Voice Reporting Drone Swarm- Aaron Kalvani ai@oxon.org

colormap = np.array([ [0, 127, 70], [255, 0, 0], [255, 217, 38], [0, 135, 255], [165, 0, 165], [255, 167, 255], [97, 142, 151], [0, 255, 255], [255, 96, 38], [142, 76, 0], [33, 0, 127], [0, 0, 0], [183, 183, 183], [76, 255, 0], ], dtype=np.float) / 255 class UI(QDialog): min_umap_points = 4 max_log_lines = 5 max_saved_utterances = 20 def draw_utterance(self, utterance: Utterance, which): self.draw_spec(utterance.spec, which) self.draw_embed(utterance.embed, utterance.name, which) def draw_embed(self, embed, name, which): embed_ax, _ = self.current_ax if which == "current" else self.gen_ax embed_ax.figure.suptitle("" if embed is None else name) ## Embedding # Clear the plot if len(embed_ax.images) > 0: embed_ax.images[0].colorbar.remove() embed_ax.clear() # Draw the embed if embed is not None: plot_embedding_as_heatmap(embed, embed_ax) embed_ax.set_title("embedding") embed_ax.set_aspect("equal", "datalim") embed_ax.set_xticks([]) embed_ax.set_yticks([]) embed_ax.figure.canvas.draw()

def draw_spec(self, spec, which):
    _, spec_ax = self.current_ax if which == "current" else self.gen_ax

    ## Spectrogram
    # Draw the spectrogram
    spec_ax.clear()
    if spec is not None:
        im = spec_ax.imshow(spec, aspect="auto", interpolation="none")
        # spec_ax.figure.colorbar(mappable=im, shrink=0.65, orientation="horizontal", 
        # spec_ax=spec_ax)
        spec_ax.set_title("mel spectrogram")

    spec_ax.set_xticks([])
    spec_ax.set_yticks([])
    spec_ax.figure.canvas.draw()
    if which != "current":
        self.vocode_button.setDisabled(spec is None)

def draw_umap_projections(self, utterances: Set[Utterance]):
    self.umap_ax.clear()

    speakers = np.unique([u.speaker_name for u in utterances])
    colors = {speaker_name: colormap[i] for i, speaker_name in enumerate(speakers)}
    embeds = [u.embed for u in utterances]

    # Display a message if there aren't enough points
    if len(utterances) < self.min_umap_points:
        self.umap_ax.text(.5, .5, "Add %d more points to\ngenerate the projections" % 
                          (self.min_umap_points - len(utterances)), 
                          horizontalalignment='center', fontsize=15)
        self.umap_ax.set_title("")
        
    # Compute the projections
    else:
        if not self.umap_hot:
            self.log(
                "Drawing UMAP projections for the first time, this will take a few seconds.")
            self.umap_hot = True
        
        reducer = umap.UMAP(int(np.ceil(np.sqrt(len(embeds)))), metric="cosine")
        # reducer = TSNE()
        projections = reducer.fit_transform(embeds)
        
        speakers_done = set()
        for projection, utterance in zip(projections, utterances):
            color = colors[utterance.speaker_name]
            mark = "x" if "_gen_" in utterance.name else "o"
            label = None if utterance.speaker_name in speakers_done else utterance.speaker_name
            speakers_done.add(utterance.speaker_name)
            self.umap_ax.scatter(projection[0], projection[1], c=[color], marker=mark,
                                 label=label)
        # self.umap_ax.set_title("UMAP projections")
        self.umap_ax.legend(prop={'size': 10})

    # Draw the plot
    self.umap_ax.set_aspect("equal", "datalim")
    self.umap_ax.set_xticks([])
    self.umap_ax.set_yticks([])
    self.umap_ax.figure.canvas.draw()

def save_audio_file(self, wav, sample_rate):        
    dialog = QFileDialog()
    dialog.setDefaultSuffix(".wav")
    fpath, _ = dialog.getSaveFileName(
        parent=self,
        caption="Select a path to save the audio file",
        filter="Audio Files (*.flac *.wav)"
    )
    if fpath:
        #Default format is wav
        if Path(fpath).suffix == "":
            fpath += ".wav"
        sf.write(fpath, wav, sample_rate)

def setup_audio_devices(self, sample_rate):
    input_devices = []
    output_devices = []
    for device in sd.query_devices():
        # Check if valid input
        try:
            sd.check_input_settings(device=device["name"], samplerate=sample_rate)
            input_devices.append(device["name"])
        except:
            pass

        # Check if valid output
        try:
            sd.check_output_settings(device=device["name"], samplerate=sample_rate)
            output_devices.append(device["name"])
        except Exception as e:
            # Log a warning only if the device is not an input
            if not device["name"] in input_devices:
                warn("Unsupported output device %s for the sample rate: %d \nError: %s" % (device["name"], sample_rate, str(e)))

    if len(input_devices) == 0:
        self.log("No audio input device detected. Recording may not work.")
        self.audio_in_device = None
    else:
        self.audio_in_device = input_devices[0]

    if len(output_devices) == 0:
        self.log("No supported output audio devices were found! Audio output may not work.")
        self.audio_out_devices_cb.addItems(["None"])
        self.audio_out_devices_cb.setDisabled(True)
    else:
        self.audio_out_devices_cb.clear()
        self.audio_out_devices_cb.addItems(output_devices)
        self.audio_out_devices_cb.currentTextChanged.connect(self.set_audio_device)

    self.set_audio_device()

def set_audio_device(self):
    
    output_device = self.audio_out_devices_cb.currentText()
    if output_device == "None":
        output_device = None

    # If None, sounddevice queries portaudio
    sd.default.device = (self.audio_in_device, output_device)

def play(self, wav, sample_rate):
    try:
        sd.stop()
        sd.play(wav, sample_rate)
    except Exception as e:
        print(e)
        self.log("Error in audio playback. Try selecting a different audio output device.")
        self.log("Your device must be connected before you start the toolbox.")
    
def stop(self):
    sd.stop()

def record_one(self, sample_rate, duration):
    self.record_button.setText("Recording...")
    self.record_button.setDisabled(True)
    
    self.log("Recording %d seconds of audio" % duration)
    sd.stop()
    try:
        wav = sd.rec(duration * sample_rate, sample_rate, 1)
    except Exception as e:
        print(e)
        self.log("Could not record anything. Is your recording device enabled?")
        self.log("Your device must be connected before you start the toolbox.")
        return None
    
    for i in np.arange(0, duration, 0.1):
        self.set_loading(i, duration)
        sleep(0.1)
    self.set_loading(duration, duration)
    sd.wait()
    
    self.log("Done recording.")
    self.record_button.setText("Record")
    self.record_button.setDisabled(False)
    
    return wav.squeeze()

@property        
def current_dataset_name(self):
    return self.dataset_box.currentText()

@property
def current_speaker_name(self):
    return self.speaker_box.currentText()

@property
def current_utterance_name(self):
    return self.utterance_box.currentText()

def browse_file(self):
    fpath = QFileDialog().getOpenFileName(
        parent=self,
        caption="Select an audio file",
        filter="Audio Files (*.mp3 *.flac *.wav *.m4a)"
    )
    return Path(fpath[0]) if fpath[0] != "" else ""

@staticmethod
def repopulate_box(box, items, random=False):
    """
    Resets a box and adds a list of items. Pass a list of (item, data) pairs instead to join 
    data to the items
    """
    box.blockSignals(True)
    box.clear()
    for item in items:
        item = list(item) if isinstance(item, tuple) else [item]
        box.addItem(str(item[0]), *item[1:])
    if len(items) > 0:
        box.setCurrentIndex(np.random.randint(len(items)) if random else 0)
    box.setDisabled(len(items) == 0)
    box.blockSignals(False)

def populate_browser(self, datasets_root: Path, recognized_datasets: List, level: int,
                     random=True):
    # Select a random dataset
    if level <= 0:
        if datasets_root is not None:
            datasets = [datasets_root.joinpath(d) for d in recognized_datasets]
            datasets = [d.relative_to(datasets_root) for d in datasets if d.exists()]
            self.browser_load_button.setDisabled(len(datasets) == 0)
        if datasets_root is None or len(datasets) == 0:
            msg = "Warning: you d" + ("id not pass a root directory for datasets as argument" \
                if datasets_root is None else "o not have any of the recognized datasets" \
                                              " in %s" % datasets_root) 
            self.log(msg)
            msg += ".\nThe recognized datasets are:\n\t%s\nFeel free to add your own. You " \
                   "can still use the toolbox by recording samples yourself." % \
                   ("\n\t".join(recognized_datasets))
            print(msg, file=sys.stderr)
            
            self.random_utterance_button.setDisabled(True)
            self.random_speaker_button.setDisabled(True)
            self.random_dataset_button.setDisabled(True)
            self.utterance_box.setDisabled(True)
            self.speaker_box.setDisabled(True)
            self.dataset_box.setDisabled(True)
            self.browser_load_button.setDisabled(True)
            self.auto_next_checkbox.setDisabled(True)
            return 
        self.repopulate_box(self.dataset_box, datasets, random)

    # Select a random speaker
    if level <= 1:
        speakers_root = datasets_root.joinpath(self.current_dataset_name)
        speaker_names = [d.stem for d in speakers_root.glob("*") if d.is_dir()]
        self.repopulate_box(self.speaker_box, speaker_names, random)

    # Select a random utterance
    if level <= 2:
        utterances_root = datasets_root.joinpath(
            self.current_dataset_name, 
            self.current_speaker_name
        )
        utterances = []
        for extension in ['mp3', 'flac', 'wav', 'm4a']:
            utterances.extend(Path(utterances_root).glob("**/*.%s" % extension))
        utterances = [fpath.relative_to(utterances_root) for fpath in utterances]
        self.repopulate_box(self.utterance_box, utterances, random)
        
def browser_select_next(self):
    index = (self.utterance_box.currentIndex() + 1) % len(self.utterance_box)
    self.utterance_box.setCurrentIndex(index)

@property
def current_encoder_fpath(self):
    return self.encoder_box.itemData(self.encoder_box.currentIndex())

@property
def current_synthesizer_fpath(self):
    return self.synthesizer_box.itemData(self.synthesizer_box.currentIndex())

@property
def current_vocoder_fpath(self):
    return self.vocoder_box.itemData(self.vocoder_box.currentIndex())

def populate_models(self, encoder_models_dir: Path, synthesizer_models_dir: Path, 
                    vocoder_models_dir: Path):
    # Encoder
    encoder_fpaths = list(encoder_models_dir.glob("*.pt"))
    if len(encoder_fpaths) == 0:
        raise Exception("No encoder models found in %s" % encoder_models_dir)
    self.repopulate_box(self.encoder_box, [(f.stem, f) for f in encoder_fpaths])
    
    # Synthesizer
    synthesizer_fpaths = list(synthesizer_models_dir.glob("**/*.pt"))
    if len(synthesizer_fpaths) == 0:
        raise Exception("No synthesizer models found in %s" % synthesizer_models_dir)
    self.repopulate_box(self.synthesizer_box, [(f.stem, f) for f in synthesizer_fpaths])

    # Vocoder
    vocoder_fpaths = list(vocoder_models_dir.glob("**/*.pt"))
    vocoder_items = [(f.stem, f) for f in vocoder_fpaths] + [("Griffin-Lim", None)]
    self.repopulate_box(self.vocoder_box, vocoder_items)
    
@property
def selected_utterance(self):
    return self.utterance_history.itemData(self.utterance_history.currentIndex())
    
def register_utterance(self, utterance: Utterance):
    self.utterance_history.blockSignals(True)
    self.utterance_history.insertItem(0, utterance.name, utterance)
    self.utterance_history.setCurrentIndex(0)
    self.utterance_history.blockSignals(False)
    
    if len(self.utterance_history) > self.max_saved_utterances:
        self.utterance_history.removeItem(self.max_saved_utterances)

    self.play_button.setDisabled(False)
    self.generate_button.setDisabled(False)
    self.synthesize_button.setDisabled(False)

def log(self, line, mode="newline"):
    if mode == "newline":
        self.logs.append(line)
        if len(self.logs) > self.max_log_lines:
            del self.logs[0]
    elif mode == "append":
        self.logs[-1] += line
    elif mode == "overwrite":
        self.logs[-1] = line
    log_text = '\n'.join(self.logs)
    
    self.log_window.setText(log_text)
    self.app.processEvents()

def set_loading(self, value, maximum=1):
    self.loading_bar.setValue(value * 100)
    self.loading_bar.setMaximum(maximum * 100)
    self.loading_bar.setTextVisible(value != 0)
    self.app.processEvents()

def populate_gen_options(self, seed, trim_silences):
    if seed is not None:
        self.random_seed_checkbox.setChecked(True)
        self.seed_textbox.setText(str(seed))
        self.seed_textbox.setEnabled(True)
    else:
        self.random_seed_checkbox.setChecked(False)
        self.seed_textbox.setText(str(0))
        self.seed_textbox.setEnabled(False)

    if not trim_silences:
        self.trim_silences_checkbox.setChecked(False)
        self.trim_silences_checkbox.setDisabled(True)

def update_seed_textbox(self):
    if self.random_seed_checkbox.isChecked():
        self.seed_textbox.setEnabled(True)
    else:
        self.seed_textbox.setEnabled(False)

def reset_interface(self):
    self.draw_embed(None, None, "current")
    self.draw_embed(None, None, "generated")
    self.draw_spec(None, "current")
    self.draw_spec(None, "generated")
    self.draw_umap_projections(set())
    self.set_loading(0)
    self.play_button.setDisabled(True)
    self.generate_button.setDisabled(True)
    self.synthesize_button.setDisabled(True)
    self.vocode_button.setDisabled(True)
    self.replay_wav_button.setDisabled(True)
    self.export_wav_button.setDisabled(True)
    [self.log("") for _ in range(self.max_log_lines)]

def __init__(self):
    ## Initialize the application
    self.app = QApplication(sys.argv)
    super().__init__(None)
    self.setWindowTitle("SV2TTS toolbox")
    
    
    ## Main layouts
    # Root
    root_layout = QGridLayout()
    self.setLayout(root_layout)
    
    # Browser
    browser_layout = QGridLayout()
    root_layout.addLayout(browser_layout, 0, 0, 1, 2)
    
    # Generation
    gen_layout = QVBoxLayout()
    root_layout.addLayout(gen_layout, 0, 2, 1, 2)
    
    # Projections
    self.projections_layout = QVBoxLayout()
    root_layout.addLayout(self.projections_layout, 1, 0, 1, 1)
    
    # Visualizations
    vis_layout = QVBoxLayout()
    root_layout.addLayout(vis_layout, 1, 1, 1, 3)


    ## Projections
    # UMap
    fig, self.umap_ax = plt.subplots(figsize=(3, 3), facecolor="#F0F0F0")
    fig.subplots_adjust(left=0.02, bottom=0.02, right=0.98, top=0.98)
    self.projections_layout.addWidget(FigureCanvas(fig))
    self.umap_hot = False
    self.clear_button = QPushButton("Clear")
    self.projections_layout.addWidget(self.clear_button)


    ## Browser
    # Dataset, speaker and utterance selection
    i = 0
    self.dataset_box = QComboBox()
    browser_layout.addWidget(QLabel("<b>Dataset</b>"), i, 0)
    browser_layout.addWidget(self.dataset_box, i + 1, 0)
    self.speaker_box = QComboBox()
    browser_layout.addWidget(QLabel("<b>Speaker</b>"), i, 1)
    browser_layout.addWidget(self.speaker_box, i + 1, 1)
    self.utterance_box = QComboBox()
    browser_layout.addWidget(QLabel("<b>Utterance</b>"), i, 2)
    browser_layout.addWidget(self.utterance_box, i + 1, 2)
    self.browser_load_button = QPushButton("Load")
    browser_layout.addWidget(self.browser_load_button, i + 1, 3)
    i += 2
    
    # Random buttons
    self.random_dataset_button = QPushButton("Random")
    browser_layout.addWidget(self.random_dataset_button, i, 0)
    self.random_speaker_button = QPushButton("Random")
    browser_layout.addWidget(self.random_speaker_button, i, 1)
    self.random_utterance_button = QPushButton("Random")
    browser_layout.addWidget(self.random_utterance_button, i, 2)
    self.auto_next_checkbox = QCheckBox("Auto select next")
    self.auto_next_checkbox.setChecked(True)
    browser_layout.addWidget(self.auto_next_checkbox, i, 3)
    i += 1
    
    # Utterance box
    browser_layout.addWidget(QLabel("<b>Use embedding from:</b>"), i, 0)
    self.utterance_history = QComboBox()
    browser_layout.addWidget(self.utterance_history, i, 1, 1, 3)
    i += 1
    
    # Random & next utterance buttons
    self.browser_browse_button = QPushButton("Browse")
    browser_layout.addWidget(self.browser_browse_button, i, 0)
    self.record_button = QPushButton("Record")
    browser_layout.addWidget(self.record_button, i, 1)
    self.play_button = QPushButton("Play")
    browser_layout.addWidget(self.play_button, i, 2)
    self.stop_button = QPushButton("Stop")
    browser_layout.addWidget(self.stop_button, i, 3)
    i += 1


    # Model and audio output selection
    self.encoder_box = QComboBox()
    browser_layout.addWidget(QLabel("<b>Encoder</b>"), i, 0)
    browser_layout.addWidget(self.encoder_box, i + 1, 0)
    self.synthesizer_box = QComboBox()
    browser_layout.addWidget(QLabel("<b>Synthesizer</b>"), i, 1)
    browser_layout.addWidget(self.synthesizer_box, i + 1, 1)
    self.vocoder_box = QComboBox()
    browser_layout.addWidget(QLabel("<b>Vocoder</b>"), i, 2)
    browser_layout.addWidget(self.vocoder_box, i + 1, 2)
    
    self.audio_out_devices_cb=QComboBox()
    browser_layout.addWidget(QLabel("<b>Audio Output</b>"), i, 3)
    browser_layout.addWidget(self.audio_out_devices_cb, i + 1, 3)
    i += 2

    #Replay & Save Audio
    browser_layout.addWidget(QLabel("<b>Toolbox Output:</b>"), i, 0)
    self.waves_cb = QComboBox()
    self.waves_cb_model = QStringListModel()
    self.waves_cb.setModel(self.waves_cb_model)
    self.waves_cb.setToolTip("Select one of the last generated waves in this section for replaying or exporting")
    browser_layout.addWidget(self.waves_cb, i, 1)
    self.replay_wav_button = QPushButton("Replay")
    self.replay_wav_button.setToolTip("Replay last generated vocoder")
    browser_layout.addWidget(self.replay_wav_button, i, 2)
    self.export_wav_button = QPushButton("Export")
    self.export_wav_button.setToolTip("Save last generated vocoder audio in filesystem as a wav file")
    browser_layout.addWidget(self.export_wav_button, i, 3)
    i += 1


    ## Embed & spectrograms
    vis_layout.addStretch()

    gridspec_kw = {"width_ratios": [1, 4]}
    fig, self.current_ax = plt.subplots(1, 2, figsize=(10, 2.25), facecolor="#F0F0F0", 
                                        gridspec_kw=gridspec_kw)
    fig.subplots_adjust(left=0, bottom=0.1, right=1, top=0.8)
    vis_layout.addWidget(FigureCanvas(fig))

    fig, self.gen_ax = plt.subplots(1, 2, figsize=(10, 2.25), facecolor="#F0F0F0", 
                                    gridspec_kw=gridspec_kw)
    fig.subplots_adjust(left=0, bottom=0.1, right=1, top=0.8)
    vis_layout.addWidget(FigureCanvas(fig))

    for ax in self.current_ax.tolist() + self.gen_ax.tolist():
        ax.set_facecolor("#F0F0F0")
        for side in ["top", "right", "bottom", "left"]:
            ax.spines[side].set_visible(False)
    
    
    ## Generation
    self.text_prompt = QPlainTextEdit(default_text)
    gen_layout.addWidget(self.text_prompt, stretch=1)
    
    self.generate_button = QPushButton("Synthesize and vocode")
    gen_layout.addWidget(self.generate_button)
    
    layout = QHBoxLayout()
    self.synthesize_button = QPushButton("Synthesize only")
    layout.addWidget(self.synthesize_button)
    self.vocode_button = QPushButton("Vocode only")
    layout.addWidget(self.vocode_button)
    gen_layout.addLayout(layout)

    layout_seed = QGridLayout()
    self.random_seed_checkbox = QCheckBox("Random seed:")
    self.random_seed_checkbox.setToolTip("When checked, makes the synthesizer and vocoder deterministic.")
    layout_seed.addWidget(self.random_seed_checkbox, 0, 0)
    self.seed_textbox = QLineEdit()
    self.seed_textbox.setMaximumWidth(80)
    layout_seed.addWidget(self.seed_textbox, 0, 1)
    self.trim_silences_checkbox = QCheckBox("Enhance vocoder output")
    self.trim_silences_checkbox.setToolTip("When checked, trims excess silence in vocoder output."
        " This feature requires `webrtcvad` to be installed.")
    layout_seed.addWidget(self.trim_silences_checkbox, 0, 2, 1, 2)
    gen_layout.addLayout(layout_seed)

    self.loading_bar = QProgressBar()
    gen_layout.addWidget(self.loading_bar)
    
    self.log_window = QLabel()
    self.log_window.setAlignment(Qt.AlignBottom | Qt.AlignLeft)
    gen_layout.addWidget(self.log_window)
    self.logs = []
    gen_layout.addStretch()

    
    ## Set the size of the window and of the elements
    max_size = QDesktopWidget().availableGeometry(self).size() * 0.8
    self.resize(max_size)
    
    ## Finalize the display
    self.reset_interface()
    self.show()

def start(self):
    self.app.exec_()