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4. Re: LS-10 operational question - UPDATE

Subject: 4. Re: LS-10 operational question - UPDATE
From: "Michael Oates" msohooates
Date: Fri Feb 20, 2009 9:16 am ((PST))
Bernie,

Do you know if the IR remote was plugged in?

The pops I am getting are also not equal. And it is definelty not the internal 
mics as I
only use external mics with their own power.

Mike

>We went into the field again yesterday AM and found the same pop and  
>click issue with the same
>device that introduced it a few weeks ago. While I believe now that  
>the problem is internal, the pops are not equal level across both  
>channels. I. e. one channel contains a "click" at a higher level than  
>the other. So it's probably not the (internal) mics.
>
>Also, yesterday, we got  a serious sampling error (loud electronic  
>noise overload across both channels) that lasted about 2 seconds. This  
>is all very curious. Olympus tech support has offered to change out  
>the unit so we hope that will eliminate the problem. Stay tuned...
>
>Bernie
>
>On Feb 20, 2009, at 6:38 AM, Philip Tyler wrote:
>
>> Some people have reported that the LS10 'drifts'.
>> It could be possible that these 'pops' could
>> be as a result of this?
>> Just a thought as I have had problems
>> with digital gear where if the clocking isn't
>> accurate enough you get 'pops' and 'clicks'
>> as a result.
>>
>> Let's hope it is the remote that causes them!
>>
>> Phil
>>
>> On 20 Feb 2009, at 14:07, "Michael Oates" <> wrote:
>>
>> Following up on this, I have had a few emails with Olympus support
>> and I have even let them have some files to look at. They say that
>> the recorder needs to go back for repair. Well to be honest I don't
>> think so, seeing as there are a number of people having the same
>> problem.
>>
>> Now a thought has just occurred to me: I am thinking that the problem
>> is one of the processor being interrupted while recording, but as
>> this is a dedicated machine, how can it be interrupted. Then it came
>> to me... I am sure that in the cases where I have had the pops, the
>> IR remote has been connected. Not necessarily been in use, but
>> plugged in. Perhaps the recorder is getting signals from that causing
>> the glitch?
>>
>> A long shot I know, but I want to ask all of you that have
>> experienced these pops, did you also have the remote plugged in at
>> the time?
>>
>> I am going to use the recorder with the remote taken off to see if
>> that stops the pops.
>>
>> If this is not the case, or even if it is, I urge everyone to contact
>> support giving as much detail about the problem as you can. If we
>> don't tell them, they are not going to do anything about it. This is
>> a dammed fine recorder, and I really want to be able to use it
>> reliably. The people here on this forum are more likely to spot these
>> pops as we tend to record rather quiet scenes. Someone recording a
>> band at a concert will not notice anything!!!
>>
>> Thanks,
>>
>> Mike
>>
>> --- In  Michael Oates <> wrote:
>> >
>> > Bernie,
>> >
>> > Unfortunately, I have also had some glitches, they can occur on
>> either right or left but
>> > never at the same time. The glitch is electronic in that is spread
>> across the full
>> > frequency spectrum and looks very similar to those you can get on
>> the PC when your audio
>> > editor gets interrupted by another process or when the latency is
>> not setup correctly.
>> >
>> > I have produced a sonograph of a couple of typical pops here:
>> > http://www.mikeoates.org/arl/misc/ls-10_pop.jpg
>> > The left pop is 0.02 seconds in length while the one on the right
>> is 0.01 seconds.
>> >
>> > I was thinking it may have been some electrical interference
>> because the battery box I am
>> > using for my external mics is not screened. In fact I am right now
>> this weekend building
>> > another one in a metal box in the hope that it solves the problem.
>> Now I am wondering if
>> > it will :(
>> >
>> > The glitch or pop sound has happened when recording inside in the
>> warm and outside in
>> > freezing conditions. It has also occurred at the two recording
>> settings I use: 44.1kHz
>> > 24bit and 96kHz 24bit. The image above is from a 96kHz recording.
>> >
>> > I should add that it only occurs on a small number of recordings,
>> most are fine.
>> >
>> > I have also got another problem, that I can't replicate, it has
>> happened just twice, in
>> > that (again using the same battery box and external mics) the Left
>> channel recorded at 6dB
>> > lower. This is from the moment of starting that recording, even
>> when I had just done
>> > previous recordings that were fine and all I did was press stop,
>> them start record again.
>> >
>> > I too am now rather concerned that there may be a fault with the
>> machine. But as I only
>> > ever use it with external mics, I have not been able to rule that
>> part out yet.
>> >
>> > Regards,
>> >
>> > Mike
>> >
>> > >I haven't be following posts on the LS-10 closely so forgive if
>> this
>> > >is a repeat.
>> > >
>> > >A student of mine just purchased one on my recommendation and when
>> we
>> > >came back from a short field trip there were a number of
>> disturbing
>> > >pops and clicks in the clip that sounded electronic or like
>> sampling
>> > >errors. She was recording 44.1/24bit and was not overloading. Any
>> > >similar experience with LS-10 owners in the group? If so, have
>> you
>> > >identified the problem?
>> > >
>> > >Bernie
>> > >
>> > >
>> > >Wild Sanctuary
>> > >POB 536
>> > >Glen Ellen, CA 95442
>> > >707-996-6677
>> > >http://www.wildsanctuary.com
>> > >
>> > >Google Earth zooms: http://earth.wildsanctuary.com
>> > >SKYPE: biophony
>> > >
>> > >
>> > >
>> >
>>
>>
>>
>> 
>
>Wild Sanctuary
>POB 536
>Glen Ellen, CA 95442
>707-996-6677
>http://www.wildsanctuary.com
>
>Google Earth zooms: http://earth.wildsanctuary.com
>SKYPE: biophony
>
>
>
>
>
>







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