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Rockbox mail archiveSubject: Re: Use built-in MIC for auto-volume?Re: Use built-in MIC for auto-volume?
From: Jack Peel <jhp_at_cypress.com>
Date: Fri, 06 Sep 2002 10:06:16 -0700 Actually I think you can get the "level" of the input by reading one of the registers. Which is really what you want right ?. The only question is how much CPU are you going to burn checking it over and over again :) Which brings me to something that I would like to see (yes it's all about me! :) One thing that I really liked about the Archos software for the recorder was that it had level meters so I could see how strong the signal was coming out. This is really useful when I'm doing sound at a show, since I need to adjust the input gain to get it into the board correctly. I'm also afraid that it's one of those bright neon light kinda things :( Like those boom boxes with the 3D spectrum analyzer output (that is five bands) :) But I did find this feature useful. I was looking at the data sheet for the MP3 codec chip, and it looks like there are 4 registers that you can read to get this information. 2 for L/R record and 2 for L/R playback. The only thing that I'm concerned about is that it will take a lot of CPU to continually read this data and display it, and how do you regulate your self to not get in the way of the other threads for this "big neon light". It would also lend it self to being part of the custom WPS screen that if you want them to put %level_l or #level_r or whatever. That way if you like seeing the names you can see the names, if you want to see the levels you can see the levels :) (and you could make a "bigger neon light" by making all the lines on the screen be levels ! :) Jack Guy Devos wrote: > Nick, > > > I think the mic is just connected to the MAS device, meaning we > probably > > can't get at the signal whilst playing. > > Pitty . . . Received on 2002-09-06 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |