The tkSnack sound module was developed at KTH in Stockholm, Sweden. A great module to generate sound, play and analyze sound files and speech. It was written using Tkinter and its native TCL language. Alas, the latest release is from 2005. However, the important file tkSnack.py can be converted to Python3 syntax very readily using the 2to3.py utlity file than comes with the Python3 installation.

Just a note: snack2210-py.zip has download size 745K

I show you a simple tone generator that will work fine with Python32 ...

Edited 5 Years Ago by vegaseat: n/a

#! /usr/bin/env python

# create a tone generator with Tkinter that plays a sine wave from 50 to 4000 hertz
# needs Python module  tkSnack  developed at KTH in Stockholm, Sweden
# get the free download: snack2210-py.zip
# from: http://www.speech.kth.se/snack/
# download size and date: 3.6M (December 14, 2005)
# I modified tkSnack.py to run with Python32 via utility 2to3.py
# on my system I copied tkSnack.py to
# C:\Python32\Lib and the folder snacklib to C:\Python32\tcl
# tested with Python32   by  vegaseat   02apr2011

"""
Frequency Note Table:
  Frequency   Note   MIDI#
    27.5000    A0     21
    29.1352    A#0    22
    30.8677    B0     23
    32.7032    C1     24
    34.6478    C#1    25   # C#1 = C1 * 1.059463094
    36.7081    D1     26   # 1.059463094 = 12th root of 2
    38.8909    D#1    27
    41.2034    E1     28
    43.6535    F1     29
    46.2493    F#1    30
    48.9994    G1     31
    51.9131    G#1    32
    55.0000    A1     33
    58.2705    A#1    34
    61.7354    B1     35
    65.4064    C2     36
    69.2957    C#2    37
    73.4162    D2     38
    77.7817    D#2    39
    82.4069    E2     40
    87.3071    F2     41
    92.4986    F#2    42
    97.9989    G2     43
   103.8262    G#2    44
   110.0000    A2     45
   116.5409    A#2    46
   123.4708    B2     47
   130.8128    C3     48
   138.5913    C#3    49
   146.8324    D3     50
   155.5635    D#3    51
   164.8138    E3     52
   174.6141    F3     53
   184.9972    F#3    54
   195.9977    G3     55
   207.6523    G#3    56
   220.0000    A3     57
   233.0819    A#3    58
   246.9417    B3     59
   261.6256    C4     60
   277.1826    C#4    61
   293.6648    D4     62
   311.1270    D#4    63
   329.6276    E4     64
   349.2282    F4     65
   369.9944    F#4    66
   391.9954    G4     67
   415.3047    G#4    68
   440.0000    A4     69
   466.1638    A#4    70
   493.8833    B4     71
   523.2511    C5     72
   554.3653    C#5    73
   587.3295    D5     74
   622.2540    D#5    75
   659.2551    E5     76
   698.4565    F5     77
   739.9888    F#5    78
   783.9909    G5     79
   830.6094    G#5    80
   880.0000    A5     81
   932.3275    A#5    82
   987.7666    B5     83
  1046.5023    C6     84
  1108.7305    C#6    85
  1174.6591    D6     86
  1244.5079    D#6    87
  1318.5102    E6     88
  1396.9129    F6     89
  1479.9777    F#6    90
  1567.9817    G6     91
  1661.2188    G#6    92
  1760.0000    A6     93
  1864.6550    A#6    94
  1975.5332    B6     95
  2093.0045    C7     96
  2217.4610    C#7    97
  2349.3181    D7     98
  2489.0159    D#7    99
  2637.0205    E7    100
  2793.8259    F7    101
  2959.9554    F#7   102
  3135.9635    G7    103
  3322.4376    G#7   104
  3520.0000    A7    105
  3729.3101    A#7   106
  3951.0664    B7    107
  4186.0090    C8    108
"""

try:
    # Python2
    import Tkinter as tk
except ImportError:
    # Python3
    import tkinter as tk

from tkSnack import *

root = tk.Tk()

initializeSnack(root)
"""AudioControllerSingleton().playLatency(100)"""

s = Sound()

filt = Filter('generator', 440.0)
        
def play():
   s.stop()
   s.play(filter=filt)
        
def stop():
   s.stop()        

def config(arg):
   type = var.get()
   if var.get() == "sine" :
      shape = 0.0
   elif var.get() == "rectangle" :
      shape = 0.5
   elif var.get() == "triangle" :
      shape = 0.5
   elif var.get() == "sawtooth" :
      type = "triangle"
      shape = 0.0
   else :
      shape = 0.0
   filt.configure(s1.get(), s2.get(), shape, type, -1)

f = tk.Frame(root)
f.pack()

s1 = tk.Scale(f, from_=4000, to=50, label="Frequency", length=200, command=config)
s1.pack(side='left')

s2 = tk.Scale(f, from_=32767, to=0, label="Amplitude", length=200, command=config)
s2.pack(side='left')

s1.set(440.0)
s2.set(20000)

var  = tk.StringVar()
var.set("sine")

menu = tk.OptionMenu(root, var, "sine", "rectangle", "triangle", "sawtooth", "noise")
menu.pack()
root.bind_all("<Button1-ButtonRelease>", config)

fb = tk.Frame(root)
fb.pack(side='bottom')
tk.Button(fb, bitmap='snackPlay', command=play).pack(side='left')
tk.Button(fb, bitmap='snackStop', command=stop).pack(side='left')

root.mainloop()

For those of you who are interested, here is a Python program that will do the conversion for you ...

# run_2to3_convert.py
#
# convert a Python2 code file to a Python3 code file
# generates a backup file and overwrites the original
# file with the converted file
#
# it is best to put this file into a special directory
# together with the Python2 file you want to convert
#
# run this program with Python32

import subprocess

# the Python2x code file you want to convert ...
# should be in the working directory
python2x_scriptfile = "tkSnack.py"

# location of python3 and convert utility
python3 = "C:/Python32/Python.exe"
utility = "C:/Python32/Tools/Scripts/2to3.py",
cmd = "-w"
subprocess.call([python3, utility, cmd, python2x_scriptfile])

Sorry, something went wrong here once again. Here is the tone generator code ...

#! /usr/bin/env python

# create a tone generator with Tkinter that plays a sine wave from 50 to 4000 hertz
# needs Python module  tkSnack  developed at KTH in Stockholm, Sweden
# get the free download: snack2210-py.zip
# from: http://www.speech.kth.se/snack/
# download size and date: 745k (December 14, 2005)
# I modified tkSnack.py to run with Python32 via utility 2to3.py
# on my system I copied tkSnack.py to
# C:\Python32\Lib and the folder snacklib to C:\Python32\tcl
# tested with Python32   by  vegaseat   02apr2011

"""
Frequency Note Table:
  Frequency   Note   MIDI#
    27.5000    A0     21
    29.1352    A#0    22
    30.8677    B0     23
    32.7032    C1     24
    34.6478    C#1    25   # C#1 = C1 * 1.059463094
    36.7081    D1     26   # 1.059463094 = 12th root of 2
    38.8909    D#1    27
    41.2034    E1     28
    43.6535    F1     29
    46.2493    F#1    30
    48.9994    G1     31
    51.9131    G#1    32
    55.0000    A1     33
    58.2705    A#1    34
    61.7354    B1     35
    65.4064    C2     36
    69.2957    C#2    37
    73.4162    D2     38
    77.7817    D#2    39
    82.4069    E2     40
    87.3071    F2     41
    92.4986    F#2    42
    97.9989    G2     43
   103.8262    G#2    44
   110.0000    A2     45
   116.5409    A#2    46
   123.4708    B2     47
   130.8128    C3     48
   138.5913    C#3    49
   146.8324    D3     50
   155.5635    D#3    51
   164.8138    E3     52
   174.6141    F3     53
   184.9972    F#3    54
   195.9977    G3     55
   207.6523    G#3    56
   220.0000    A3     57
   233.0819    A#3    58
   246.9417    B3     59
   261.6256    C4     60
   277.1826    C#4    61
   293.6648    D4     62
   311.1270    D#4    63
   329.6276    E4     64
   349.2282    F4     65
   369.9944    F#4    66
   391.9954    G4     67
   415.3047    G#4    68
   440.0000    A4     69
   466.1638    A#4    70
   493.8833    B4     71
   523.2511    C5     72
   554.3653    C#5    73
   587.3295    D5     74
   622.2540    D#5    75
   659.2551    E5     76
   698.4565    F5     77
   739.9888    F#5    78
   783.9909    G5     79
   830.6094    G#5    80
   880.0000    A5     81
   932.3275    A#5    82
   987.7666    B5     83
  1046.5023    C6     84
  1108.7305    C#6    85
  1174.6591    D6     86
  1244.5079    D#6    87
  1318.5102    E6     88
  1396.9129    F6     89
  1479.9777    F#6    90
  1567.9817    G6     91
  1661.2188    G#6    92
  1760.0000    A6     93
  1864.6550    A#6    94
  1975.5332    B6     95
  2093.0045    C7     96
  2217.4610    C#7    97
  2349.3181    D7     98
  2489.0159    D#7    99
  2637.0205    E7    100
  2793.8259    F7    101
  2959.9554    F#7   102
  3135.9635    G7    103
  3322.4376    G#7   104
  3520.0000    A7    105
  3729.3101    A#7   106
  3951.0664    B7    107
  4186.0090    C8    108
"""

try:
    # Python2
    import Tkinter as tk
except ImportError:
    # Python3
    import tkinter as tk

from tkSnack import *

root = tk.Tk()

initializeSnack(root)
"""AudioControllerSingleton().playLatency(100)"""

s = Sound()

filt = Filter('generator', 440.0)
        
def play():
   s.stop()
   s.play(filter=filt)
        
def stop():
   s.stop()        

def config(arg):
   type = var.get()
   if var.get() == "sine" :
      shape = 0.0
   elif var.get() == "rectangle" :
      shape = 0.5
   elif var.get() == "triangle" :
      shape = 0.5
   elif var.get() == "sawtooth" :
      type = "triangle"
      shape = 0.0
   else :
      shape = 0.0
   filt.configure(s1.get(), s2.get(), shape, type, -1)

f = tk.Frame(root)
f.pack()

s1 = tk.Scale(f, from_=4000, to=50, label="Frequency", length=200, command=config)
s1.pack(side='left')

s2 = tk.Scale(f, from_=32767, to=0, label="Amplitude", length=200, command=config)
s2.pack(side='left')

s1.set(440.0)
s2.set(20000)

var  = tk.StringVar()
var.set("sine")

menu = tk.OptionMenu(root, var, "sine", "rectangle", "triangle", "sawtooth", "noise")
menu.pack()
root.bind_all("<Button1-ButtonRelease>", config)

fb = tk.Frame(root)
fb.pack(side='bottom')
tk.Button(fb, bitmap='snackPlay', command=play).pack(side='left')
tk.Button(fb, bitmap='snackStop', command=stop).pack(side='left')

root.mainloop()
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