Originally posted by jpaulb Had a problem a week ago. had to patch into a mixing board with a XLR connecter, mono output, naturally I left my XLR mono to 3.5mm stereo adapter at home, the sound man had an adapter and a mono patch cord which we thought would work. I had channel dropouts, hum. Next time I used my XLR to stereo, with a stereo cord; perfect sound.. If you know where you can use a stereo mic or a mono to stereo adapter, even for 30 second to check the quality. It could be mechanical tolerance. It may save you sending the camera to get butchered.
btw I been running Linux since Windoze XP was in testing, wouldn't know about all those fancy apps.
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thanks for the tips again but I'm sure the camera's left channel's gone, almost dead!
and it wasn't like this in the past as i managed to find an old video i had shot in 2011 with the K-5 using that silly yet good small external computer mic and it was in stereo, both channels working quite fine although a little too noisy!
so, it's a 'new' thing that must have happened in more recent times ... (probably when a mic was connected to the camera some impact to its jack occurred somewhere without me noticing and camera's mic socket got damaged ...)
>>> the last test i did right now was to record a short video using K-5's own inbuilt mic and it works on both channels albeit in mono ... so, the camera's internal sound circuitry is still good and the problem is at the mic input socket ...
it's surely repairable but no, i'm certainly NOT sending it for the repairs, nor would i be doing that myself ... (after all, the amount of money you have to spend on such non-guaranteed costs could well be spent on a new lens or device or even maybe on a new nice Pentax body such as the KP or KS-2 ... :-) maybe, and i'll test it later, if i use a tiny 'lifter' piece of thin cardboard or something similar, it'll help to get the connection on the socket's left channel back to working correctly as before ... have an old laptop with its power socket suffering from a similar slight damage and the same trick has worked there successfully, using it right now to make this post here ...)
besides, one channel working for now is fine and worst case scenario would be i'd copy that channel's audio to the other in post and do things there to make it sound almost like stereo! ;-) (have done this in the ancient past with analog sound and it works!)
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things you said about an adapter causing hum etc ...
well, using adapters of all kinds for any application has always been tricky as they may create issues such as hum, noise, insecure connections and so on ... best to avoid them!
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the tip i gave you about testing sound channels in Windows is there in the lousy OS itself where you make changes to its sound playback settings by default ... no need for any kind of apps to do that really ... :-)
but if you've been a lucky Linux user for such a long time, then that's really good news for me as well since i've been willing to switch to Linux (or add it as well at least) since about the same time as you have done so and it's not happened yet ... (have used a Linux Knoppix CD for retrieving 'dead' data from Windows HD units though, just like they do in Micro$oft, and it's worked great ... "Windows Loves Linux!" you know ...)
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btw, you're right K-5 may not be so good as a candid camera on the streets but its in-camera SR (shake reduction / image stabilization) works fine enough! you just need to make sure its batteries are fully charged when using the SR with video ... :-)
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MANY THANKS again for your cooperation and if i manage to solve this problem in a sure way later, i'd certainly post the results here! best regards.