def main():
stddraw.createWindow(1024, 256)
#stddraw.setCanvasSize(1024, 256)
stddraw.setXscale(0, _SAMPLES_PER_REDRAW)
stddraw.setYscale(-.75, +.75)
stddraw.show(0)
# Create keyboardDict, a dictionary relating each keyboard key
# to a guitar string.
keyboardDict = {}
i = 0
for key in _KEYBOARD:
factor = 2 ** ((i-24) / 12.0)
guitarString = guitarstring.GuitarString(_CONCERT_A * factor)
keyboardDict[key] = guitarString
i += 1
# pluckedGuitarStrings is the set of all guitar strings that have
# been plucked.
pluckedGuitarStrings = set()
#stddraw.show(0)
t = 0
# The main input loop.
while True:
if stddraw.hasNextKeyTyped():
# Fetch the key that the user just typed.
key = stddraw.nextKeyTyped()
# Figure out which guitar string to pluck, and pluck it.
try:
guitarString = keyboardDict[key]
guitarString.pluck()
pluckedGuitarStrings.add(guitarString)
except KeyError:
pass
# Add up the samples from each plucked guitar string. Also
# advance the simulation of each plucked guitar string by
# one step.
sample = 0.0
for guitarString in pluckedGuitarStrings:
sample += guitarString.sample()
guitarString.tic()
# Play the total.
stdaudio.playSample(sample)
# Plot
stddraw.point(t % _SAMPLES_PER_REDRAW, sample);
if (t % _SAMPLES_PER_REDRAW) == (_SAMPLES_PER_REDRAW - 1):
stddraw.show(0);
stddraw.clear();
t += 1
def main():
stddraw.createWindow()
# Create keyboardDict, a dictionary relating each keyboard key
# to a guitar string.
keyboardDict = {}
i = 0
for key in _KEYBOARD:
factor = 2**((i - 24) / 12.0)
guitarString = guitarstring.GuitarString(_CONCERT_A * factor)
keyboardDict[key] = guitarString
i += 1
# pluckedGuitarStrings is the set of all guitar strings that have
# been plucked.
pluckedGuitarStrings = set()
# loopCount is used to control the frequency of calls of
# stddraw.show().
loopCount = 1023
# The main input loop.
while True:
# Call stddraw.show() occasionally to capture keyboard events.
if loopCount == 1023:
stddraw.show()
loopCount = 0
loopCount += 1
if stddraw.hasNextKeyTyped():
# Fetch the key that the user just typed.
key = stddraw.nextKeyTyped()
# Figure out which guitar string to pluck, and pluck it.
try:
guitarString = keyboardDict[key]
guitarString.pluck()
pluckedGuitarStrings.add(guitarString)
except KeyError:
pass
# Add up the samples from each plucked guitar string. Also
# advance the simulation of each plucked guitar string by
# one step.
sample = 0.0
for guitarString in pluckedGuitarStrings:
sample += guitarString.sample()
guitarString.tic()
# Play the total.
stdaudio.playSample(sample)
def main():
# Create keyboardDict, a dictionary relating each keyboard key
# to a guitar string.
keyboardDict = {}
i = 0
for key in _KEYBOARD:
factor = 2 ** ((i-24) / 12.0)
guitarString = guitarstring.GuitarString(_CONCERT_A * factor)
keyboardDict[key] = guitarString
i += 1
# pluckedGuitarStrings is the set of all guitar strings that have
# been plucked.
pluckedGuitarStrings = set()
# loopCount is used to control the frequency of calls of
# stddraw.show().
loopCount = 1023
# The main input loop.
while True:
# Call stddraw.show() occasionally to capture keyboard events.
if loopCount == 1023:
stddraw.show()
loopCount = 0
loopCount += 1
if stddraw.hasNextKeyTyped():
# Fetch the key that the user just typed.
key = stddraw.nextKeyTyped()
# Figure out which guitar string to pluck, and pluck it.
try:
guitarString = keyboardDict[key]
guitarString.pluck()
pluckedGuitarStrings.add(guitarString)
except KeyError:
pass
# Add up the samples from each plucked guitar string. Also
# advance the simulation of each plucked guitar string by
# one step.
sample = 0.0
for guitarString in pluckedGuitarStrings:
sample += guitarString.sample()
guitarString.tic()
# Play the total.
stdaudio.playSample(sample)
def main():
# Refresh rate (in seconds) for the keyboard.
KEYBOARD_REFRESH_DELAY = 0.01
# Specifies superposition window size.
SUPERPOSITION_RANGE = 2
# Setup the canvas and scale for the keyboard.
stddraw.setCanvasSize(1056, 300)
stddraw.setXscale(0, 1056)
stddraw.setYscale(0, 300)
# Create guitar strings for notes corresponding to the keys in keyboard.
keyboard = 'q2we4r5ty7u8i9op-[=zxdcfvgbnjmk,.;/\' '
notes = []
for i in range(len(keyboard)):
hz = 440 * 2**((i - 24.0) / 12.0)
notes += [guitar_string.create(hz)]
pressed = -1 # index of the pressed key
start = time.clock() # for refreshing the keyboard
while True:
# Check if the user has typed a key; if so, process it, ie, pluck
# the corresponding string.
if stddraw.hasNextKeyTyped():
key = stddraw.nextKeyTyped()
if key in keyboard:
pressed = index(keyboard, key)
guitar_string.pluck(notes[pressed])
if pressed != -1:
# Superimpose samples for keys that are within the
# 2 * SUPERPOSITION_RANGE window centered at the pressed key.
sample = 0.0
b = max(0, pressed - SUPERPOSITION_RANGE)
e = min(len(keyboard) - 1, pressed + SUPERPOSITION_RANGE)
for i in range(b, e + 1):
note = notes[i]
sample += guitar_string.sample(note)
guitar_string.tic(note)
# Play the sample on standard audio.
stdaudio.playSample(sample)
# Display the keyboard with the pressed key in red, every
# KEYBOARD_REFRESH_DELAY seconds.
if time.clock() - start > KEYBOARD_REFRESH_DELAY:
start = time.clock()
draw_keyboard(pressed)
stddraw.show(0.0)
def main2():
import stddraw
import stdaudio
#stddraw.setXscale(0, 1024)
#stddraw.setYscale(-1, +1)
#stddraw.show(0)
# Play middle A for 3 seconds.
a = GuitarString(440.0)
a.pluck()
seconds = 3
for i in range(_SAMPLE_RATE * seconds):
a.tic()
stdaudio.playSample(a.sample())
def main2():
import stddraw
import stdaudio
#stddraw.setXscale(0, 1024)
#stddraw.setYscale(-1, +1)
#stddraw.show(0)
# Play middle A for 3 seconds.
a = GuitarString(440.0)
a.pluck()
seconds = 3
for i in range(_SAMPLE_RATE * seconds):
a.tic()
stdaudio.playSample(a.sample())
def multiplier(key, notes):
for index, num in enumerate(notes):
if num == key:
return index
def frequency(num):
freq = 110.00 * 2**(num / 12)
return freq
play = GuitarString(110.00)
p = Picture('piano.png')
stddraw.picture(p)
stddraw.show(0.0)
escape = False
while not escape:
stddraw._checkForEvents()
while stddraw.hasNextKeyTyped():
key = stddraw.nextKeyTyped()
if key == chr(27):
escape = True
freq = frequency(multiplier(key, notes))
play = GuitarString(freq)
play.pluck()
y = play.tick()
stdaudio.playSample(y)