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Subject: Re: Very low record levels using external mic
From: tenvelde_at_downtown.co.nz
Date: 2004-07-01


That seems a rather extravagant way to amplify the microphone level for
the Jukebox: the Jukebox is only capable of handling about 50dB of
dynamic range before you hit the noise level. This is about the same as a
cassette recorder. The only way to achieve quality results is to use the
digital in, but then you'll need not just a pre-amp, but an analogue to
digital converter as well.

If you're going to use an external microphone with the line in socket, you
will need a pre-amplifier, but for the Jukebox, you should be able to pick
up a reasonable one fairly cheaply.

John

> Erik Owens wrote:
>
>> Thanks, Christi, for the tip. I don't have a stereo with a mic jack,
>> but my laptop has one. That seems to record just fine with the new
>> mic. Does that prove anything, or do I need to try it on some other
>> device?
>
> Mic-in sockets on sound cards pre-amplify in a very naive way, which
> usually results in a very crackly signal. I'd say it indicates that you
> could do with a pre-amp of some description to link it to the Archos
> line-in. Given it's a condenser mike (nice, consider me jealous)
> depending on what you're wanting it for, you may want to consider a
> vacuum tube pre-amp. If it's just for memo taking or whatever, it's
> probably easier to stick with the internal mic.
>
> Christi
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>

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