我有一个通过Flask网络服务器运行的拨号音python代码，我的代码中有几个变量，我试图通过roundSlider小部件来控制。我面临的问题是，当我启动程序时，它运行正常，我可以通过我的第一个滑块流畅地控制sample_rate变量，并且可以在拖动第一个滑块时听到不同的音调。但是当我开始拖动第二个滑块来更改振幅值时，它确实会发生变化(开始听到嘈杂的静态声音(，但同时它将采样率音调/声音重置为原始(尽管这并不意味着它会在视觉上/动态地更改第一个滑块(。 请看一下我的代码，看看你是否能帮助我。
app.py 代码：
from __future__ import print_function
from gnuradio import analog
from gnuradio import audio
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
class TopBlock22(gr.top_block): # PEP8: CamelCaseName for classes
def __init__(self, sample_rate=32000, amplitude=0):
gr.top_block.__init__(self, "Top Block 22")
##################################################
# Variables
##################################################
self.sample_rate = sample_rate
print('[TopBlock22] __init__: sample_rate:', self.sample_rate)
self.amplitude = amplitude
print('[TopBlock22] __init__: amplitude:', self.amplitude)
##################################################
# Blocks
##################################################
self.blocks_add_xx = blocks.add_vff(1)
self.audio_sink = audio.sink(32000, '', True)
self.analog_sig_source_x_1 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 440, amplitude, 0)
self.analog_sig_source_x_0 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 350, amplitude, 0)
self.analog_noise_source_x_0 = analog.noise_source_f(analog.GR_GAUSSIAN, amplitude, -42)
##################################################
# Connections
##################################################
self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx, 2))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.connect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
self.connect((self.blocks_add_xx, 0), (self.audio_sink, 0))
def change(self, sample_rate, amplitude):
self.sample_rate = sample_rate
print('[TopBlock22] __init__: sample_rate:', self.sample_rate)
self.analog_sig_source_x_1.set_sampling_freq(self.sample_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.sample_rate)
# def set_amplitude(self, amplitude):
self.amplitude = amplitude
print('[TopBlock22] __init__: amplitude:', self.amplitude)
self.analog_sig_source_x_1.set_amplitude(self.amplitude)
self.analog_sig_source_x_0.set_amplitude(self.amplitude)
self.analog_noise_source_x_0.set_amplitude(self.amplitude)
# lock
self.lock()
# disconect - needs two endpoints (not like in FAQ)
self.disconnect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.disconnect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
# create new
self.analog_sig_source_x_1 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 440, 0.4, 0)
self.analog_sig_source_x_0 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 350, 0.4, 0)
# connect again
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.connect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
# unlock
self.unlock()
# -----------------------------------------------------------------------------
from flask import Flask, request, jsonify
app = Flask(__name__)
tb = None # global variable to keep it between requests
@app.route('/')
def index():
return '''<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GNURadio Slider Example</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/roundSlider/1.3.2/roundslider.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/roundSlider/1.3.2/roundslider.min.js"></script>
</head>
<body>
<style>
#slider1 {
position:absolute;
top:100px;
left:75px;
align:center;
}
#slider2 {
position:absolute;
top:100px;
left:470px;
align:center;
}
#slider3 {
position:absolute;
top:100px;
left:870px;
align:center;
}
#slider4 {
position:absolute;
top:450px;
left:75px;
align:center;
}
#slider5 {
position:absolute;
top:450px;
left:470px;
align:center;
}
#slider6 {
position:absolute;
top:450px;
left:870px;
align:center;
}
</style>
</head>
<body>
<div id="slider1"></div>
<!-- <p>Sample Rate Slider</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider1").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj = $("#slider1").data("roundSlider");
val = obj.getValue();
$.getJSON('/valueofslider', {
slide1_val: val
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide_val: val});
</script>
<div id="slider2"></div>
<!-- <p>Amplitude Slider2</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider2").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj = $("#slider2").data("roundSlider");
val = obj.getValue();
$.getJSON('/valueofslider', {
slide2_val: val
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide_val: val});
</script>
<div id="slider3"></div>
<!-- <p>Frequency Slider3</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider3").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj = $("#slider3").data("roundSlider");
val = obj.getValue();
$.getJSON('/valueofslider', {
slide3_val: val
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide_val: val});
</script>
<div id="slider4"></div>
<!-- <p>Slider4</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider4").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj = $("#slider").data("roundSlider");
val = obj.getValue();
$.getJSON('/valueofslider', {
slide4_val: val
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide_val: val});
</script>
<div id="slider5"></div>
<!-- <p>Slider5</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider5").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj = $("#slider").data("roundSlider");
val = obj.getValue();
$.getJSON('/valueofslider', {
slide5_val: val
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide_val: val});
</script>
<div id="slider6"></div>
<!-- <p>Slider6</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider6").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj = $("#slider").data("roundSlider");
val = obj.getValue();
$.getJSON('/valueofslider', {
slide6_val: val
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide_val: val});
</script>
</body>
</html>'''
# @app.route('/test')
# def test():
# HTML = 'HEAR:'
# for item in (0, 10000, 20000, 25000, 32000):
# HTML += ' <a href="/set/{}">{}</a>'.format(item, item)
# return HTML
# @app.route('/off')
# def off():
# """Turn off sound."""
# sound(0)
# #return jsonify({'val': 0})
# return 'off'
@app.route('/set/<int:value>')
def set_value(value):
"""Set value. Use 0 to turn it off."""
sound(value)
#return jsonify({'val': value})
return str(value)
@app.route('/get')
def get_value():
"""Get value. Returns 0 when turned off."""
if tb:
value = tb.sample_rate
value = tb.amplitude
else:
value = 0
#return jsonify({'val': value})
return str(value)
@app.route('/valueofslider')
def slide():
sample_rate = request.args.get('slide1_val', '32000')
amplitude = request.args.get('slide2_val', '0')
sample_rate = int(sample_rate)
amplitude = int(amplitude)
sound(sample_rate, amplitude)
#return jsonify({'val': sample_rate})
return str(sample_rate)
return str(amplitude)
# def sound_old(sample_rate):
# """version which doesn't use `change()`"""
# global tb
# print('[sound] sample_rate:', sample_rate)
# sample_rate = int(sample_rate)
# # stop old sound
# if tb: # if tb is not None
# tb.stop()
# tb.wait()
# tb = None
# create new sound (if not zero)
if sample_rate > 0 & amplitude == 0:
tb = TopBlock22(sample_rate, amplitude)
tb.start()
def sound(sample_rate, amplitude):
"""version which uses `change()`"""
global tb
print('[sound] sample_rate:', sample_rate)
sample_rate = int(sample_rate)
print('[sound] amplitude:', amplitude)
amplitude = int(amplitude)
if tb: # if tb is not None
if sample_rate > 0 & amplitude == 0 :
tb.change(sample_rate, amplitude)
else:
tb.stop()
tb.wait()
tb = None
# create new sound (if not zero)
if not tb:
if sample_rate > 0 & amplitude == 0:
tb = TopBlock22(sample_rate, amplitude)
tb.start()
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0')
更新：
from __future__ import print_function
from gnuradio import analog
from gnuradio import audio
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
class TopBlock22(gr.top_block): # PEP8: CamelCaseName for classes
def __init__(self, sample_rate=32000, amplitude=0):
gr.top_block.__init__(self, "Top Block 22")
##################################################
# Variables
##################################################
self.sample_rate = sample_rate
print('[TopBlock22] __init__: sample_rate:', self.sample_rate)
self.amplitude = amplitude
print('[TopBlock22] __init__: amplitude:', self.amplitude)
##################################################
# Blocks
##################################################
self.blocks_add_xx = blocks.add_vff(1)
self.audio_sink = audio.sink(32000, '', True)
self.analog_sig_source_x_1 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 440, amplitude, 0)
self.analog_sig_source_x_0 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 350, amplitude, 0)
self.analog_noise_source_x_0 = analog.noise_source_f(analog.GR_GAUSSIAN, amplitude, -42)
##################################################
# Connections
##################################################
self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx, 2))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.connect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
self.connect((self.blocks_add_xx, 0), (self.audio_sink, 0))
def change(self, sample_rate, amplitude=0):
self.sample_rate = sample_rate
print('[TopBlock22] __init__: sample_rate:', self.sample_rate)
self.analog_sig_source_x_1.set_sampling_freq(self.sample_rate)
self.analog_sig_source_x_0.set_sampling_freq(self.sample_rate)
self.amplitude = amplitude
print('[TopBlock22] __init__: amplitude:', self.amplitude)
self.analog_sig_source_x_1.set_amplitude(self.amplitude)
self.analog_sig_source_x_0.set_amplitude(self.amplitude)
self.analog_noise_source_x_0.set_amplitude(self.amplitude)
# lock
self.lock()
# disconect - needs two endpoints (not like in FAQ)
self.disconnect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.disconnect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
# create new
self.analog_sig_source_x_1 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 440, 0.4, 0)
self.analog_sig_source_x_0 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 350, 0.4, 0)
# connect again
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.connect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
# unlock
self.unlock()
# -----------------------------------------------------------------------------
from flask import Flask, request, jsonify
app = Flask(__name__)
tb = None # global variable to keep it between requests
@app.route('/')
def index():
return '''<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GNURadio Slider Example</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/roundSlider/1.3.2/roundslider.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/roundSlider/1.3.2/roundslider.min.js"></script>
</head>
<body>
<style>
#slider1 {
position:absolute;
top:100px;
left:75px;
align:center;
}
#slider2 {
position:absolute;
top:100px;
left:470px;
align:center;
}
#slider3 {
position:absolute;
top:100px;
left:870px;
align:center;
}
#slider4 {
position:absolute;
top:450px;
left:75px;
align:center;
}
#slider5 {
position:absolute;
top:450px;
left:470px;
align:center;
}
#slider6 {
position:absolute;
top:450px;
left:870px;
align:center;
}
</style>
</head>
<body>
<div id="slider1"></div>
<!-- <p>Sample Rate Slider</p> -->
<script>
// keep slider's value
var val1;
// create slider
$("#slider1").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj1 = $("#slider1").data("roundSlider");
val1 = obj1.getValue();
$.getJSON('/valueofslider', {
slide1_val1: val1
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide1_val: val1});
</script>
<div id="slider2"></div>
<!-- <p>Amplitude Slider2</p> -->
<script>
// keep slider's value
var val2;
// create slider
$("#slider2").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj2 = $("#slider2").data("roundSlider");
val2 = obj2.getValue();
$.getJSON('/valueofslider', {
slide2_val2: val2
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide2_val: val2});
</script>
<div id="slider3"></div>
<!-- <p>Frequency Slider3</p> -->
<script>
// keep slider's value
var val3;
// create slider
$("#slider3").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj3 = $("#slider3").data("roundSlider");
val3 = obj3.getValue();
$.getJSON('/valueofslider', {
slide3_val3: val3
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide3_val: val});
</script>
<div id="slider4"></div>
<!-- <p>Slider4</p> -->
<script>
// keep slider's value
var val4;
// create slider
$("#slider4").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj4 = $("#slider").data("roundSlider");
val4 = obj4.getValue();
$.getJSON('/valueofslider', {
slide4_val4: val4
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide4_val: val});
</script>
<div id="slider5"></div>
<!-- <p>Slider5</p> -->
<script>
// keep slider's value
var val5;
// create slider
$("#slider5").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj5 = $("#slider").data("roundSlider");
val5 = obj5.getValue();
$.getJSON('/valueofslider', {
slide5_val5: val5
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide5_val: val});
</script>
<div id="slider6"></div>
<!-- <p>Slider6</p> -->
<script>
// keep slider's value
var val;
// create slider
$("#slider6").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function () {
var obj6 = $("#slider").data("roundSlider");
val6 = obj6.getValue();
$.getJSON('/valueofslider', {
slide6_val6: val6
});
}
});
// play sound at start
$.getJSON('/valueofslider', {slide6_val: val});
</script>
</body>
</html>'''
@app.route('/set/<int:value>')
def set_value(value):
"""Set value. Use 0 to turn it off."""
sound(value)
#return jsonify({'val': value})
return str(value)
@app.route('/get')
def get_value():
"""Get value. Returns 0 when turned off."""
if tb:
value = tb.sample_rate
value = tb.amplitude
else:
value = 0
#return jsonify({'val': value})
return str(value)
@app.route('/valueofslider')
def slide():
sample_rate = request.args.get('slide1_val1', '32000')
sample_rate = int(sample_rate)
return str(sample_rate)
if sample_rate > 0:
tb = TopBlock22(sample_rate)
tb.start()
def slide():
amplitude = request.args.get('slide2_val2', '0')
amplitude = int(amplitude)
sound(sample_rate, amplitude)
return str(amplitude)
if amplitude == 0:
tb = TopBlock22(amplitude)
tb.start()
def sound(sample_rate, amplitude):
"""version which uses `change()`"""
global tb
print('[sound] sample_rate:', sample_rate)
sample_rate = int(sample_rate)
print('[sound] amplitude:', amplitude)
amplitude = int(amplitude)
if tb: # if tb is not None
if sample_rate > 0 & amplitude == 0 :
tb.change(sample_rate, amplitude)
else:
tb.stop()
tb.wait()
tb = None
# create new sound (if not zero)
if not tb:
if sample_rate > 0 & amplitude == 0:
tb = TopBlock22(sample_rate, amplitude)
tb.start()
if __name__ == '__main__':
app.run(debug=True, host='0.0.0.0')
在TopBlock22中，我有两种方法：change_sample_rate() 和 change_amplitude() 所以我只能更改一个值而不关心其他值。
在烧瓶中，我有两个具有不同名称和不同网址的函数
@app.route('/set_sample_rate/<int:value>')
def set_sample_rate(value):
tb.change_sample_rate(value)
return str(value)
@app.route('/set_amplitude/<int:value>')
def set_amplitude(value):
tb.change_amplitude(value)
return str(value)
其中一个使用TopBlock22.change_sample_rate()改变采样率，其他使用TopBlock22.change_amplitude()改变振幅。这样，每个 url 只更改一个值，而不关心其他值。
每个切片器使用不同的 URL 来发送值。这样，每个切片器只更改一个值，而不关心其他值。
我减少了一些东西，让它更简单。
首先，我在开始时创建TopBlock22()实例，并且在值为零时不删除它 - 所以我不必检查它是否存在并重新创建它。
我还减少了JavaScript中的代码。它不使用全局变量来保存值。它使用event.value从切片器获取值。
我还减少了 CSS。我使用类row1、row2、col1、col2、col3在一个类中保持相同的值(top，left(。
我添加了"关闭"按钮，它将零发送到服务器，并更改切片器中的值，以便它们移动到起始位置。它使用旧的函数/valueofslice，sound()和tb.change()一次更改所有值。它使用None来控制哪个值更改，因此它也只能更改其中一个值，而不关心其他值。
from __future__ import print_function
from gnuradio import analog
from gnuradio import audio
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
class TopBlock22(gr.top_block): # PEP8: CamelCaseName for classes
def __init__(self, sample_rate=32000, amplitude=0, frequency=0):
gr.top_block.__init__(self, "Top Block 22")
##################################################
# Variables
##################################################
self.sample_rate = sample_rate
print('[TopBlock22] __init__: sample_rate:', self.sample_rate)
self.amplitude = amplitude
print('[TopBlock22] __init__: amplitude:', self.amplitude)
self.frequency = frequency
print('[TopBlock22] __init__: frequency:', self.frequency)
# for mute_on, mute_off
#self.old_sample_rate = self.sample_rate
#self.old_ampliture = self.ampliture
#self.old_frequency = self.frequency
##################################################
# Blocks
##################################################
self.blocks_add_xx = blocks.add_vff(1)
self.audio_sink = audio.sink(32000, '', True)
self.analog_sig_source_x_1 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 440, amplitude, 0)
self.analog_sig_source_x_0 = analog.sig_source_f(sample_rate, analog.GR_COS_WAVE, 350, amplitude, 0)
self.analog_noise_source_x_0 = analog.noise_source_f(analog.GR_GAUSSIAN, amplitude, -42)
##################################################
# Connections
##################################################
self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx, 2))
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
self.connect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
self.connect((self.blocks_add_xx, 0), (self.audio_sink, 0))
def change_sample_rate(self, value=None):
if value is not None:
self.sample_rate = value
print('[TopBlock22] change: sample_rate:', value)
self.analog_sig_source_x_1.set_sampling_freq(value)
self.analog_sig_source_x_0.set_sampling_freq(value)
def change_amplitude(self, value=None):
if value is not None:
value /= 10000.
self.amplitude = value
print('[TopBlock22] change: amplitude:', value)
self.analog_sig_source_x_1.set_amplitude(value)
self.analog_sig_source_x_0.set_amplitude(value)
self.analog_noise_source_x_0.set_amplitude(value)
def change_frequency(self, value=None):
if value is not None:
self.frequency = value
print('[TopBlock22] change: frequency:', value)
#TODO: change some values
def change(self, sample_rate=None, amplitude=None, frequency=None):
#self.change_sample_rate(sample_rate)
#self.change_amplitude(amplitude)
#self.change_frequency(frequency)
if sample_rate is not None:
self.change_sample_rate(sample_rate)
if amplitude is not None:
self.change_amplitude(amplitude)
if frequency is not None:
self.change_frequency(frequency)
def turn_off(self):
self.change(0, 0, 0)
#def mute_on(self):
# # remember values
# self.old_sample_rate = self.sample_rate
# self.old_ampliture = self.ampliture
# self.old_frequency = self.frequency
# # turn off sound
# self.change(0, 0, 0)
#def mute_off(self):
# # set old values
# self.change(self.old_sample_rate, self.old_ampliture, self.old_frequency)
# -----------------------------------------------------------------------------
from flask import Flask, request, jsonify
app = Flask(__name__)
# start with default values
#tb = TopBlock22()
tb = TopBlock22(0, 0, 0)
tb.start()
@app.route('/')
def index():
return '''<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GNURadio Slider Example</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/roundSlider/1.3.2/roundslider.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/roundSlider/1.3.2/roundslider.min.js"></script>
<style>
.slider {
position: absolute;
align:center;
}
.row1 {top:100px;}
.row2 {top:450px;}
.col1 {left:75px;}
.col2 {left:470px;}
.col3 {left:870px;}
</style>
</head>
<body>
<div id="slider1" class='slider row1 col1'></div>
<!-- <p>Sample Rate Slider</p> -->
<div id="slider2" class='slider row1 col2'></div>
<!-- <p>Amplitude Slider2</p> -->
<div id="slider3" class='slider row1 col3'></div>
<!-- <p>Frequency Slider3</p> -->
<div id="slider4" class='slider row2 col1'></div>
<!-- <p>Slider4</p> -->
<div id="slider5" class='slider row2 col2'></div>
<!-- <p>Slider5</p> -->
<div id="slider6" class='slider row2 col3'></div>
<!-- <p>Slider6</p> -->
<button id="turn_off_button">TURN OFF</button>
<script>
// create sliders
$("#slider1").roundSlider({
radius: 150,
min: 0,
max: 10000,
value: 0, // default value at start
//change: function(event) { $.getJSON('/valueofslider', {slide1_val: event.value}); }
change: function(event) { $.getJSON('/set_sample_rate/' + event.value); }
});
$("#slider2").roundSlider({
radius: 150,
min: 0,
max: 10000,
value: 0, // default value at start
//change: function(event) { $.getJSON('/valueofslider', {slide2_val: event.value}); }
change: function(event) { $.getJSON('/set_amplitude/' + event.value); }
});
$("#slider3").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
//change: function(event) { $.getJSON('/valueofslider', {slide3_val: event.value}); }
change: function(event) { $.getJSON('/set_frequency/' + event.value); }
});
$("#slider4").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function(event) { $.getJSON('/valueofslider', {slide4_val: event.value}); }
});
$("#slider5").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function(event) { $.getJSON('/valueofslider', {slide5_val: event.value}); }
});
$("#slider6").roundSlider({
radius: 150,
min: 0,
max: 10000000000,
value: 0, // default value at start
change: function (event) { $.getJSON('/valueofslider', {slide6_val: event.value}); }
});
$("#turn_off_button").click(function(){
// set sliders
$("#slider1").data("roundSlider").setValue(0);
$("#slider2").data("roundSlider").setValue(0);
$("#slider3").data("roundSlider").setValue(0);
// send to server
$.getJSON('/valueofslider', {
slide1_val: 0,
slide2_val: 0,
slide3_val: 0,
});
});
</script>
</body>
</html>'''
@app.route('/off')
def off():
"""Turn off sound."""
tb.turn_off()
#return jsonify({'val': 0})
return 'off'
@app.route('/set_sample_rate/<int:value>')
def set_sample_rate(value):
#sound(sample_rate=value)
tb.change_sample_rate(value)
#return jsonify({'sample_rate': value})
return str(value)
@app.route('/set_amplitude/<int:value>')
def set_amplitude(value):
#sound(amplitude=value)
tb.change_amplitude(value)
#return jsonify({'amplitude': value})
return str(value)
@app.route('/set_frequency/<int:value>')
def set_frequency(value):
#sound(frequency=value)
tb.change_frequency(value)
#return jsonify({'frequency': value})
return str(value)
@app.route('/valueofslider')
def slide():
sample_rate = request.args.get('slide1_val', None)
amplitude = request.args.get('slide2_val', None)
frequency = request.args.get('slide3_val', None)
sound(
sample_rate=sample_rate,
amplitude=amplitude,
frequency=frequency,
)
#return jsonify({
# 'sample_rate': sample_rate,
# 'amplitude': amplitude,
# 'frequency ': frequency ,
# })
return 'sample_rate: {}, amplitude: {}, frequency : {}'.format(sample_rate, amplitude, frequency )
def sound(sample_rate=None, amplitude=None, frequency=None):
"""version which uses `change()`"""
if sample_rate is not None:
sample_rate = int(sample_rate)
tb.change_sample_rate(sample_rate)
if amplitude is not None:
amplitude = int(amplitude)
tb.change_amplitude(amplitude)
if frequency is not None:
frequency = int(frequency )
tb.change_frequency(frequency )
print('[sound] sample_rate:', sample_rate)
print('[sound] amplitude:', amplitude)
print('[sound] frequency:', frequency)
#if tb: # if tb is not None
# tb.change(sample_rate, amplitude, frequency)
if __name__ == '__main__':
app.run(host='0.0.0.0', debug=True)