pratap singh wrote:
> Dear Naturerecordists,
>
> I have following two unrelated questions for your kind response.
>
> 1. Bit perfect transfer and Roland UA30: I am using Roland UA30
> for transferring my recordings (done using Sony TCD-D100 recoder
> at 44.1khtz sampling rate). I use 44.1 khtz settings in UA30 and
> my pc.I want to know whether the transfer will be bit perfect. If
> not, will there be noticeable degradation of quality?
Going to a pc and the .wav format the bit order will be reversed. This
should not cause problems, but it won't be bit perfect in that the order
will have changed.
There should be no degradation of quality.
> 2. Normal Life of Sony-TCD-D100 head? How can one monitor the
> condition of head? What can be done to increase the life of
> head?
With rotating drum heads for video, Sony used to give their expected
life in hundreds of hours, but not thousands. Then there was a period
when heads were rated at about 5000 hours. Then the design changed yet
again. Definitely less than the 5000 hour figure.
Best you can do to increase the life of the drum & heads is minimize run
time. That includes heads rotating in pause. And fast forward/rewind.
The enemy is simple mechanical wear and accumulation of debris. The
other thing to do to decrease head wear is use quality tape. And clean
the machine. Typical recommendations are for a cleaning every 10 - 30
hours. Cleaning tapes wear the heads, but hand cleaning will not if done
right.
Some links:
http://www.oade.com/tapers/headwear.html
http://www.tape.com/techinfo/datclean.html
Walt
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