def plot_spectrum(self, colors = None):
"""
params:
`colors`: any interable of symbols of color `supported` by matplotlib
"""
if colors is None:
colors = _cycle(["#FF6600", "#0033CC"])
else:
colors = _cycle(colors)
N = len(self.audio_data.data) if self.audio_data.CHANNELS == 1 else len(self.audio_data.data[0])
if self.__cached_fft is None:
self.fft()
coefs = self.__cached_fft
fig, axs = _plt.subplots(len(coefs) + 1, 1, figsize = (20, 7))
zoom_ax = axs[-1]
zoom_ax.set_axis_bgcolor("#E6E6B8")
zoom_ax.title.set_text("Selected Segment")
zoom_line, = zoom_ax.plot([], [], "#008A2E")
for i in range(len(coefs)):
coef = coefs[i]
y = _np.abs(coef[1:N/2])
x = _np.arange(len(y))
color = colors.next()
ax = axs[i]
ax.set_axis_bgcolor("#E6E6B8")
ax.title.set_text("Channel {}".format(i+1))
ax.plot(x, y, color)
def onselect_callback(xmin, xmax):
indmin, indmax = _np.searchsorted(x, (xmin, xmax))
indmax = min(len(y) - 1, indmax)
x_segment = x[indmin:indmax]
y_segment = y[indmin:indmax]
zoom_line.set_data(x_segment, y_segment)
zoom_ax.set_xlim(x_segment[0], x_segment[-1])
zoom_ax.set_ylim(y_segment.min(), y_segment.max())
zoom_ax.title.set_text("Selected Segment: {} to {}".format(indmin, indmax))
_plt.draw()
span_selector = _SpanSelector(ax, onselect_callback, 'horizontal', span_stays = True,
rectprops = dict(alpha = 0.5, facecolor = 'cyan'))
self.__current_widgets["span_selectors"].append(span_selector)
self.__current_figs.append(fig)
fig.subplots_adjust(top = 0.9, hspace = 0.3)
def plot_spectrum(self, colors=None):
"""
params:
`colors`: any interable of symbols of color `supported` by matplotlib
"""
if colors is None:
colors = _cycle(["#FF6600", "#0033CC"])
else:
colors = _cycle(colors)
N = len(
self.audio_data.data) if self.audio_data.CHANNELS == 1 else len(
self.audio_data.data[0])
if self.__cached_fft is None:
self.fft()
coefs = self.__cached_fft
fig, axs = _plt.subplots(len(coefs) + 1, 1, figsize=(20, 7))
zoom_ax = axs[-1]
zoom_ax.set_axis_bgcolor("#E6E6B8")
zoom_ax.title.set_text("Selected Segment")
zoom_line, = zoom_ax.plot([], [], "#008A2E")
for i in range(len(coefs)):
coef = coefs[i]
y = _np.abs(coef[1:N / 2])
x = _np.arange(len(y))
color = colors.next()
ax = axs[i]
ax.set_axis_bgcolor("#E6E6B8")
ax.title.set_text("Channel {}".format(i + 1))
ax.plot(x, y, color)
def onselect_callback(xmin, xmax):
indmin, indmax = _np.searchsorted(x, (xmin, xmax))
indmax = min(len(y) - 1, indmax)
x_segment = x[indmin:indmax]
y_segment = y[indmin:indmax]
zoom_line.set_data(x_segment, y_segment)
zoom_ax.set_xlim(x_segment[0], x_segment[-1])
zoom_ax.set_ylim(y_segment.min(), y_segment.max())
zoom_ax.title.set_text("Selected Segment: {} to {}".format(
indmin, indmax))
_plt.draw()
span_selector = _SpanSelector(ax,
onselect_callback,
'horizontal',
span_stays=True,
rectprops=dict(alpha=0.5,
facecolor='cyan'))
self.__current_widgets["span_selectors"].append(span_selector)
self.__current_figs.append(fig)
fig.subplots_adjust(top=0.9, hspace=0.3)
def plot(self, by_sec = True, colors = None):
"""
Plot the audio data.
params:
`by_sec`: if True, it will plot the audio in second or it will plot
the audio data in the number of frames.
`colors`: Any iterable of symbols of color supported by matplotlib.
"""
if colors is None:
colors = _cycle(["#FF6600", "#0033CC"])
else:
colors = _cycle(colors)
num_subplots = self.audio_data.CHANNELS + 1
fig, axs = _plt.subplots(num_subplots, 1, figsize = (20, 7))
fig.suptitle(repr(self.audio_data), fontsize = 14, y = 1)
frames = [self.audio_data.data[i] for i in range(2)] if self.audio_data.CHANNELS == 2 else [self.audio_data.data]
if by_sec:
x = _np.linspace(0, len(frames[0])/self.audio_data.SAMPLE_RATE, num = len(frames[0]))
x_label = "Time (Seconds)"
else:
x = _np.linspace(0, len(frames[0]), num = len(frames[0]))
x_label = "Frame"
zoom_ax = axs[-1]
zoom_ax.set_axis_bgcolor("#E6E6B8")
zoom_ax.title.set_text("Selected Segment")
zoom_ax.xaxis.set_label_text(x_label)
zoom_ax.yaxis.set_label_text("Altitude")
zoom_line, = zoom_ax.plot([], [], "#008A2E")
temp = []
for i, (ax, frame) in enumerate(zip(axs[:-1], frames)):
color = colors.next()
ax.title.set_text("Channel {}".format(i+1))
ax.set_axis_bgcolor("#E6E6B8")
ax.plot(x, frame, color)
ax.set_xlim(x[0], x[-1])
ax.xaxis.set_label_text(x_label)
ax.yaxis.set_label_text("Altitude")
def onselect_callback(xmin, xmax):
indmin, indmax = _np.searchsorted(x, (xmin, xmax))
indmax = min(len(frames[0]) - 1, indmax)
x_segment = x[indmin:indmax]
y_segment = frame[indmin:indmax]
zoom_line.set_data(x_segment, y_segment)
zoom_ax.set_xlim(x_segment[0], x_segment[-1])
zoom_ax.set_ylim(y_segment.min(), y_segment.max())
if by_sec:
x_start = int(self.audio_data.duration * float(indmin) / len(x))
x_stop = int(self.audio_data.duration * float(indmax) / len(x))
else:
x_start = indmin
x_stop = indmax
start_time = self.audio_data.duration * float(indmin) / len(x)
stop_time = self.audio_data.duration * float(indmax) / len(x)
zoom_ax.title.set_text("Selected Segment: {} to {}".format(x_start, x_stop))
_plt.draw()
self.audio_data.play(start_time, stop_time)
span_selector = _SpanSelector(ax, onselect_callback, 'horizontal', span_stays = True,
rectprops = dict(alpha = 0.5, facecolor = 'cyan'))
self.__current_widgets["span_selectors"].append(span_selector)
fig.subplots_adjust(top = 0.9, hspace = 0.7)
self.__current_figs.append(fig)
def plot(self, by_sec=True, colors=None):
"""
Plot the audio data.
params:
`by_sec`: if True, it will plot the audio in second or it will plot
the audio data in the number of frames.
`colors`: Any iterable of symbols of color supported by matplotlib.
"""
if colors is None:
colors = _cycle(["#FF6600", "#0033CC"])
else:
colors = _cycle(colors)
num_subplots = self.audio_data.CHANNELS + 1
fig, axs = _plt.subplots(num_subplots, 1, figsize=(20, 7))
fig.suptitle(repr(self.audio_data), fontsize=14, y=1)
frames = [
self.audio_data.data[i] for i in range(2)
] if self.audio_data.CHANNELS == 2 else [self.audio_data.data]
if by_sec:
x = _np.linspace(0,
len(frames[0]) / self.audio_data.SAMPLE_RATE,
num=len(frames[0]))
x_label = "Time (Seconds)"
else:
x = _np.linspace(0, len(frames[0]), num=len(frames[0]))
x_label = "Frame"
zoom_ax = axs[-1]
zoom_ax.set_axis_bgcolor("#E6E6B8")
zoom_ax.title.set_text("Selected Segment")
zoom_ax.xaxis.set_label_text(x_label)
zoom_ax.yaxis.set_label_text("Altitude")
zoom_line, = zoom_ax.plot([], [], "#008A2E")
temp = []
for i, (ax, frame) in enumerate(zip(axs[:-1], frames)):
color = colors.next()
ax.title.set_text("Channel {}".format(i + 1))
ax.set_axis_bgcolor("#E6E6B8")
ax.plot(x, frame, color)
ax.set_xlim(x[0], x[-1])
ax.xaxis.set_label_text(x_label)
ax.yaxis.set_label_text("Altitude")
def onselect_callback(xmin, xmax):
indmin, indmax = _np.searchsorted(x, (xmin, xmax))
indmax = min(len(frames[0]) - 1, indmax)
x_segment = x[indmin:indmax]
y_segment = frame[indmin:indmax]
zoom_line.set_data(x_segment, y_segment)
zoom_ax.set_xlim(x_segment[0], x_segment[-1])
zoom_ax.set_ylim(y_segment.min(), y_segment.max())
if by_sec:
x_start = int(self.audio_data.duration * float(indmin) /
len(x))
x_stop = int(self.audio_data.duration * float(indmax) /
len(x))
else:
x_start = indmin
x_stop = indmax
start_time = self.audio_data.duration * float(indmin) / len(x)
stop_time = self.audio_data.duration * float(indmax) / len(x)
zoom_ax.title.set_text("Selected Segment: {} to {}".format(
x_start, x_stop))
_plt.draw()
self.audio_data.play(start_time, stop_time)
span_selector = _SpanSelector(ax,
onselect_callback,
'horizontal',
span_stays=True,
rectprops=dict(alpha=0.5,
facecolor='cyan'))
self.__current_widgets["span_selectors"].append(span_selector)
fig.subplots_adjust(top=0.9, hspace=0.7)
self.__current_figs.append(fig)