mmalex

TLDR: if you've got a bunch of delays in series, for example all-pass filters in a reverb, put them all in a single big buffer and let them crawl over each other for a perf win!

recently I was fiddling around with my hobby reverb code, in preparation for porting it onto a smaller/slower CPU. I'd implemented a loop-of-allpass filters type reverb, just like everybody else, and indeed, I basically had the classic 'OOP'ish abstraction of an 'allpass' struct that was, say, 313 samples long, and... did an allpass. on its own little float buffer[313]. (well, short integer, not float, but thats not relevant) I'll write out the code in a moment.

but then I was browsing the internet one night, as you do, and stumbled on this old post by Sean Costello of Valhalla DSP fame - noting the sad passing of Alesis founder and general all-round DSP legend, Keith Barr. https://valhalladsp.com/2010/08/25/rip-keith-barr/

It's worth a read just for his wonderful anecdote about the birth of the midiverb - which spawned the thou

rogerallen

;; Roger's Simple .emacs 

;; ----------------------------------------------------------------------
;; global variables & settings
(setq auto-save-default         t
      auto-save-interval        1000
      delete-auto-save-files    nil
      make-backup-files         nil
      require-final-newline     t
      compile-command           "make -k "

jamesbowman

/data/backup/$TODAY#!/bin/bash -e

read -r YESTERDAY TODAY <<<$(
python3 -c '
import datetime
def day_to_slot(n):
  return bin(n)[::-1].index("1")
n = datetime.date.today().toordinal()
print(day_to_slot(n - 1))
print(day_to_slot(n))

TimOverboard

#! /bin/bash
#
# -SCOPE
# This script will replace the shared library files lwjgl.so and libopenal.so
# contained in the minecraft lwjgl *natives-linux.jar with those in a specified
# directory and update the associated sha1sum.
# The purpose of this is to enable playing of "standard" minecraft
# on non x86 / i386 chipsets running linux. Eg. ARM.
#
# -IMPORTANT

wangruohui

In this article, I will share some of my experience on installing NVIDIA driver and CUDA on Linux OS. Here I mainly use Ubuntu as example. Comments for CentOS/Fedora are also provided as much as I can.

Table of Contents

• Install NVIDIA Graphics Driver via apt-get
• Install NVIDIA Graphics Driver via runfile
  • Remove Previous Installations (Important)
  • Download the Driver
  • Install Dependencies
  • Creat Blacklist for Nouveau Driver

• Stop lightdm/gdm/kdm

MichaelPote

#
# Himawari-8 Downloader
#
#
#
# This script will scrape the latest image from the Himawari-8 satellite, recombining the tiled image,
# converting it to a JPG which is saved in My Pictures\Himawari\ and then set as the desktop background.
#
# http://himawari8.nict.go.jp/himawari8-image.htm
#

briantjacobs

# EPIC Daily “Blue Marble” API

The API URL is: http://epic.gsfc.nasa.gov/api/images.php

This gets you a list of the latest day’s images & metadata.

OR

http://epic.gsfc.nasa.gov/api/images.php?date=YYYY-M-D&w=X&e=Y

ctford

(defmacro deftrack

  "Defines an instrument with frequency, duration, volume, position and wet pre-defined.
  NB: these variables will shadow any instances in a wider scope.
  
  (deftrack simple [vibrato 3]
    (* (saw frequency) (sin-osc vibrato)) ; Signal
    (adsr))                               ; Envelope
  
  (simple :frequency 440 :position -1 :wet 1)

Coderlane

#!/bin/bash

# This script will copy the newly compiled lwjgl.so and libopenal.so 
# from the specified directory into the correct minecraft jar file.
# It will then compute and update the correct sha1sum.
#
# First Arguement (Required): 
#    Path to the directory containing:
#    lwjgl.so and libopenal.so
# 

Misophistful

(ns apples.core
  (:require [play-clj.core :refer :all]
            [play-clj.g2d :refer :all]
            [play-clj.math :refer :all]))

(declare apples main-screen)
(def speed 14)

(defn- get-direction []
  (cond