Is there a way to select a web audio node with a variable in place of the nodes name?
I have a bank of 5 oscillator nodes and want to be able to select the waveshape of specific nodes. All oscillators hare names osc1, osc2, osc3 etc. and I want to be able to select which one I'm changing with the elements id (1, 2, 3 etc.)
This is what I thought would work:
var oscNum = ("osc"+eleNum)
if (element.value == 1)
{
oscNum.type = 'square';
}
else if (element.value == 2)
{
oscNum.type = "sawtooth";
}
else if (element.value == 3)
{
oscNum.type = "triangle";
}
else if (element.value == 0)
{
oscNum.type = "sine";
}
However it doesn't and I'm wondering if there's any way it's possible to use var.type instead of osc1.type to select a node.
javascript html5 web-audio web-audio-api
asked Jan 19 at 16:21
Custard320Custard320
205
add a comment |
I have a bank of 5 oscillator nodes and want to be able to select the waveshape of specific nodes. All oscillators hare names osc1, osc2, osc3 etc. and I want to be able to select which one I'm changing with the elements id (1, 2, 3 etc.)
This is what I thought would work:
var oscNum = ("osc"+eleNum)
if (element.value == 1)
{
oscNum.type = 'square';
}
else if (element.value == 2)
{
oscNum.type = "sawtooth";
}
else if (element.value == 3)
{
oscNum.type = "triangle";
}
else if (element.value == 0)
{
oscNum.type = "sine";
}
However it doesn't and I'm wondering if there's any way it's possible to use var.type instead of osc1.type to select a node.
javascript html5 web-audio web-audio-api
asked Jan 19 at 16:21
Custard320Custard320
205
add a comment |
I have a bank of 5 oscillator nodes and want to be able to select the waveshape of specific nodes. All oscillators hare names osc1, osc2, osc3 etc. and I want to be able to select which one I'm changing with the elements id (1, 2, 3 etc.)
This is what I thought would work:
var oscNum = ("osc"+eleNum)
if (element.value == 1)
{
oscNum.type = 'square';
}
else if (element.value == 2)
{
oscNum.type = "sawtooth";
}
else if (element.value == 3)
{
oscNum.type = "triangle";
}
else if (element.value == 0)
{
oscNum.type = "sine";
}
However it doesn't and I'm wondering if there's any way it's possible to use var.type instead of osc1.type to select a node.
javascript html5 web-audio web-audio-api
asked Jan 19 at 16:21
Custard320Custard320
205
I have a bank of 5 oscillator nodes and want to be able to select the waveshape of specific nodes. All oscillators hare names osc1, osc2, osc3 etc. and I want to be able to select which one I'm changing with the elements id (1, 2, 3 etc.)
This is what I thought would work:
var oscNum = ("osc"+eleNum)
if (element.value == 1)
{
oscNum.type = 'square';
}
else if (element.value == 2)
{
oscNum.type = "sawtooth";
}
else if (element.value == 3)
{
oscNum.type = "triangle";
}
else if (element.value == 0)
{
oscNum.type = "sine";
}
However it doesn't and I'm wondering if there's any way it's possible to use var.type instead of osc1.type to select a node.
javascript html5 web-audio web-audio-api
javascript html5 web-audio web-audio-api
asked Jan 19 at 16:21
Custard320Custard320
205
asked Jan 19 at 16:21
Custard320Custard320
205
asked Jan 19 at 16:21
Custard320Custard320
205
asked Jan 19 at 16:21
Custard320Custard320
205
asked Jan 19 at 16:21
Custard320Custard320
205
205
add a comment |
add a comment |
1 Answer
1
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oldest
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In your example the first line of code is computing a string. Let's say that eleNum equals 3. Then the value of oscNum would be just the string "osc3".
If you want to select your oscillators by their index you can for example use an array to store them.
const oscillators = [ osc0, osc1, osc2, osc3 ];
Later on you can select an individual oscillator by its index and set the type.
oscillators[eleNum].type = "triangle";
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
add a comment |
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1 Answer
1
active
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
In your example the first line of code is computing a string. Let's say that eleNum equals 3. Then the value of oscNum would be just the string "osc3".
If you want to select your oscillators by their index you can for example use an array to store them.
const oscillators = [ osc0, osc1, osc2, osc3 ];
Later on you can select an individual oscillator by its index and set the type.
oscillators[eleNum].type = "triangle";
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
add a comment |
In your example the first line of code is computing a string. Let's say that eleNum equals 3. Then the value of oscNum would be just the string "osc3".
If you want to select your oscillators by their index you can for example use an array to store them.
const oscillators = [ osc0, osc1, osc2, osc3 ];
Later on you can select an individual oscillator by its index and set the type.
oscillators[eleNum].type = "triangle";
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
add a comment |
In your example the first line of code is computing a string. Let's say that eleNum equals 3. Then the value of oscNum would be just the string "osc3".
If you want to select your oscillators by their index you can for example use an array to store them.
const oscillators = [ osc0, osc1, osc2, osc3 ];
Later on you can select an individual oscillator by its index and set the type.
oscillators[eleNum].type = "triangle";
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
In your example the first line of code is computing a string. Let's say that eleNum equals 3. Then the value of oscNum would be just the string "osc3".
If you want to select your oscillators by their index you can for example use an array to store them.
const oscillators = [ osc0, osc1, osc2, osc3 ];
Later on you can select an individual oscillator by its index and set the type.
oscillators[eleNum].type = "triangle";
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
answered Jan 19 at 17:14
chrisguttandinchrisguttandin
1313
1313
add a comment |
add a comment |
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