Tom 7 Radar: Sans Pellegrino and a bug

[ back to Tom 7 Radar ]

m
u
s
i
c

Sans Pellegrino and a bug (23 Aug 2009 at 17:21)

Here is a new T7ES song called Sans Pellegrino.

Tom 7 Entertainment System - Sans Pellegrino

— ❧ —

Related: I have been working on several different pieces of audio-generating software and hardware. One of my favorite things about doing this is the crazy ways that stuff can fail, and the unexpected sounds that result. My most current thing is some microcontroller-based sound generation for secret project EG. As part of testing it I created what I think is my first actual chiptune, in the sense that the music is generated by a microchip dedicated to the purpose, not some software emulator or hi-fi MIDI synthesizer. Here is Sensations (chip error); the sound quality is very bad because the only way I have to record this is to hold a mic up to a speaker. It starts out fine but goes to shit pretty soon. What's actually happening is that I'm not making the realtime deadline for emitting samples (chip is only 12mhz) because I'm doing too much computation when there are more than 2 notes sounding simultaneously. Because it's basically deterministic and only generating sound, this actually just slows down everything: the length of the notes and their corresponding pitch, by a factor depending on how many simultaneous notes there are. I had a good laugh about this.

I'm usually very careful when programming microcontrollers because it's way harder to debug than in a regular computer, if you get it wrong. I'm proud to report that this was compile/flash/test #2; the first didn't do anything because I forgot to increment the index into the song; the third worked exactly as I wanted. More on this project soon, I think.

c
o
m
m
e
n
t

Adam (c-71-236-65-235.hsd1.pa.comcast.net) – 08.23.09 18:53:18

chip error: 100% brilliant

c
o
m
m
e
n
t

jcreed (ip-216-46-71-107.nyc.megapath.net) – 08.23.09 19:38:04

❧: One of my all-time favorite unicode codepoints!

c
o
m
m
e
n
t

Tom 7 (h-69-3-248-56.noclli.covad.net) – 08.23.09 22:44:36

from you all right ❧ I learned it from watching you

c
o
m
m
e
n
t

mike. (red-naped-sapsucker.bdi.com) – 08.24.09 09:00:38

Pics or it didn't happen.

c
o
m
m
e
n
t

Adam (bering.isr.cs.cmu.edu) – 08.27.09 13:41:28

Request PubSubHubbub on comments

c
o
m
m
e
n
t

Tom 7 (h-69-3-248-56.noclli.covad.net) – 08.27.09 17:18:19

http://radar.spacebar.org/f/a/weblog/commentsrss/1

c
o
m
m
e
n
t

raskrutka (176.195.246.203) – 04.09.14 10:08:40

NO THERE WILL NOT BE A PROMOTION FOR FREE KIDS ON THE AUTO TRAIN. REASON FOR THAT IS BECAUSE RIDERSHIP IS UP, AND THE ONLY REASON WE DO PROMOTIONS IS TO INCREASE RIDERSHIP WHEN ITS LOW BUT ITS NO NEED TO DO THAT BECAUSE SOME TRAINS AS FAR AS JANUARY OF NEXT YEAR FOR THE AUTO TRAIN ARE SOLD OUT SO UNFORTUNATELY THERE ARE NO PROMOTIONS FOR CHILDREN RIGHT NOW JUST THE REGULAR HALF OFF FARE.

p
o
s
t

a

c
o
m
m
e
n
t

[ Tom 7 Radar • Tom 7 on Google+ • on Twitter • on Facebook ]