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  #1  
05-25-2017, 05:57 PM
cpoosch cpoosch is offline
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Hello,

I have purchased a Sony EV-S7000. I am having a problem with playback audio on old tapes regardless of where they originally came from/were recorded on or which output source I choose (even the headphone jack). I have also verified that interference from some sort of SAP on the tapes wasn't fouling it either.

I have attached a sample of the "chatter" you can hear.

What should my next steps be to eliminate this?

Thanks for your help.

https://youtu.be/7co_Xo8s3X8

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  #2  
07-09-2017, 04:32 PM
cpoosch cpoosch is offline
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Anyone have any input?
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07-09-2017, 05:12 PM
juhok juhok is offline
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I haven't encountered anything exactly like that that wouldn't be burned in, but, I would begin by eliminating mechanical problems. Check if the linear audio part of the tape is damaged, check if the mechanism of the player works. Then try to adjust tracking.
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07-09-2017, 09:17 PM
dpalomaki dpalomaki is offline
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That clip sure sounds like a motor of sorts running near the mic, but per your post it isn't.

You might be able to filter it somewhat with a program like Audition. Make the noise profile from a section without any desired audio.

Have you tried the tapes in a different 8mm/Hi8 player to isolate the problem to the EV-S7000.

FWIW, 8mm/Hi8 does not use a linear audio track. Normal audio is AFM, and some units, like the EV-S7000 also support PCM audio. I take it your reference to SAP indicates that you set the audio monitor switch to STD to eliminate any possible PCM track source.
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07-11-2017, 08:03 PM
cpoosch cpoosch is offline
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I cleaned the heads to no avail. I did discover that audio is good on the coax output, so something is wacky on the component output. Good enough for now. Play with it later.
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07-12-2017, 05:49 AM
dpalomaki dpalomaki is offline
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Do i understand that the audio on the RF output (CH3/4) is OK?
If so, check the head phone output - it might be OK also, and usable for capture.

There is not much in the way of circuitry beyond where the RF unit picks up audio, so if it is OK I suspect a connector issue, or possibly a weird ground loop.
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07-12-2017, 06:09 AM
cpoosch cpoosch is offline
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Headphone loop has noise on it, too.
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  #8  
07-12-2017, 07:50 AM
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lordsmurf lordsmurf is offline
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You need to attach a WAV, FLAC or high-bitrate MP2/MP3 to a forum post. Youtube screws with audio.

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  #9  
07-13-2017, 05:31 AM
dpalomaki dpalomaki is offline
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Also, if you have other tapes, could you post a sample recorded at a less noise-prone venue, perhaps someone speaking in an other wise quiet location without track-like sound sources near by.

If you don't have a handy tape, try a record/playback cycle with the EV-S7000 with feed from a source such as the SD analog output of a STB or camcorder..
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