holzschu
play sound
You can play sounds when running scripts via jsc. JavaScript run through jsc has access to the Web AudioContext.
Thanks. I don't suppose you have (or can point me to) an example which can play an .mp3 file?
On Oct 4, 2020, at 8:23 PM, Henry Heino [email protected] wrote:
You can play sounds when running scripts via jsc. JavaScript run through jsc has access to the Web AudioContext https://developer.mozilla.org/en-US/docs/Web/API/AudioContext.
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FWIW, I just noticed that the jsc command in a-shell lacks the interactive UI.
jsc runs JavaScript directly in hterm.html. As such, any document manipulations are reflected there. Through this, it has a sort of interactive UI... For example,
$ cat temp.js
let doc = document.documentElement;
doc.style.filter = "invert(100%)";
$ jsc temp.js
will invert a-Shell's colors. Of course, you can do much more than that, and playing audio is just one example.
Unfortunately, jsc's running JavaScript in the same context as hterm.html (as opposed to say, node) makes it more difficult to access files (at least, I think so -- maybe WasmFs can be used?).
The AudioContext, however can be used to synthesize audio. I'm not sure that this works for you.
Additionally, the open command can be used to open mp3 files.
One way you could play an mp3 is serving it with python -- something like this might work:
** This is an idea -- I have yet to try it. **
$ cd musicDirectory
$ ls
foo.mp3
$ cat playMusic.js
setTimeout(() =>
{
let audio = new Audio("127.0.0.1:8000/foo.mp3");
// See https://developer.mozilla.org/en-US/docs/Web/API/HTMLAudioElement/Audio
audio.addEventListener("canplay", () =>
{
audio.play();
});
}, 1000); // Wait 1 second before playing -- ideally, we would
// start the server before running jsc, but that requires running
// python3 -m http.server in the background.
$ jsc playMusic.js
$ python -m http.server
If this works, you should be able to automate it using a python script!
Additionally, hterm.html defines a WasmFs object! I'm not sure how, but this might be able to transfer files to js code without sending them via a local server.
Note that there are probably other ways to play an mp3 from aShell -- these are just the ones I could think of.
I hope this is helpful!
Am I correct that there is still no more direct way to play a local MP3 file?
There is now a command to play files (v. 1.6.6): "play". It will play audio and video files, and keep playing if the app is in the background.
Hi! I am using the play command in a folder with a bunch of mp3 files. Is it possible to add a next-button or autoplay next track?
