Encoding multiple audio streams?

Can iDVD see and encode multiple audio streams for a single movie? Maybe this is asking too much but perhaps I've overlooked something...

The norm is to export video and audio out of Premiere Pro separately. Doing this, you will end up with one video file and multiple audio files. Bring them into Encore and add them to a timeline.

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FLME to stream multiple audio streams

Is it possible to stream multiple audio streams together with one video stream using FLME.
I need to create a live streaming application that should be available in many languages. My idea is to send 1 video stream + n * audio streams.
Any ideas are appreciated.

FMLE is not able to stream multiple audio tracks.
Perhaps a third party encoder is able to do, but the problem is I think the playback
cause adobe´s pluggin does also not support multiple audio tracks.

Home Theater need. Multiple Audio Streams from 1 card or possible to use 2 car

I currently have 2 SB Li've's installed and a SB Audigy in the box.
I would like to be able to send different audio out to different devices. I need to send audio from a game interface called MAME 32 to a speaker system connected to the PC. I also use this PC as a home theater PC and want to send audio from my DVD playing software out to my TV(in analog stereo mode) and/or to my receiver(in Dolby Digital mode using the digital connector).
I would like to be able to run these seperatly without having to go into the Control Panel and switch the default sound card like I am doing now. I do not need to run them at the same time.

Bummer. Are you guys working on something that might have this capability? Seems to me that the closer we integrate PC's into our entertainment systems the more need we will have for the ability to do multiple audio streams, i.e. MP3's to the living room. DVD movie audio to the family room, XM radio classical station to the kitchen for mom etc..
Intel is offering this as an onboard solution that has the ability to do at least 2 different streams.
http://www.intel.com/design/chipsets/hdaudio.htmMessage Edited by relay on 0-26-2004 05:02 PM

Troubles with Multiple Audio Streams.[ca0106]

Hey everyone.
I have a few issues on my hands that i just cannot seem to get a strait foward answer.
First off, i have a Sound Blaster Live! 24bit pci sound card. Sound plays perfect as well as surround sound.
My issue is that i cannot get mulitiple things to play sound at once. All of the correct modules are loaded just fine and working well. I do believe that when i was using gentoo and could play multiple audio streams, i had alsa built into my kernel.... in arch i dont believe i do.
Im trying not to build my kernel all over again in arch because i think its something in arch i may be doing wrong...
Thanks
Anthony
Last edited by anthonyclark (2008-04-02 13:30:58)

Thanks for the reply.
I know for a fact im using ALSA. Since i made that post, ive been doing as much research as possible. I found on ubuntuforums, some dude posted some configs for his ca0106 sound card. I tried them and they take me to the same fork.
Surround Sound .... or .... Multiple audio streams.
So the big questions is, is it possible to have both? And would compiling a new kernel with ALSA and support for my card make a difference?
Thanks!
anthony
Last edited by anthonyclark (2008-04-02 15:25:48)

Multiple Audio Streams?

I'm wondering if there is an application that will allow the computer to route multiple audio streams out of my Mac Pro. or- if anyone knows how to create an easily switchable audio routing panel rather than going through preferences.
Eg. I'm playing Itunes (or hulu or netflix) through my audio line out through my Samsung TV thorough a speaker system to watch online content through the TV and I want to work on files on the computer at the same time, say edit video using FCP and routing that audio through USB speakers at the desk.
Being able to create multiple audio stream routing would be a HUGE asset for someone like me. Even if it's not possible, I would certainly love it if Apple would incorporate a quick switch selector in the pulldown menu for audio volume...
Thoughts? Anyone?
Thanks!

Thanks, the "auxillary effect" totally helped me stream itunes music to my iSight with soundflower....giving webcam streaming my system audio, which I couldnt do before without hearing anything....ugh so complicated! but this works!! Sometimes apple is so rediculous and I know there are more features they could build in.
Thanks!

Synchronization of Multiple Audio Streams

Hi,
I'm trying to synchronize several Audio streams during
playback and recording. Several questions I have and not sure if
actually feasible or how to best address :
1/ When playing back 2 audio streams, how can I ensure the
playback is full synchronized (<20ms difference) when client
receives the 2 streams in playback ? Basically trying to simulate a
mix-down with 2 // streaming. Ultimately wants to achieve this with
about 5 audio streams playing back and can't accept tolerate delay.
I suspect I need to synchronize the start of each stream so that
they all start together, but not been very succesfull so far.
Alternatively is there a way to mix-down 2 streams on server and
send back a 1 mixed-down audio stream ?
2/ More tricky I believe : If I playback 1 audio stream and
start recording a separate audio stream, I'm getting again
desynchronised. Later If I replay the 1 audio and the newly
recorded one, both are not anymore aligned. I suspect (but not sure
that the delay and desynchronization is introduced during the
recording but not sure and reason I asked first question...
If someone knows those answers or could provide some
direction of work.... I would greatly appreciate.
Thanks

When it comes to FMS streams, there really is no way of
accurately syncronizing streams. Since you can't keep data in
buffer when pausing the stream, and you have to rebuffer any time
you seek, it's impossible.
The only way I've been able to sync flv's is using
progressive download. With progressive, you can sync streams, but
the accuracy is limited to the keyframe interval of the flv files.
For example, if you have 2 keyframes per second, you can achieve
sync with 1 second accuracy. with 4 keyframes per second, you can
get the offset down to 500ms. If you make every frame a keyframe
(makes for a huge file), you can get frame accurate sync.
The theory is to build a class that monitors the time and
buffer length properties of your two streams, pausing and/or
seeking when needed to maintain sync.

Multiple audio streams for 1 video track

Hi I have a few different sountracks I want to use with one video asset.
I want to avoid duplicating the video track and putting a version of the audio in it.
If I have an Audio tab in my menus with music and lyrics, one with instrumental only and a dolby 5.1 surrond
how do i target the buttons to choose different audio as i click on the 5.1 let's say, it will choose to play stream #3 5.1 surrond.
Been looking in the manual but could't find anything.
Any help is appreciated
thanx
jm

Sorry about the links -:(
Anyway follow these steps and it should work (one approach, not difficult to do, I just wrote the steps in small bites )
Press F3 Key so we are looking at the same layout in DVD SP
1.) Make a menu with two buttons, label them Audio A and Audio B
2.) Make a Track (the "TRACK")
3.) Place your video on the video portion of the TRACK
4.) Place your Audio A on A1 track and Audio B on the A2 track
5.) Drop a chapter marker at the end of the TRACK (one should be at the begininng of the track by default)
6.) Click Add Story from the top Bar for the TRACK
7.) Name that story Story A, add the first Chapter Marker to the Story
8.) In inspector for Story A deselect/remove check marks for all audio except for 1 (uncheck 2-7)
9.) Duplicate Story A as Story B
10.) In inspector for Story B deselect/remove check marks for all audio except for 2 (uncheck 1, 3-7)
11.) Set Button 1 from menu to Story A, Button 2 story B
Note that this method will not allow toggling between the audio. A quick way to permit toggling is to do as above, but have both Audios (1 & 2) checked in steps 8 & 10
Create a script called PRESTORYA and set it as a prescript for Story B, with the following:
Set System Stream AU(Audio Stream 1)
Create a script called PRESTORYB and set it as a prescript for Story B, with the following:
Set System Stream AU(Audio Stream 2)
FWIW the links worked just now (downloads a zip file directly to HD, take a look in activity window in Safari, maybe there for you?)

MPEG with multiple audio streams

I have a dvd that has one video on it with 4 different audio options. The goal is to recreate the dvd with different menu's etc. I ripped the dvd with MPEG Streamclip. I played the ripped mpeg and it definitely contains all four audio streams. I then imported the mpeg into encore cs4 and it only shows the default audio selection, the other three are gone. I tried importing it into premier and the same thing happened. This seems like it should be pretty easy but maybe not.
Thanks for the help,
Kevin

Kevin,
First, welcome to the forum.
Next, I am shooting blind here, as I have never gone this direction. If none of this works, sorry. I only go the other way, creating what you hope to recreate.
Now, what happens if you rip the Audio in a Multi-track Audio editing program, like Adobe Audition? I would hope that it will rip each Audio stream as a stereo WAV (or as discrete WAV's if you have AC3 DD 5.1 SS). If this does work (remember, no guarantees), you should be able to separate these out, and then Import them into Encore.
I am sure that many other programs can do what Audition does, but that is my go-to Audio editor and know that it works well with both ripping from all sorts of muxed AV files, and will also handle Multi-track material.
Good luck, and please let us know if this works. Also, Neil Wilkes, a valued contributor to this forum, is the "Audio guru," and might well have better suggestions.
Hunt

Record multiple audio streams

Hello
I'd like to make a voice chat software that can record all
audio streams in one flv file. Is it possible with FMS 2?
Thank you for the answers:
Peter

Hello Peter,
Using the server NetStream object, create a new server stream
and give it a name, e.g. master:
ns = Stream.get("master");
Then start it recording with the instruction to append all
the new recordings:
ns.record("append");
Then call the play method of the NetStream with each new
publishing stream and a second parm of -1 to indicate live
recording:
ns.play("pubstream1",-1);
ns.play("pubstream2",-1);
When you want to stop recording call:
ns.play(false);
These are the basics. Post back if you need more.
Bill

Can Premiere Pro CC handle AVI files with multiple audio streams?

I have an AVI file with two audio streams and I am wondering if there's any way to access the second stream in PP? So far I can only get the first stream to play. I know I can extract the second stream in for instance VirtualDub, but it would be nice to not have to do that in the interest of an effective workflow.

Hello again Jim! Thank you for your reply, you seem to be working hard here on the forums! The info I have found from 2011 suggested that it wasn't possible then, but I was hoping maybe they added this feature.

Prevent Multiple Audio Stream?

Hello,
I used source code I found for a sound stream visualization
(By Peter Dehaan). I added a play and stop button, but when a user
clicks on play more then once it loads the stream multiple times. I
don't quite know what I should do to prevent this. Hopefully
someone can help a noob? thanks.

I took a better look at the code.
First of all, frankly, I don't like this approach very much
because it uses nested and anonymous functions. I strongly believe
that, with a few exceptions, it is a very bad practice for many
practical reasons.
I rearranged code to eliminate this.
Note that this code doesn't reload the sound but replays it
if it is at the end or restarts from the position it was paused at.
Also, I added some functionality for graphical representation
so that it doesn't create a new sprite if the sound was previously
loaded.
This code is not necessarily perfect - you probably will need
to polish some things.

Multiple Audio streams in dvd studio pro

Hi To keep it short, I have been providing clients with surround sound formats, Dolby ac3 & DTS .cpt   that are burned to their video projects.
   Now I would like to burn my own movies using DVD studio.
I can burn a disc with ac3 or .cpt no problem. I would like to include audio playback options selectable in the menu's of my discs for DTS & Dolby Digital 5.1.
    I am a new user of DVD Studio & would greatly appreciate any help or links to information that would help me with this task.
      many thanks

DVD SP is an authoring program, not an editing/compositing arena.
You need to go back to your NLE or an audio program to do this.
x

Compressor stops working at audio stream

I've been having some Compressor problems, which I think I have narrowed down, at least in this one instance to a corrupt audio file. I submitted an hour long self contained QT movie 2 nights ago, and it successfully encoded the MPEG 2 file, but stopped when it came to the ac3 file. I de & re-installed Compressor from the original FCP 2 discs, so I'm now running 3.0, on OS 10.4.11, on a G5 dual 1.8 machine.
So last night I submitted the same QT movie that had stopped compressing the night before, and it did the same thing again- successfully encoded the video stream, but NOT the audio. Compressor stopped working in exactly in the same place as it did the night before. This morning I used Jon Chappell's app Compressor Repair, and am up and running again, compressing another movie that seems to be working just fine.
But, I still have the problem with the particular movie with bad audio file. From another forum, someone had a similiar problem 3 years ago with a corrupted audio file. Which I think is what my problem is now, for at least one video I'm trying to encode.
So the questions are: How do you find the corrupted file, what do you do? How can I encode the audio stream for this file?
Of course I have a deadline for Monday, so any suggestions are most welcomed!
Thanks very much
Melinda

Try exporting a self contained QT movie which only includes the audio from your sequence. Set it to be "current settings"... will then match your sequence settings. If it exports OK, just put this file in the sequence for compression.
Micheal's solution is much the same actually as mine... When you use the sequence settings, the QT is nothing more than a QT movie wrap around the aiff.
QT is a container for media files of any kind actually.
Jerry
Message was edited by: Jerry Hofmann
Message was edited by: Jerry Hofmann

How to merge multiple live audio streams into a single stream in FMS?

I need to merge multiple live audio streams into a single stream so that i can pass this stream as input to VOIP through a softphone.
For this i tried the following approach:
Created a new stream (str1) on FMS onAppStart and recorded the live streams (sent throgh microphone) in that new stream.
Below is the code :
application.onAppStart = function()
application.myStream=Stream.get("foo");
application.myStream.record();
application.onPublish = function (client,stream)
      var streamName = stream.name;
      application.myStream.play(streamName,-2,-1};
The problem is that the Stream.play plays only 1 live stream at a time.As soon as a the 2nd live stream is sent to FMS then Stream.play stops playing the previous live stream.So,only the latest live stream is getting recorded.Whereas i need to record all the live streams in the new stream simultaneously.
Any pointers regarding this are welcome.
Thanks

well i tried this once for one of my scripts and the final conclusion is its not possible to combine two streams into 1.....how would you time/encode the two voices......there is no know solution to this in flash. If you continue on despite me and find a solution please post it so we can explain to rest of world.

How to stream multiple audio files over a IP network in one session

Hi everybody,
i am going to build an internet radio application as my next project. I thought of taking JMF and the RTP streaming for this purpose. But the problem i faced during the development was it plays only one audio stream in a session. The thing is i want to send more than one audio stream in a given RTP session and using a single port. What my radio does is simply play mp3 music all day long. How can i do this and what other tools that i should take. please reply ASAP. thank u in advance,
Thusira..

You'll need to implement what I call a "jukebox" datasource... IE, the DataSource changes what file it's outputting, but the Processor and RTP DataSink associated with it are unaware of the change... so they keep right on transmitting like nothing happened, but the actual file being outputted has changed...
http://web.archive.org/web/20080316203600/java.sun.com/products/java-media/jmf/2.1.1/solutions/Concat.html
The concat example calls it a "superglue" datasource and uses it to concat outputs to a file... exact same concept, except you'll want to use a queue you can append to dynamically rather than an array created at compile time... and you'll want to output to RTP instead of to a file. You'll probably also want your DataSource to stay alive waiting for the next thing to be enqueued rather than shutting down when it reaches the end of the list.

Encoding multiple audio streams?

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