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kivy_venv/share/kivy-examples/audio/audio.kv

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+#:kivy 1.0
+#:import kivy kivy
+
+<AudioBackground>:
+    orientation: 'vertical'
+    canvas:
+        Color:
+            rgb: 1, 1, 1
+        Rectangle:
+            source: 'data/images/background.jpg'
+            size: self.size
+
+    BoxLayout:
+        padding: 10
+        spacing: 10
+        size_hint: 1, None
+        pos_hint: {'top': 1}
+        height: 44
+        Image:
+            size_hint: None, None
+            size: 24, 24
+            source: 'data/logo/kivy-icon-24.png'
+        Label:
+            height: 24
+            text_size: self.size
+            color: (1, 1, 1, .8)
+            text: 'Kivy %s - Audio sample' % kivy.__version__
+            valign: 'middle'
+
+    Label:
+        text: 'Audio example'
+        font_size: 32
+        size_hint_y: None
+
+    BoxLayout:
+        Slider:
+            min: 0.0
+            max: 1.0
+            value: 1.0
+            on_value: app.set_volume(self.value)
+            orientation: "vertical"
+            size_hint_x: None
+            width: "48dp"
+
+        StackLayout:
+            id: sl
+
+    Button:
+        text: 'Stop and release all audio'
+        size_hint_y: None
+        height: '50sp'
+        on_press: app.release_audio()
+
+<AudioButton>:
+    size_hint: None,0.333
+    width: self.height
+    text_size: self.size
+    font_size: '12sp'
+    valign: 'middle'

kivy_venv/share/kivy-examples/audio/main.py

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+'''
+Audio example
+=============
+
+This example plays sounds of different formats. You should see a grid of
+buttons labelled with filenames. Clicking on the buttons will play, or
+restart, each sound. Not all sound formats will play on all platforms.
+
+All the sounds are from the http://woolyss.com/chipmusic-samples.php
+"THE FREESOUND PROJECT", Under Creative Commons Sampling Plus 1.0 License.
+
+'''
+
+import kivy
+kivy.require('1.0.8')
+
+from kivy.app import App
+from kivy.uix.button import Button
+from kivy.uix.boxlayout import BoxLayout
+from kivy.core.audio import SoundLoader
+from kivy.properties import StringProperty, ObjectProperty, NumericProperty
+from glob import glob
+from os.path import dirname, join, basename
+
+
+class AudioButton(Button):
+
+    filename = StringProperty(None)
+    sound = ObjectProperty(None, allownone=True)
+    volume = NumericProperty(1.0)
+
+    def on_press(self):
+        if self.sound is None:
+            self.sound = SoundLoader.load(self.filename)
+        # stop the sound if it's currently playing
+        if self.sound.state != 'stop':
+            self.sound.stop()
+        self.sound.volume = self.volume
+        self.sound.play()
+
+    def release_audio(self):
+        if self.sound:
+            self.sound.stop()
+            self.sound.unload()
+            self.sound = None
+
+    def set_volume(self, volume):
+        self.volume = volume
+        if self.sound:
+            self.sound.volume = volume
+
+
+class AudioBackground(BoxLayout):
+    pass
+
+
+class AudioApp(App):
+
+    def build(self):
+
+        root = AudioBackground(spacing=5)
+        for fn in glob(join(dirname(__file__), '*.wav')):
+            btn = AudioButton(
+                text=basename(fn[:-4]).replace('_', ' '), filename=fn,
+                size_hint=(None, None), halign='center',
+                size=(128, 128), text_size=(118, None))
+            root.ids.sl.add_widget(btn)
+
+        return root
+
+    def release_audio(self):
+        for audiobutton in self.root.ids.sl.children:
+            audiobutton.release_audio()
+
+    def set_volume(self, value):
+        for audiobutton in self.root.ids.sl.children:
+            audiobutton.set_volume(value)
+
+
+if __name__ == '__main__':
+    AudioApp().run()

kivy_venv/share/kivy-examples/audio/pitch.py

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+# encoding: utf8
+
+from kivy.app import App
+from kivy.core.audio import SoundLoader
+from kivy.uix.boxlayout import BoxLayout
+from kivy.uix.button import Button
+
+from sys import version_info
+
+
+NOTES = (
+    ('Do', 1),
+    ('Ré', 9 / 8.),
+    ('Mi', 5 / 4.),
+    ('Fa', 4 / 3.),
+    ('Sol', 3 / 2.),
+    ('La', 5 / 3.),
+    ('Si', 15 / 8.),
+)
+
+
+class Test(App):
+    def build(self):
+        self.sound = SoundLoader.load(
+            '/usr/lib64/python{}.{}/test/audiodata/pluck-pcm32.wav'
+            .format(*version_info[0:2])
+        )
+        root = BoxLayout()
+        for octave in range(-2, 3):
+            for note, pitch in NOTES:
+                button = Button(text=note)
+                button.pitch = pitch * 2 ** octave
+                button.bind(on_release=self.play_note)
+                root.add_widget(button)
+        return root
+
+    def play_note(self, button):
+        self.sound.pitch = button.pitch
+        self.sound.play()
+
+
+Test().run()