One of the first few recordings I made with my Sony PCM-D50 was to capture traffic ambiance. This was really a pretty good test for the stereo imaging of the built in mics. I held the device, so there is some handling noise, although I did put a wind screen on the D50. This recording would have been impossible without it. The mics on the D50 are very sensitive to wind. Even indoors if an object, like a door, moves the air near the unprotected mics you will hear the capsules flapping in the breeze. Despite the wind screen you can hear a bit of wind noise around 00:34. The stereo image is acceptable, but it’s not as broad as other stereo mics I’ve used such as the Shure VP88. I have yet to try the 120 degree, Y pattern setting, which I imagine will spread the image considerably.
This is not a website about my cat. First of all, the cats are not mine. I just live with them. Secondly, I can get away with this because I’m posting an animal sound. Anyway, before I get myself in trouble by saying something regrettable about cats, my wife’s cat Minuit (French for midnight) has a really great purr. I managed to capture a little bit of it along with some cat swallows and a partial meow the other night when I first got my Sony PCM-D50. The photograph is not Minuit, but actually his chief rival, Caro, the newest edition to the family who embodies pure evil. Just look at those eyes! 
I found my shiny, new PCM-D50 in a box on my doorstep when I came home on Thursday evening. Luckily it was still there. UPS ignored my note to deliver it to the neighbor if no one answered my door. I haven’t had much time to play with it yet, but I have made a few test recordings in my house. It’s been freezing outside the last few days, so the forced air heating is on constantly providing every recording with some nasty background noise. To avoid the noise I made a few recordings in my bathroom. Naturally the first thing I recorded in there was the toilet flushing. Here it is in all its gurgling glory.
In order to get this example of feedback I ran my suitcase model Rhodes, which I confine to my studio, through an outboard processor with some nice amp modeling and cranked up the gain. For the processing I used an eleven year old Yamaha A3000 sampler. The A3000 allows you to edit and apply processing to an incoming signal and it has some pretty nice sounding effects. Once I had adjusted the processing I held down the sustain pedal on the Rhodes and let the amplification do the rest. Tapping or gently knocking the instrument also produced some nice sounds. Here’s a snippet of the results. 
This tiny sample of audio represents the instant that my iPod ran out of battery life while recording a performance of myself, Nils Westdal and Graham O’Brien on drums from Monday, November 17, 2008 at Cafe Barbette in Minneapolis. 
This afternoon I stumbled upon another one of my recent FM synthesis experiments from November 2, 2008. On that day I recorded eight minutes of output from select randomized programs that I produced using a MaxMSP patch called X.FM. You can hear all of the examples I have posted so far by clicking on the 
I top and tailed this clip of ambiance from a popular lunch spot in downtown Minneapolis, applying quick fades in the beginning and end of the twenty four second example. I also applied normalization to boost the levels. 
A couple of weeks ago, while working in the studio with Nils Westdal, we decided to experiment with an old amplifier that has a built in spring reverb. We plugged the direct out into a firewire interface and hit the record button in the software. Nothing was plugged into the amp, but by turning up the reverb knob all the way and the volume most of the way up, the spring reverb became very sensitive to vibrations. All that was left to do was to bang the amp around a bit while capturing the output. 
I recently recorded the sound of Caribbean surf and the gurgling of the waves as they receded from tide pools on a beach near Playa del Carmen in Quintana Roo, Mexico. I did my best to shield the wind from the mic, but the cheap foam wind screen I brought with me was painfully inadequate.