Re: Re: sound APIs/programming

On Jul 10, 2005, at 5:24 PM, Seth Cameron wrote:

> This brings me back my original query about decent quality microphone
> recordings.  I've been able to make reasonable recordings from line  
> in CD
> sources, but all of my attempts at microphone recordings have  
> significant
> hiss and poor gain.

What kind of mic are you using?  Is it fairly high output, i.e. is  
the sensitivity > 20mV/Pa

> I'm looking at using a separate battery powered mic preamp, but the  
> smallest
> I can find is bigger than gumstix and requires 9 V. :-) So much for
> miniaturization....

I experimented with an electret condenser capsule from radio shack  
and a Canakit mic pre:

http://www.canakit.com/Contents/Divisions/Div_25.asp

I got a LOT more gain from the external preamp.


-------------------------------------------------------
This SF.Net email is sponsored by the 'Do More With Dual!' webinar happening
July 14 at 8am PDT/11am EDT. We invite you to explore the latest in dual
core and dual graphics technology at this free one hour event hosted by HP, 
AMD, and NVIDIA.  To register visit http://www.hp.com/go/dualwebinar