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@@ -126,12 +126,90 @@
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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- "source": []
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+ "source": [
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+ "def test():\n",
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+ " import sounddevice as sd\n",
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+ " tone1 = get_pure_tone(440, 0.05, 44100) * 0.5\n",
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+ "\n",
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+ " sd.default.samplerate = 44100\n",
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+ " stream = sd.OutputStream(samplerate=44100, channels=2, dtype='float32')\n",
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+ " stream.start()\n",
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+ "\n",
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+ " for i in range(5):\n",
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+ " stream.write(np.column_stack((tone1, tone1)))\n",
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+ " time.sleep(0.2)\n",
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+ " stream.stop()"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": null,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "selector = Value('f', 0)\n",
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+ "is_running = Value(c_bool, True)\n",
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+ "#sc = ProcessWithLogAndControls(target=sound_controller, args=(selector, is_running), name=\"sounds\")\n",
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+ "sc = ProcessWithLogAndControls(target=test, args=(), name=\"sounds\")\n",
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+ "sc.control_panel()"
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+ ]
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+ },
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+ {
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+ "cell_type": "code",
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+ "execution_count": null,
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+ "metadata": {},
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+ "outputs": [],
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+ "source": [
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+ "def get_pure_tone(freq, duration, sample_rate=44100):\n",
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+ " x = np.linspace(0, duration * freq * 2*np.pi, int(duration*sample_rate), dtype=np.float32)\n",
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+ " return np.sin(x)\n",
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+ "\n",
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+ "def sound_controller(selector, is_running, latency=0.25):\n",
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+ " \"\"\"\n",
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+ " selector mp.Value object to set the sound to be played\n",
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+ " is_running mp.Value object to stop the loop\n",
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+ " \"\"\"\n",
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+ " print('Loading SC..')\n",
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+ " \n",
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+ " tone1 = get_pure_tone(440, 0.05, 44100) * 0.5\n",
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+ " tone2 = get_pure_tone(880, 0.05, 44100) * 0.5\n",
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+ " silence = np.zeros(len(tone1), dtype='float32') \n",
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+ "\n",
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+ " sounds = {\n",
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+ " 0: np.column_stack((silence, silence)),\n",
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+ " 1: np.column_stack((tone1, tone1)),\n",
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+ " 2: np.column_stack((tone2, tone2))\n",
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+ " }\n",
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+ "\n",
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+ " stream = sd.OutputStream(samplerate=44100, channels=2, dtype='float32')\n",
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+ " stream.start()\n",
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+ " \n",
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+ " print('Creating sounds..')\n",
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+ " \n",
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+ " next_beat = time.time() + latency\n",
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+ " beat_times = collections.deque(maxlen=10000)\n",
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+ "\n",
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+ " \n",
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+ " while is_running.value:\n",
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+ " print('Running loop..')\n",
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+ " \n",
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+ " t0 = time.time()\n",
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+ " if t0 < next_beat:\n",
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+ " continue\n",
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+ "\n",
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+ " beat_times.append(t0)\n",
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+ " #sd.play(self.tone) # has underrun errors, maybe try blocking?\n",
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+ " stream.write(sounds[int(selector.value)])\n",
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+ " next_beat += latency\n",
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+ " \n",
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+ " stream.stop()\n",
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+ " print('Sound controller stopped')"
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+ ]
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}
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],
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"metadata": {
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"kernelspec": {
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- "display_name": "Python 3",
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+ "display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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@@ -145,7 +223,7 @@
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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- "version": "3.8.10"
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+ "version": "3.8.5"
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}
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},
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"nbformat": 4,
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asobolev