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Web Audio Api destination maxChannelCount always is 2 on Linux
The Next CEO of Stack OverflowHow do I prompt for Yes/No/Cancel input in a Linux shell script?How to symlink a file in Linux?How do I change permissions for a folder and all of its subfolders and files in one step in Linux?How to change the output color of echo in LinuxHow can I use grep to show just filenames on Linux?Playing audio with Javascript?How do I copy folder with files to another folder in Unix/Linux?How do I find all files containing specific text on Linux?Why does the C preprocessor interpret the word “linux” as the constant “1”?Connect multiple sound card inputs using the Web Audio API
I have a problem with Web Audio API and an usb audio interface on Linux;
I wrote some audio player code on Web Audio API.
Everything is alright when I connect my 7.1 USB Audio Interface (TASCAM 16x08 - there are 8 output channels) and start my APP on Windows machine. context.destination.maxChannelCount equals 8 and I can select the channel to output the sound.
But when I do the same on Linux machine context.destination.maxChannelCount always is 2 (stereo).
I tried to:
- create virtual audio multichannel device = same result - always only 2 maxChannelCount;
- setting alsa, pulseaudio, jack audio connection kit and more...
The result is the same: in my code context.destination.maxChannelCount is always is 2
but the operating systems settings dialog detects 8 channels.
This is some code to be clear:
var context = new (window.AudioContext || window.webkitAudioContext)();
var audio = new Audio();
var source = context.createMediaElementSource(audio);
source.connect(context.destination);
audio.src = 'audio.mp3';
audio.play();
console.log(context.destination.maxChannelCount); //output on win: 2
on linux: 8
What can be the problem?
linux electron html5-audio web-audio-api
edited Mar 7 at 15:32
kalehmann
2,7331023
asked Mar 7 at 15:22
EvgenyEvgeny
1
add a comment |
I have a problem with Web Audio API and an usb audio interface on Linux;
I wrote some audio player code on Web Audio API.
Everything is alright when I connect my 7.1 USB Audio Interface (TASCAM 16x08 - there are 8 output channels) and start my APP on Windows machine. context.destination.maxChannelCount equals 8 and I can select the channel to output the sound.
But when I do the same on Linux machine context.destination.maxChannelCount always is 2 (stereo).
I tried to:
- create virtual audio multichannel device = same result - always only 2 maxChannelCount;
- setting alsa, pulseaudio, jack audio connection kit and more...
The result is the same: in my code context.destination.maxChannelCount is always is 2
but the operating systems settings dialog detects 8 channels.
This is some code to be clear:
var context = new (window.AudioContext || window.webkitAudioContext)();
var audio = new Audio();
var source = context.createMediaElementSource(audio);
source.connect(context.destination);
audio.src = 'audio.mp3';
audio.play();
console.log(context.destination.maxChannelCount); //output on win: 2
on linux: 8
What can be the problem?
linux electron html5-audio web-audio-api
edited Mar 7 at 15:32
kalehmann
2,7331023
asked Mar 7 at 15:22
EvgenyEvgeny
1
add a comment |
I have a problem with Web Audio API and an usb audio interface on Linux;
I wrote some audio player code on Web Audio API.
Everything is alright when I connect my 7.1 USB Audio Interface (TASCAM 16x08 - there are 8 output channels) and start my APP on Windows machine. context.destination.maxChannelCount equals 8 and I can select the channel to output the sound.
But when I do the same on Linux machine context.destination.maxChannelCount always is 2 (stereo).
I tried to:
- create virtual audio multichannel device = same result - always only 2 maxChannelCount;
- setting alsa, pulseaudio, jack audio connection kit and more...
The result is the same: in my code context.destination.maxChannelCount is always is 2
but the operating systems settings dialog detects 8 channels.
This is some code to be clear:
var context = new (window.AudioContext || window.webkitAudioContext)();
var audio = new Audio();
var source = context.createMediaElementSource(audio);
source.connect(context.destination);
audio.src = 'audio.mp3';
audio.play();
console.log(context.destination.maxChannelCount); //output on win: 2
on linux: 8
What can be the problem?
linux electron html5-audio web-audio-api
edited Mar 7 at 15:32
kalehmann
2,7331023
asked Mar 7 at 15:22
EvgenyEvgeny
1
I have a problem with Web Audio API and an usb audio interface on Linux;
I wrote some audio player code on Web Audio API.
Everything is alright when I connect my 7.1 USB Audio Interface (TASCAM 16x08 - there are 8 output channels) and start my APP on Windows machine. context.destination.maxChannelCount equals 8 and I can select the channel to output the sound.
But when I do the same on Linux machine context.destination.maxChannelCount always is 2 (stereo).
I tried to:
- create virtual audio multichannel device = same result - always only 2 maxChannelCount;
- setting alsa, pulseaudio, jack audio connection kit and more...
The result is the same: in my code context.destination.maxChannelCount is always is 2
but the operating systems settings dialog detects 8 channels.
This is some code to be clear:
var context = new (window.AudioContext || window.webkitAudioContext)();
var audio = new Audio();
var source = context.createMediaElementSource(audio);
source.connect(context.destination);
audio.src = 'audio.mp3';
audio.play();
console.log(context.destination.maxChannelCount); //output on win: 2
on linux: 8
What can be the problem?
linux electron html5-audio web-audio-api
linux electron html5-audio web-audio-api
edited Mar 7 at 15:32
kalehmann
2,7331023
asked Mar 7 at 15:22
EvgenyEvgeny
1
edited Mar 7 at 15:32
kalehmann
2,7331023
asked Mar 7 at 15:22
EvgenyEvgeny
1
edited Mar 7 at 15:32
kalehmann
2,7331023
edited Mar 7 at 15:32
kalehmann
2,7331023
edited Mar 7 at 15:32
kalehmann
2,7331023
2,7331023
asked Mar 7 at 15:22
EvgenyEvgeny
1
asked Mar 7 at 15:22
EvgenyEvgeny
1
asked Mar 7 at 15:22
EvgenyEvgeny
1
1
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
What browser are you running? Browser is responsible for giving you those available outputs, if they're not there (in all available browsers) then i think you're out of luck. I have done some things with Web Audio and multiple outputs and even on the same OS i got different results from different browsers.
answered Mar 7 at 15:51
EindbaasEindbaas
369415
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
add a comment |
I found solution here https://ubuntuforums.org/archive/index.php/t-1072792.html
solved it by editing /etc/pulse/daemon.conf.
; default-sample-channels
= 2 uncomment the line and add more channels.
answered Mar 8 at 8:31
EvgenyEvgeny
1
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
What browser are you running? Browser is responsible for giving you those available outputs, if they're not there (in all available browsers) then i think you're out of luck. I have done some things with Web Audio and multiple outputs and even on the same OS i got different results from different browsers.
answered Mar 7 at 15:51
EindbaasEindbaas
369415
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
add a comment |
What browser are you running? Browser is responsible for giving you those available outputs, if they're not there (in all available browsers) then i think you're out of luck. I have done some things with Web Audio and multiple outputs and even on the same OS i got different results from different browsers.
answered Mar 7 at 15:51
EindbaasEindbaas
369415
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
add a comment |
What browser are you running? Browser is responsible for giving you those available outputs, if they're not there (in all available browsers) then i think you're out of luck. I have done some things with Web Audio and multiple outputs and even on the same OS i got different results from different browsers.
answered Mar 7 at 15:51
EindbaasEindbaas
369415
What browser are you running? Browser is responsible for giving you those available outputs, if they're not there (in all available browsers) then i think you're out of luck. I have done some things with Web Audio and multiple outputs and even on the same OS i got different results from different browsers.
answered Mar 7 at 15:51
EindbaasEindbaas
369415
answered Mar 7 at 15:51
EindbaasEindbaas
369415
answered Mar 7 at 15:51
EindbaasEindbaas
369415
answered Mar 7 at 15:51
EindbaasEindbaas
369415
369415
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
add a comment |
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
I use electron js - my browser is Chromium. It`s looks like Chromium in linux can not detect device channel count and set it for 2 as default
– Evgeny
Mar 7 at 16:37
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
Try and see what number of outputs you get in different browsers on linux. I assume you have that audio interface working correctly in linux? as in you have somewhere in the OS saying that you have 8 outputs available?
– Eindbaas
Mar 7 at 16:40
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
It can be Chromium, but can also be something else. Does your OS say you have 8 outputs?
– Eindbaas
Mar 7 at 16:43
add a comment |
I found solution here https://ubuntuforums.org/archive/index.php/t-1072792.html
solved it by editing /etc/pulse/daemon.conf.
; default-sample-channels
= 2 uncomment the line and add more channels.
answered Mar 8 at 8:31
EvgenyEvgeny
1
add a comment |
I found solution here https://ubuntuforums.org/archive/index.php/t-1072792.html
solved it by editing /etc/pulse/daemon.conf.
; default-sample-channels
= 2 uncomment the line and add more channels.
answered Mar 8 at 8:31
EvgenyEvgeny
1
add a comment |
I found solution here https://ubuntuforums.org/archive/index.php/t-1072792.html
solved it by editing /etc/pulse/daemon.conf.
; default-sample-channels
= 2 uncomment the line and add more channels.
answered Mar 8 at 8:31
EvgenyEvgeny
1
I found solution here https://ubuntuforums.org/archive/index.php/t-1072792.html
solved it by editing /etc/pulse/daemon.conf.
; default-sample-channels
= 2 uncomment the line and add more channels.
answered Mar 8 at 8:31
EvgenyEvgeny
1
answered Mar 8 at 8:31
EvgenyEvgeny
1
answered Mar 8 at 8:31
EvgenyEvgeny
1
answered Mar 8 at 8:31
EvgenyEvgeny
1
1
add a comment |
add a comment |
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