#!/usr/bin/env python
# -*- coding: utf-8 -*-
import unittest
import array
import sys
from math import sin, pi
import ssc
from ssc.aux import max_int, min_int, WIDTH_TYPE
MAX_8 = max_int(1)
MAX_16 = max_int(2)
MAX_32 = max_int(4)
MIN_8 = max_int(1)
MIN_16 = min_int(2)
MIN_32 = min_int(4)
# Defines Sample frecuency/bitrate and test_data subsections
TEST_FS = 44100
TEST_T = 0.5
'''
# test_t seconds of 440 hz sinouidal sound at 0.9 amplitude
freq = 440.0 * 2 * pi / TEST_FS
for i in range(samples):
f = 0.9 * sin(freq * i)
raw8.append(int(MAX_8 * f))
raw16.append(int(MAX_16 * f))
raw32.append(int(MAX_32 * f))
import array
import sys
import time
import os.path
import wave
import audioop
from intelhex import IntelHex
CHUNK = 1024 # How many samples send to player
COLUMN = 8 # Prety print of values
PAD_FILL = b'\x00' # Padding fill of 32 byte blocks
BITS = 2
MAX = max_int(BITS)
# Try to grab pyaudio
try:
import pyaudio
_AUDIO = True
except ImportError:
_AUDIO = False
class SoundsLib(object):
""" Creates a sound lib of BTc encode sounds """
def __init__(self, bitrate =22000, soft=21, delta=MAX//21 , codec='BTc1.0'):
"""
Initiate a BTc SoundLib
