I understand how to record microphone input in AS3 from this doc.
Is it possible to record sound exactly as they are being output/played?
The reason is I applied some sound transform (via the global SoundMixer) to sounds that are currently playing; and I also want to record this sound data while it is being played.
I just saw this question, to clarify, I am not trying to record just all sounds on the user's computer (which is not possible). My flash app has a Youtube player in it (via their AS3 API), and it's playing some sounds. I applied transforms using SoundMixer.soundTransform, and I want to record what's being played when the user is playing it.
Thanks in advance.
Just a passing suggestion.. on my desktop it seems ABLE to record sound into Flash from a different tab playing Youtube (HTML5).. I don't know how it's doing that!!
I allow microphone here.. (none actually plugged in, and speaker out has in-ear headphones)
http://code.tutsplus.com/tutorials/create-a-useful-audio-recorder-app-in-actionscript-3--active-5836
PS: Anyone trying this must reduce Windows volume since anything above 10-20% is distorted audio into the Flash app.
And this HTML5 youtube trailer was recorded fine into the Wav file produced by Flash app above
http://www.youtube.com/watch?v=MVt32qoyhi0
So after a quick search it seems my Realtek Audio is classed as a Full-Duplex soundcard and also within its own control panel I have an option called "Multi-streaming" which is enabled/ticked. I think Full-Duplex is enough to do this though. Try options within your soundcard's own settings software. Don't know about your end-users. Some hardware will do it, some wont, there is no all-round solution outside of AIR (which makes desktop apps out of your AS3 code).
Related
I have a app where I play different code-generated sounds. I place these sounds in a AudioBufferSourceNode.
I allow the the user to choose what output device to play the sound through, so I use a MediaStreamAudioDestinationNode with its stream used as the source for an Audio Element. This way when the user chooses an audio output to play the sound to, I set the Sink Id of the Audio element to the requested audio output.
So I have AudioBufferSourceNode -> some Audio Graph (gain nodes, etc) -> MediaStreamAudioDestinationNode -> Audio element.
When I Play the first sound, it sound fine. But when I create a new source and connect it to the same MediaStreamAudioDestinationNode, the sound is played with the wrong pitch.
I created a Fiddle that shows the problem.
Is this a bug, or am I doing something wrong?
The problem was identified based on the OP Chrome Ticket.
It seems to come from the lack of sync between AudioElement and its source AudioNode (AudioBufferSourceNode, OscillatorNode, etc.) when you pause the source and play it back again.
The solution is to always call AudioElement.pause() and AudioElement.start() alongside your source stop and start.
https://jsfiddle.net/k1r7o0xj/3/
It's possible to dynamically change your graph layout by using .connect() and .disconnect(), even when audio is playing or sent through a stream (which could even be streamed over WebRTC).
I couldn't find a reference in the spec, so I'm pretty sure this is taken for granted.
For example, if you have two AudioBufferSourceNodes bufferSource1 and bufferSource2, and a MediaStreamAudioDestinationNode streamDestination:
bufferSource1.connect(streamDestination);
//do some other things here, and after some time, switch to bufferSource2:
//(streamDestination doesn't need to be explicitly specified here)
bufferSource1.disconnect(streamDestination);
bufferSource2.connect(streamDestination);
Example in action.
Edit 1:
Proper implementation:
According to the Editors Draft on the Audio Output API, it is planned/will be possible to choose a custom audio output device for the AudioContext as well (by means of new AudioContext({ sinkId: requestedSinkId });). I couldn't find any info on the progress, and even found a related discussion which the asker apparently read already. According to this and (many) other references, it doesn't seem te be an easy task, but it's planned for WA V1.
Edit:
That section has been removed from the API Draft, but you can still find it in an older version.
Current workaround:
I played around with your workaround (using a MediaStreamAudioDestinationNode and Audio object), and it seems to be related to nothing being connected. I modified my example to toggle a single buffer (similar to your example but with an AudioBufferSourceNode), and observed a similar frequency drop. However, when using a GainNode inbetween and setting it's gain.value to either 0 or 1, the frequency drops disappeared (this isn't gonna be the solution if you want to create and connect new AudioBuffers dynamically).
I'm a relatively new developer in AS3 using Flash Builder. My objective is to create a quick/fast loading small SWF preloader for a larger (30mg) SWF application. I can't include the larger SWF inside the preloader, but I can use external interface calls to get jquery to tell me what the speed of internet the users are using and figure out how long it should take to load based on the size of the larger SWF.
Right now, we have a large web application that takes around 5 mins to load if the client has a slow internet connection. So, we wanted to use a small SWF preloader that will display a loading circle or loading bar, and display options if the SWF takes longer than 5 mins to load. Kind of like error handling. For instance, for Safari, sometimes the player actually has to click the SWF in order for it to load. Is it possible to have a button on the SWF that will make it start loading?... Is it easier to create the preloader in jQuery? I'm just wondering if it's just going to create more issues using a SWF to load a SWF. Any ideas?...
Any ideas on how to tackle this beast? I've read almost every article about preloaders but there is nothing that references preloaders created in Flash Builder.
I can't use Flash Professional or timeline. It has to be in Flash Builder.
So I tried to use the below tutorial and I wasn't able to actually get anything to appear when I test it. I'm getting an error at the "run()" function:
Error: Error #2136: The SWF file http://local.myproj.com/MyProject.swf contains invalid data.
at Preloader/run()[/Development/MyProject/src/Preloader.as:109]
at Preloader/onEnterFrame()[/Development/MyProject/src/Preloader.as:46]
References:
http://fortheloss.org/how-to-preloader-in-flash-builder-4-7/
I worked until two years ago with a lot of these things and I know I have a few good scripts in my databases, but you are talking about Preloaded & activated loading were as in a preloader it is out of the hands of say a visitor what he or she can or cannot do, and in using a button (possible of course) the visitor has a choice to download or not! From memory there was never really a lot published yet over years of using Flex Builder I have collected some good AS3 scripts and modified them (including a progress-bar - but without time Indicator) to download in web Apps. or FLEX AIR etc. with AS3.
The small problem would only be to adapt any of it from mx to fx depending on what FLEX Builder you use!
I used my scripts mainly to download high resolution Images, Calendars, SWFs etc. with up to compressed 22 mB! Anyway, if Interested I have to look up my FLEX databases & Application to get it to you! rgs Aktell
I'm very frustrated with Google DoubleClick's AS3 documentation. I'm not an advanced ActionScript coder and I have limited experience with streaming video, but I feel like their API is omitting a lot of information about how these classes actually work.
I'm attempting to load an FLV to play in an expanded unit. Their video component API shows how to control playback of a video, but it doesn't say anything about how to actually load an flv file through code into the component.
http://www.google.com/doubleclick/studio/docs/sdk/flash/as3/en/com_google_ads_studio_video_VideoPlayer.html
I found a controller API, but I have no idea how a "controller" works, or what it is, and the API doesn't explain anything outside of vague general information. I assume the controller needs to be somehow associated with the video player component, but there's nothing anywhere on Google that explains this in any form.
http://www.google.com/doubleclick/studio/docs/sdk/flash/as3/en/com_google_ads_studio_video_VideoController.html
So, in conclusion, what I want is simple. I want to programically load an flv file into a video component on the stage, and have it play. I feel like this is a simple thing to do. I can do this with netstream objects and regular means, but Google has explained nothing in it's API on how to achieve this in studio rich media, and I have no idea how the inner workings of it's components function. Can anyone tell me how to achieve this?
For using video in Studio, you use either the basic or advanced video player component, and component inspector to specify your video, then upload all your assets.
You can literally browse through hundreds of templates, including filtering for features like video, and choose one that best fits your needs along with documentaion here.
http://www.richmediagallery.com/resources/template-database
Basic video overview
https://support.google.com/richmedia/answer/1719810?hl=en
I could only add 2 links to my answer above
Here is the AS3 API for video
http://www.google.com/doubleclick/studio/docs/sdk/flash/as3/en/com_google_ads_studio_video_VideoPlayer.html
And the one for video player advanced
http://www.google.com/doubleclick/studio/docs/sdk/flash/as3/en/com_google_ads_studio_video_VideoPlayerAdvanced.html
The flash player has a little window that can be opened (similar to flash->settings) telling the user to update the player if the movie loaded is for a more recent version. How can you instruct the player to do this? ITV have managed it with their catchup-tv player.
Context: I am allowing users to copy flash into their PowerPoint presentations and would like to tell them to update their flash player if necessary. I am not embedding a web page in the power point so no JS can be run for checking etc (because I know this is not necessary).
Thanks in advance
For getting the current version of flash:
var version:String = Capabilities.version;
I don't know what ITV has done, but I don't know of any way of forcing the player to show that box, although it may do it automatically.
EDIT:
I just found a complete blog post that answers this.
There is no way to force the window to open itself. It's a user defined setting:
Have a look at the Security class. I have used it in some Flash to prompt users to increase storage limits. The panels that you can show are found in SecurityPanel. However, this may not be the way to prompt for outdated Flash version. (If you are looking to customize these panels, that is off limits.)
You can actually test the browser/Flash version in Javascript, so there really is no point in loading Flash to tell the user to upgrade Flash.
Let's say the sound input is either an embedded mp3 file or the microphone.
Is there an example of how to make it sound demonic and creepy, or like a radio transmission from the battlefield in actionscript-3 dynamically on runtime.
Reference:
http://www.youtube.com/watch?v=JAY88WH0FcU
As far as I know, you simply can't with the microphone, unless you first send it to a server.
With an audio file (embedded or not), you can distort it by playing with its bytes (ref), but its not at all a trivial task (I'm not aware of any library for "easy" sound processing).