity Pro VHS no sound

PostMon Aug 07, 2017 2:30 pm

Hello all,

I bought the Intensity Pro 4k to capture for a few different applications. The one application I'm having trouble with is capturing from VHS homemade movies. I cannot get sound to come in via Media Express with the blank VHS tapes you could buy to film homemade movies on. Yet, if I put in a pro VHS, like Godfather. It works just fine, levels come in and I can capture that. I've tried multiple recordable VHS' and no luck.

Here's the signal flow to help understand:

Panasonic AG-7350 VHS to Intensity Pro 4k in a Mac Pro 5,1 into Media Express (I've also tried capturing to Premiere Pro and same thing, I can use pro VHS and the sound comes in but not with homemade VHS).

Let me know your thoughts.


Dave Johnstone

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  • Location: Adelaide

Re: Problems with Intensity Pro VHS no sound

PostTue Aug 08, 2017 2:35 am

Are you connected to the "NORM/HiFi" audio output and have you checked the "NORM/HiFi" audio switch? A pro tape will probably have HiFi audio whereas your home movies may not.


Freelance Television Broadcast Engineer
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Re: Problems with Intensity Pro VHS no sound

PostFri Aug 11, 2017 3:00 pm

Hi..What i have experienced with vhs that they do not keep picture in sync so to say and if it jumps, has break on it etc then all the pro kind capture cards go mad. I have solved this pretty eazy capturing from Sony small DV camera in such way that i have connected VHS output to DV cameras analogue input and on pass trough mode sent all the picture then to computer as DV. Never had sync or jumping problem this way.
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Colin Barrett

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Re: Problems with Intensity Pro VHS no sound

PostWed Aug 16, 2017 10:45 am

This "pass-through" method is one that I used in the late '90s and early '00s and - as you correctly say - it does tend to work OK because the incoming signal is corrected by the input converter in the camcorder. However, you're a bit limited in that you only have either a DV-MOV (Apple) or DV-AVI (Windows) file at the other end of the FireWire cable due to the very nature of the interface, and the DV stream is subject to a 5:1 compression by default.
Blackmagic Teranex 2D, Ultrastudio Express, Intensity Shuttle (Thunderbolt), Two H.264 Pro Recorders (Mac OSX) & lots of old VTRs used for digital archiving of legacy video formats for major libraries, broadcasters, universities and public archives.

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