Hello everyone. Rather than participate in the recent interesting discussions, I decided to record/process a song and fix my software, especially since my favorite window manager is none at all. I prefer running scripts while having a beer then taking a nap or watching a tape of Joe Shmoe 2. (I've never cried so much from laughing, but I'm easily amused.) And rather than another demo, I decided to post a complete song which utilizes the Green's function technique I have mentioned previously. I'd like to say that this song was created exclusively with Linux, or perhaps more appropriately, GNU audio software, but I used Windows sequencers. I used my own command-line software to process the mix, created from monophonic recordings of each musical part or sub-part. I then applied JAMin to the final mix, using another piece of my own software, jackd, and qarecord to capture the result. I then downsampled it with my own overlapping FFT program, then used lame to produce the mp3 file. I think that's all, but I could easily have left something out. As a matter of fact, I had to fix some bug in my stuff with "head --bytes=...." http://home.earthlink.net/~davidrclark/latest_mp3.html ---------------------------------- For the person who may have read the Green's function notes without falling asleep: The Green's function technique that was used was for a *point* source in three dimensions in a very large room (~12,000 m^3) except for the overhead kick drum for which I used a *volumetric* source. In the simulated concert hall, the overhead location is very close to the center of the room in one axis, so the timing for echoes is bad. Using the volumetric source diffuses this effect a little, just as rough surfaces diffuse sound in a concert hall (otherwise you'd hear it in a concert hall, also). This concert hall has about 3 billion modes and they're all represented. ---------------------------------- Regarding the piece itself, I've noticed that people like to comment about the actual music. Well, this is intended to be a demo, so it's "very-high-quality elevator music." The sound sources are a Korg N264 and a Roland XV-3080. My focus is on the mathematical physics first, then on the application (reverb, stereo separation, echo, filtering, etc.), then on the music --- until it's finished. Then I like to just listen.... This is the only area that I've ever worked in where I am my own customer, and it's really nice to have it that way. Damn nice. Thanks very much to the developers of GNU software, the Linux kernel people, and the developers of JAMin, jackd, qarecord, and lame. And a special thanks to the developer of the "head --bytes=..." utility. Regards to all, Dave.
