ingoogni

import math, sugar
import iterit


const 
  SampleRate {.intdefine.} = 44100
  SRate* = SampleRate.float32


proc linOsc*[Tf, Tp: float or iterator:float](

ingoogni

import math

const
  SampleRate {.intdefine.} = 44100
  SRate* = SampleRate.float
  LutSize = 256  # Quarter sine wave
  Lut = static:
    var arr: array[LutSize, float]
    for i in 0..<LutSize:
      let angle = (i.float / LutSize.float) * (PI / 2.0)

ingoogni

Modal synthesis in Nim with a pool for modes, so one excite fast and they still properly decay. Cheesy bell, gong & mallet modes.

ingoogni

# FFT Stockham

# http://wwwa.pikara.ne.jp/okojisan/otfft-en/optimization1.html

# original source of scalar Nim version by "Amb" :
# https://gist.github.com/amb/4f70bcbea897024452d683b40d18be1f

# Timings
# === Scalar float64 ===
# FFT/IFFT test on 4096 points

ingoogni

import strutils
import math
import complex

const 
  SampleRate = 8000.0  # 8kHz
  TargetFrequency = 941.0  # 941 Hz
  FFTSize = 205
  N = FFTSize  # Block size

ingoogni

compile

> nim c -d:release -d:danger renderer.nim

to render image from prompt:

> renderer sincos.nims

Render a function to a grey scale image, using nimscripter https://github.com/beef331/nimscripter for realtime scriptable applications.

ingoogni

import vmath
import math

type
  ColinearSegmentError* = object of Defect
  
  Input2D = object
    dir: Vec2        # tangent vector at first input knot
    knot: seq[Vec2]
  

ingoogni

/*
Database schema SQLite for a table that keeps its own history and 
never deletes data. 

On update, historic data is kept under a new id and references the original
creation id. The end of life timestamp (ts_eol) is set so a time line can be
built. The new data is used to update the data under the existing id.

On delete, nothing is deleted. Only the ts_eol timestamp is set to current.
*/

ingoogni

# Compile:
# nim c --gc:orc --experimental:strictFuncs -d:ssl -d:nimStressOrc --import:std/httpcore sseClient.nim

# based on Harpoon https://github.com/juancarlospaco/harpoon

import std/[net,  macros, strutils, times, json, httpcore, uri]

type
  SSE = object
    comment: string

ingoogni

# Goertzel oscillator bank (scalar):
# (seconds: 208, nanosecond: 253406100)
# duration: 4440s samplerate: 44100 samples: 195804000
# 0.0000010635809590202449 seconds per sample @ 1000 oscillators

# Goertzel AVX oscillator bank:
# (seconds: 26, nanosecond: 403254200)
# duration: 4440s samplerate: 44100 samples: 195804000
# 0.00000013484532593818306 seconds per sample @ 1000 oscillators
# Speedup: 7.887414351371886x