playrandom sounds based on GPS coordinates!

latlongsound.py

import location
import gobject
import pygame
import sys
from pygame.locals import *
import Numeric
import random

Fs=11025  # sample rate
pygame.mixer.init(Fs, -16, 0)   # mono, 16-bit
pygame.init()
pygame.display.set_mode((800, 480))
sound=[]   # array of Sounds

# sound 0 --------------------
length = Fs * 1.001   # 1.5 seconds
freq = 440.0
amp = 16.0
tmp = []
for t in range(int(length)):
	v= amp * Numeric.sin(t*freq/Fs*2*Numeric.pi) 
	tmp.append(v)

sound.append(pygame.sndarray.make_sound(Numeric.array(tmp,Numeric.Int0)))


# sound 1 --------------------
length = Fs * 1.001   # 1.5 seconds
freq = 440.0 * (5.0/4.0)
amp = 16.0
tmp = []
for t in range(int(length)):
	v= amp * Numeric.sin(t*freq/Fs*2*Numeric.pi) 
	tmp.append(v)

sound.append(pygame.sndarray.make_sound(Numeric.array(tmp,Numeric.Int0)))


# sound 2 --------------------
length = Fs * 1.001   # 1.5 seconds
freq = 440.0 * (4.0/3.0)
amp = 16.0
tmp = []
for t in range(int(length)):
	v= amp * Numeric.sin(t*freq/Fs*2*Numeric.pi) 
	tmp.append(v)

sound.append(pygame.sndarray.make_sound(Numeric.array(tmp,Numeric.Int0)))


# sound 3 --------------------  tremelo
length = Fs * 1.001   # 1.5 seconds
freq = 440.0 * (4.0/3.0)
freq2 = 2.0
amp = 16.0
tmp = []
for t in range(int(length)):
	v = amp * Numeric.sin(t*freq/Fs*2*Numeric.pi) 
	v2 = Numeric.sin(t*freq2/Fs*2*Numeric.pi)
	tmp.append(v*v2)

sound.append(pygame.sndarray.make_sound(Numeric.array(tmp,Numeric.Int0)))

# sound 4 --------------------  vibrato
length = Fs * 1.001   # 1.5 seconds
freq = 440.0 * (4.0/3.0)
freq2 = 2.0
amp = 16.0
tmp = []
for t in range(int(length)):
	v = 1 + 0.1 * Numeric.sin(t*freq2/Fs*2*Numeric.pi)
	v2 = amp * Numeric.sin(t*freq/Fs*2*Numeric.pi * v) 
	tmp.append(v2)

sound.append(pygame.sndarray.make_sound(Numeric.array(tmp,Numeric.Int0)))


# sound 5 --------------------  vibrato
length = Fs * 1.001   # 1.5 seconds
freq = 440.0 * (4.0/3.0)
freq2 = 17.5
amp = 16.0
tmp = []
for t in range(int(length)):
	v = 1 + 0.02 * Numeric.sin(t*freq2/Fs*2*Numeric.pi)
	v2 = amp * Numeric.sin(t*freq/Fs*2*Numeric.pi * v) 
	tmp.append(v2)

sound.append(pygame.sndarray.make_sound(Numeric.array(tmp,Numeric.Int0)))

def on_error(control, error, data):
    print "location error: %d... quitting" % error
    data.quit()

def on_changed(device, data):
    if not device:
        return
    if device.fix:
        if device.fix[1] & location.GPS_DEVICE_LATLONG_SET:
            lat = device.fix[4]
            long = device.fix[5]
            tone = int ((abs(long) * 10000) % 6)
            print "lat = %f, long = %f" % device.fix[4:6]
            print "tone = %d" % tone
            sound[tone].play()
            ##  data.stop()

def on_stop(control, data):
    print "quitting from on_stop()"
    data.quit()

def start_location(data):
    data.start()
    return False

loop = gobject.MainLoop()
control = location.GPSDControl.get_default()
device = location.GPSDevice()
control.set_properties(preferred_method=location.METHOD_USER_SELECTED,
                       preferred_interval=location.INTERVAL_DEFAULT)

control.connect("error-verbose", on_error, loop)
device.connect("changed", on_changed, control)
control.connect("gpsd-stopped", on_stop, loop)

gobject.idle_add(start_location, control)

loop.run()