Hi Jean Great test :) I have played with your demo with audacity to reduce the background noise, I think it has barely disappear
http://en.qi-hardware.com/wiki/File:Arecorder-demo_noisereduction.ogg due is a constant background maybe some with skills can develop a filter to pipe the mic input taking a lock at audacity code or maybe there is some audio console tool that can do the same and can be ported. any way good job :) 2011/1/1 Jane Andreas <[email protected]>: > This is a first go at making "artistic content" on the Ben, so results are > experimental. I adjusted settings on alsamixer and settled on 100 % capture, > 33% mic volume. I found that au format is not supported on the Ben for > whatever reason. I used the -f dat option for 48000 sample rate. > > As for the content, I simply improvised my version of a very famous song, > see if you can guess it. > > this should give an example of how recorded files actually sound when played > elsewhere. > > the only problems I met were that there seemed to be a sharp whine on the > playback when I used the nanonote, as if it recorded and amplified noise, > even when I lowered capture level to 74 it was still mildly present. Upon > playing the file on my laptop, the effect is much less so I assume it at > least partially has to do with the nanonote speaker. > > due to the fact that the Microsoft WAV original was 34MB, i elected to use > 'oggenc' on my laptop to reduce the size to 2.2MB and use a free format. > other than that small amount of processing, the Nanonote was the enabling > hardware. > > as a final note, it would be nice to have (maybe we already do) ogg encoding > tools locally on the Nano. > > the content is not the best, but it is the process at this point, not the > quality of my musical skills ;) > > enjoy and hack well > > -jain > > > http://en.qi-hardware.com/wiki/File:Arecorder-demo.ogg > _______________________________________________ > Qi Hardware Discussion List > Mail to list (members only): [email protected] > Subscribe or Unsubscribe: > http://lists.en.qi-hardware.com/mailman/listinfo/discussion > -- David Reyes Samblas Martinez http://www.tuxbrain.com Open ultraportable & embedded solutions Ben NanoNote, Arduino, Openmoko Hey, watch out!!! There's a linux in your pocket!!! _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
