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#41
Posted to alt.music.mp3.hardware,rec.audio.pro,rec.audio.tech
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Which MP3 Recorder has the longest recording time?
Matt wrote:
There is a lower quality setting (I think it's 8kb/sec) which I expect should still be better then nothing, so I'll give that a try. I'm assuming the restriction is likely to be on the size of the file, rather then the length of the recording? The restriction could be on either, depending on the recorder you're using. The only 100% reliable way to check is to do a dry run. Mike's suggestion of making a dummy battery & connecting an external D cell to it is easy to do, & for a trial, need do no damage to your recorder. Neaten it up before you use it in anger, & you're there. The dummy battery can be made from a length of wood with a couple of the circular connectors used for earth connections on cars screwed into the ends with countersunk screws. Connect the D cell in its holder to the appropriate ends & you're done. Leave the battery cover off for testing, & then either cut a notch in it & put it back on for use or leave it off & tape the assembly together. Just watch out for the venue security people thinking it's a very small bomb. If you know them well enough for this not to be a problem, offer one of them a beer or two to place it for you. If you don't know them that well, there are likely to be blue flashing lights all over the place, given the current security status in the UK. ;-) The voltages of all alkaline cells are near enough identical (Nominally within a few hundredths of a volt), & your player won't know the difference. It'd possibly even survive a reverse polarity connection if you're lucky. -- Tciao for Now! John. |
#42
Posted to alt.music.mp3.hardware, rec.audio.pro, rec.audio.tech
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Which MP3 Recorder has the longest recording time?
On Jan 7, 12:00 pm, Matt wrote:
My recording I started going yesterday stopped a few minutes ago. There was still enough battery life left to keep the screen going (though would it stop if there wasn't enough to keep the recording going?), and another 26 hours of memory remaining. Sadly it didn't start a new file either. The file was just over 24 and a half hours long, and is 336MB in size. It's worth trying to continue the experiment with a larger power source. The file size that we know about is 2GB or 4 GB for a common computer operating system, but we know (nor can guess) nothing about your particular recorder. You should rig up a D cell to it, try it again, and see if it still stops at 336 MB. There is a lower quality setting (I think it's 8kb/sec) which I expect should still be better then nothing, so I'll give that a try. You may need to since you have about a day's worth of recording time left after recording for about a day, and you need one more day after that if you're really going to let it run for 3 days. I take it the current from a D cell is the same as that from a AAA since they are both 1.5V cells? The current is determined by the load (the recorder) and that doesn't change. You will not damage the recorder by powering it with a D cell as long as you don't hook it up backwards. And even then, they generally idiot proof these things since people are likely to put the battery in backwards sometimes. So if it doesn't run when you hook it up, check your connections. As an aside I've had a thought. By turning down the contrast on the small LCD screen to as low as possible and making sure the backlight doesn't come on for a brief few seconds at the start of the recording, can I expect much of an improvement in battery life? Probably not much, but maybe a little. The latest version of firmware allows you to turn off the blinking LED when it's recording. They say that conserves battery life but I actually think it's a "stealth" thing, or to eliminate the visual distraction if you have it sitting on a table at a meeting and everyone is watching the blinking light. |
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