Web   ·   Wiki   ·   Activities   ·   Blog   ·   Lists   ·   Chat   ·   Meeting   ·   Bugs   ·   Git   ·   Translate   ·   Archive   ·   People   ·   Donate
summaryrefslogtreecommitdiffstats
path: root/pysamples/csound.py
blob: ec1b014ad4efcaa7df7c2b0c90ecbd24a80daa52 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
#Copyright (c) 2011 Walter Bender

# This procedure is invoked when the user-definable block on the
# "extras" palette is selected.

# Usage: Import this code into a Python (user-definable) block and
# pass a sound name Python block. The sound will play.
# Alternatively, pass a pitch, amplitude, and duration, e.g., 440, 5000, 1

# Note: Assumes TamTam suite is installed in ~/Activities


def myblock(tw, sound):
    ''' Plays a sound file '''

    from TurtleArt.tautils import get_path
    import os

    dirs = [os.path.join(
                os.environ['HOME'],
                'Activities/TamTamMini.activity/common/Resources/Sounds/'),
            os.path.join(
                os.environ['HOME'],
                'Activities/TamTamJam.activity/common/Resources/Sounds/'),
            os.path.join(
                os.environ['HOME'],
                'Activities/TamTamEdit.activity/common/Resources/Sounds/')]
    orchlines = []
    scorelines = []
    instrlist = []

    def finddir():
        print dirs
        for d in dirs:
            if os.path.isdir(d):
                return d
        return '.'

    def playSine(pitch=1000, amplitude=5000, duration=1, starttime=0,
                 pitch_envelope='default', amplitude_envelope='default'):
        """ Create a score to play a sine wave. """
        _play(pitch, amplitude, duration, starttime, pitch_envelope,
              amplitude_envelope, 1)

    def _play(pitch, amplitude, duration, starttime, pitch_envelope,
              amplitude_envelope, instrument):
        if pitch_envelope == 'default':
            pitenv = 99
        else:
            pitenv = pitch_envelope

        if amplitude_envelope == 'default':
            ampenv = 100
        else:
            ampenv = amplitude_envelope

        if not 1 in instrlist:
            orchlines.append("instr 1\n")
            orchlines.append("kpitenv oscil 1, 1/p3, p6\n")
            orchlines.append("aenv oscil 1, 1/p3, p7\n")
            orchlines.append("asig oscil p5*aenv, p4*kpitenv, p8\n")
            orchlines.append("out asig\n")
            orchlines.append("endin\n\n")
            instrlist.append(1)

        scorelines.append("i1 %s %s %s %s %s %s %s\n" %
                          (str(starttime), str(duration), str(pitch),
                           str(amplitude), str(pitenv), str(ampenv),
                           str(instrument)))

    def playWave(sound='horse', pitch=1, amplitude=1, loop=False, duration=1,
                 starttime=0, pitch_envelope='default',
                 amplitude_envelope='default'):
        """ Create a score to play a wave file. """

        if '/' in sound:
            fullname = sound
        else:
            fullname = finddir() + str(sound)

        if loop:
            lp = 1
        else:
            lp = 0

        if pitch_envelope == 'default':
            pitenv = 99
        else:
            pitenv = pitch_envelope

        if amplitude_envelope == 'default':
            ampenv = 100
        else:
            ampenv = amplitude_envelope

        if not 9 in instrlist:
            orchlines.append("instr 9\n")
            orchlines.append("kpitenv oscil 1, 1/p3, p8\n")
            orchlines.append("aenv oscil 1, 1/p3, p9\n")
            orchlines.append("asig diskin p4, p5*kpitenv, 0, p7\n")
            orchlines.append("out asig*p6*aenv\n")
            orchlines.append("endin\n\n")
            instrlist.append(9)

        scorelines.append('i9 %f %f "%s" %s %s %s %s %s\n' %
                          (float(starttime), float(duration), fullname,
                           str(pitch), str(amplitude), str(lp), str(pitenv),
                           str(ampenv)))

    def audioWrite(file):
        """ Compile a .csd file. """

        csd = open(file, "w")
        csd.write("<CsoundSynthesizer>\n\n")
        csd.write("<CsOptions>\n")
        csd.write("-+rtaudio=alsa -odevaudio -m0 -d -b256 -B512\n")
        csd.write("</CsOptions>\n\n")
        csd.write("<CsInstruments>\n\n")
        csd.write("sr=16000\n")
        csd.write("ksmps=50\n")
        csd.write("nchnls=1\n\n")
        # csd.write(orchlines.pop())
        for line in orchlines:
            csd.write(line)
        csd.write("\n</CsInstruments>\n\n")
        csd.write("<CsScore>\n\n")
        csd.write("f1 0 2048 10 1\n")
        csd.write("f2 0 2048 10 1 0 .33 0 .2 0 .143 0 .111\n")
        csd.write("f3 0 2048 10 1 .5 .33 .25 .2 .175 .143 .125 .111 .1\n")
        csd.write("f10 0 2048 10 1 0 0 .3 0 .2 0 0 .1\n")
        csd.write("f99 0 2048 7 1 2048 1\n")
        csd.write("f100 0 2048 7 0. 10 1. 1900 1. 132 0.\n")
        csd.write(scorelines.pop())
        csd.write("e\n")
        csd.write("\n</CsScore>\n")
        csd.write("\n</CsoundSynthesizer>")
        csd.close()

    if len(sound) == 1:
        if isinstance(sound[0], float) or isinstance(sound[0], int):
            playSine(pitch=float(sound[0]))
        else:  # Create a score from a prerecorded Wave file.
            playWave(sound[0])
    else:
        if len(sound) == 2:
            playSine(pitch=float(sound[0]), amplitude=float(sound[1]))
        else:
            playSine(pitch=float(sound[0]), amplitude=float(sound[1]),
                     duration=float(sound[2]))
    if tw.running_sugar:
        path = os.path.join(get_path(tw.activity, 'instance'), 'tmp.csd')
    else:
        path = os.path.join('/tmp', 'tmp.csd')
    audioWrite(path)  # Create a csound file from the score.
    os.system('csound ' + path)  # Play the csound file.