I'm facing a problem that flutter_tts package speak volume coming from Ear Speaker rather then Music Speaker.
Then I Just set following functionality for IOS platform
await flutterTts.setIosAudioCategory(IosTextToSpeechAudioCategory.playback, [ IosTextToSpeechAudioCategoryOptions.defaultToSpeaker ]);
By This implementation, My problem solved. But for Android case It's going crash so make proper condition for platform as well like below:
Platform.isIOS ? await flutterTts.setIosAudioCategory(IosTextToSpeechAudioCategory.playback, [
IosTextToSpeechAudioCategoryOptions.defaultToSpeaker
]) : '';
Related
Is it possible to programmatically take a screenshot of the current phone view while the react-native app is in the background? The expo api for takeSnapshotAsync requires a view ref to work. I do not want to capture the actual app itself. I want to capture whatever the user is doing on their phone.
I believe this one should be able to do what you want: https://github.com/gre/react-native-view-shot
import RNViewShot from "react-native-view-shot";
RNViewShot.takeSnapshot(viewRef, {
format: "jpeg",
quality: 0.8
})
.then(
uri => console.log("Image saved to", uri),
error => console.error("Oops, snapshot failed", error)
);
Try to call RNViewShot in setInterval maybe it will work even when the app is minimalized. If RNViewShot will not work then you will have to create your own native ios module.
I'm building an IOS app in ionic that captures media (photo, video, audio) and ran into a quite confounding issue today. I'm using the following 3 methods (on MediaCapture):
captureImage()
captureVideo()
captureAudio()
The only one that doesn't work is captureImage() and I can't, for the life of me, figure out why. Side note: I was able to use camera.getPicture() but I'd like to use MediaCapture for all 3 media types (and it doesn't make sense why I can't).
Here are some details:
Environment
OS: Mac OS 10.12.6
Node: 9.0.0
ionic: 3.15.2
Cordova: 7.1.0
iOS: 11.1
I'm running the app on my device using ionic cordova run ios -l -c -s.
Sample code
Example Code (extracted Typescript)
private media: object = {
'image': 'captureImage',
'video': 'captureVideo',
'audio': 'captureAudio'
};
function captureMedia(media) {
console.log('capturing');
const options: CaptureImageOptions = {
limit: 1
};
this.mediaCapture[this.media[media]](options)
.then(
(data: MediaFile[]) => console.log(JSON.stringify(data)),
(err: CaptureError) => console.error(JSON.stringify(err))
);
}
captureMedia('image'); // CRASHES!!
captureMedia('audio'); // WORKS!
captureMedia('video'); // WORKS!
No output. No warnings. No console output. Just kaput!
I feel like I'm missing something here but I can't see what it is. Can anyone help?
So, I ended up attempting to run this on my device from Xcode and finally got a useful error message! It turns out, my config.xml was missing one property for privacy permissions.
This was the one that was missing:
<edit-config file="*-Info.plist" mode="merge" target="NSPhotoLibraryAddUsageDescription">
<string>Allow photo library access.</string>
</edit-config>
Remember, you'll also need descriptions for the following (which I had):
NSCameraUsageDescription
NSMicrophoneUsageDescription
NSPhotoLibraryUsageDescription
Cheers!
my application is a media player application,on automating the application i need to control the media volume up and down
i have tried with adb commands in my program but it not worked , can any one please help me on this.
code :
public void devicevolume()throws IOException, InterruptedException{
Process p = Runtime.getRuntime()
.exec("adb - KEYCODE_VOLUME_DOWN");
p.waitFor();
p.destroy();
}
You can give a try through adb commands:
you can call setMasterVolume() with
service call audio <code> i32 <volume>
The codes are version specific. Let's say you want to set volume to 50% on a KitKat device. The command will be:
service call audio 9 i32 50
read ktnr74.blogspot.com/2014/09/… to find out the proper code for your android version
You can use the Android driver and pass the key event for increasing and decreasing the device volume
I've developed an app using Cordova and the Web Audio API, that allows the user to plug in headphones, press the phone against their heart, and hear their own heartbeat.
It does this by using audio filter nodes.
//Setup userMedia
context = new (window.AudioContext||window.webkitAudioContext);
navigator.getUserMedia = (navigator.getUserMedia ||
navigator.webkitGetUserMedia ||
navigator.mozGetUserMedia ||
navigator.msGetUserMedia);
navigator.getUserMedia(
{audio:true},
userMediaSuccess,
function(e) {
alert("error2 " + e.message);
});
function userMediaSuccess(stream)
{
//set microphone as input
input = context.createMediaStreamSource(stream);
//amplify the incoming sounds
volume = context.createGain();
volume.gain.value = 10;
//filter out sounds below 25Hz
lowPass = context.createBiquadFilter();
lowPass.type = 'lowpass';
lowPass.frequency.value = 25;
//filter out sounds above 425Hz
highPass = context.createBiquadFilter();
highPass.type = 'highpass';
highPass.frequency.value = 425;
//apply the filters and amplification to microphone input
input.connect(lowPass);
input.connect(highPass);
input.connect(volume);
//send the result of these filters to the phones speakers
highPass.connect(context.destination);
lowPass.connect(context.destination);
volume.connect(context.destination);
}
It runs fine when I deploy to Android, but it seems most of these features aren't available on iOS mobile browsers.
I managed to make getUserMedia function using the iosRTC plugin, but createMediaStreamSource is still "not a function."
So, I'm looking for an alternative to the Web Audio API that can filter out frequencies, or if there are any plugins I could use, that would be perfect.
There's no way to do this on ios web. You'd need a native app, since Apple doesn't support audio input in safari.
Did you try to use
document.addEventListener('deviceready', function () {
// Just for iOS devices.
if (window.device.platform === 'iOS') {
cordova.plugins.iosrtc.registerGlobals();
}
});
You asked this question quite a while ago, but sadly createMediaStreamSource is still not supported in Safari Mobile (will it ever be?).
As previously said, a plugin is the only way to achieve this, and there is actually a Cordova/Phonegap plugin that does exactly that. cordova-plugin-audioinput gives you access to the sound from the microphone using either the Web Audio API or by callbacks that delivers raw audio data chunks, and it supports iOS as well as Android.
Since I don't want to post the same answer twice, I'll instead point you to the following answer here on stackoverflow, where you'll also find a code example: https://stackoverflow.com/a/38464815/6609803
I'm the creator of the plugin and any feedback is appreciated.
Good news, full support for ios safari
https://developer.mozilla.org/en-US/docs/Web/API/AudioContext/createMediaStreamSource
I'm trying to implement speech recognition on Chrome on the iPad without any luck. Just to cut to the chase and remove any dependencies on my implementation of the webkitSpeechRecognition api, Glenn Shire's excellent sample code does not run on Chrome v27 on an iPad 1 running iOS 5.1.1 or Chrome v31 on an iPad3 running iOS 7.0.4, at least as far as I can tell. It fails at this line:
if (!('webkitSpeechRecognition' in window)) {
r.onState('upgrade');
return;
}
I can't figure out a workaround, and I've not seen any online postings that say anything about speech recognition not working in the iOS version of Chrome. Anyone else run into this?
Chrome on iOS doesn't support Speech Recognition at the moment.
Google have to use iOS UIWebView that mean there is no special web interpretation feature that are not supported on Safari.
You may have a look to this link.
In case you want to recognize few simple commands you can look on Pocketsphinx.js
The code to recognize speech is simple:
var id = 0;
recognizer.postMessage({command: 'initialize', callbackId: id});
var keyphrase = "HELLO WORLD";
recognizer.postMessage({command: 'addKeyword', data: keyphrase, callbackId: id});
recognizer.postMessage({command: 'start', data: id});
recognizer.postMessage({command: 'process', data: array});
recognizer.postMessage({command: 'stop'});
recognizer.onmessage = function(e) {
if (e.data.hasOwnProperty('hyp')) {
alert(e.data.hyp);
}
};
For more details see also the full example here