Can JMF capture audio from sound card?

I want to know if JMF can capture sound/audio from the sound card. Until now we have been capturing audio from microphone. but is there any possibility of capturing audio from sound card using JMF.
The audio captured from the sound card is to be streamed using JMF/RTP API.

Dear seniors,
i have tried to display my audio file as a graph as
x axis being the Time and the y axis beeing the frequency/pitch.
look at this post, i have mentioned all here...
http://forum.java.sun.com/thread.jspa?messageID=3073027&#3073027
is it possible to display as i desired?
wht the audio stream has? is it frequency or pitch?...
pls do give me some tips on that...
thanx in advance
-Munas.

Similar Messages

Capturing audio from sound card

Hi everybody, I need to record the output from my sound card, I've investigated and I've just found how record sound from the microphone and I don't need this ..... I hope somebody helps me ...
thanks

Dear seniors,
i have tried to display my audio file as a graph as
x axis being the Time and the y axis beeing the frequency/pitch.
look at this post, i have mentioned all here...
http://forum.java.sun.com/thread.jspa?messageID=3073027&#3073027
is it possible to display as i desired?
wht the audio stream has? is it frequency or pitch?...
pls do give me some tips on that...
thanx in advance
-Munas.

Capture audio from sound card

Is there a way to capture the sound from a sound card, but
not the microphone?

Please see this post for response.
Moved discussion to the Desktop Development forum.
Chris

Audio capture (recording) from sound card doesn't work

I have a Asus Xonar DS sound card that uses CMI8788 chip, AV200 kernel driver and snd-virtuoso kernel module. The card is recognised on installation (i686) and there are no issues with the sound output.
This is a new installation to try to fix the (lack of) recording problem. I know the card can be used to capture sound being played from a web browser, Youtube and internet radio, as I previously had it working with audacity, gnome-recorder and mhwaveedit, but some months ago, after an upgrade it stopped working.
Alsamixer shows the card as AV200 and I have toggled all the capture options and raised levels to no avail.
The card is not broken as the capture works fine on Kubuntu and even Win7. I have tried pasting asound.state from Kubuntu but there was no diference.
Does anybody know a good troubleshooting guide that deals with the capture side, not output.

"volume: can't open /dev/mixer " is for the users who use OSS so there; you should find out what uses OSS and change it if it is possible and not solely on oss.
and the error I am having is because I defined the specific software to hwd:0,0. so what i should do is to check my softwares and set the audio output to "default"
So in another word use you sound card and in output option of your sound card choose "default over hwd:0,0"

Stream audio from sound card input thru network

Good Day:
I have an application where I need to access instruments at a remote location. Command/Control of the instruments is not a problem, but I also need to stream the audio present at the remote system's sound card thru the network connection. Any suggestions on how to accomplish this via LabWindows?
Thanks in advance for any replies.
-Ed

Hi Ed,
First, I was wondering, how do you get the audio from the sound card? Is it from a LabWindows program? I've never done that. Second, I was wondering how do you play the audio on the remote machine? Is that through a LabWindows program? I've never done that either.
But I was wondering if just a remote PC app would do the job. Like admins use to take over your PC from there desk and fix problems. I assume they have these that send the audio thru the net as well as the screen. Then on the radio's PC you just need a LabWindows program to control the radio and some other app to play sound from the sound card input to the local speaker. Then the remote PC app would magically transfer the screen and audio from the radio PC to the remote PC.
Otherwise, I can just say that to stream the audio thru the net, after the Radio's PC gets it off the sound card somehow, I would just set up two TCP servers on the remote PC, one for audio and one for the commands/control. When the remote PC client connects to the audio server the audio server would just start sending audio data to the client. The client would receive the data and put it in a big buffer to handle network speed variation. Let the buffer fill up to like a second or more worth of data before having anothe function/thread read the buffer data and give the data to the client PC's sound card. Big problem is that the client PC's sound card will alway's consume the data at a slightly different speed than the servers sound card produces it. Different clocks running at slightly different frequencies. So the client function that reads the audio buffer to give it to the sound card must play games. If the buffer is shrinking over time then it has to create extra samples to give to the sound card, just duplicating a sample every 100 samples or whatever. If the buffer is growing over time then it throws away a sample every 100 sample or whatever. So it's kind of a challenge to manage the buffer with the variable speed of the net transfering data and the two different rates of producing and consuming the audio data.
LabWindows has the TCP server create and client create functions so that's pretty easy. The harder part is that you probibly want to set the Radio's PC to a fixed IP address so that you can connect to it without worrying about domain names and such. Then the two TCP ports that the LabWindows uses for command and audio might need to be setup in all the routers to let you establish a connection. Your IT guy's can answer that.
PS. you can play around with this suff on one PC by using the RegisterTCPServerEx function and setting the local host address to "localhost", or "127.0.0.1" on one LabWindows project and using the corresponding ConnectToTCpServerEx with "NULL" as the server host name on another LabWindows project. This creates a virtual TCP connection on the same machine. This does not duplicate the different audio clock issue I talked about above.

Using JMF to capture audio from a JAR

Hi
I have a working application that captures audio and does some other stuff with it. The problem occurs when I export it as a JAR file - it can't find any capture devices. I have deduced that the reason for this is that it can't find the jmf.properties file that's in the lib folder along with jmf.jar. So, is there a way that I can make it find the jmf.properties file? I've tried putting it in the manifest and including it in the JAR itself but unsurprisingly that didn't help.
Thanks in advance...
Rob

You can't use iDVD for that, but if you're willing to jump through a number of hoops, search the forum for threads about editing DVDs. Once you have ripped and converted the video file, you can extract the audio from that with iMovie (if you converted it into a DV Stream file).
John

On iMovie how can you mute a section of the sound track so you can hear the audio from the video clip?

.

Hey,
If you double-click on the soundtrack you can open it up in the inspector tab and lower the soundtrack so that you can hear the audio from the video clip.
A great resource for finding answers to questions like this is http://www.imovietutorialhelp.com
You can ask questions just like these and they will be answered for you. If you need a tutorial video made or anything like that, you can go there as well and ask for a video to made as well. Check it out.
If you still have questions on how to do this, they can help you for sure.
I may receive some form of compensation, financial or otherwise, from my video or link.

Capturing Audio from DAT

Hello,
I'm trying to capture audio from a DAT deck (Tascam DA-20) into FCP HD by routing it through my JVC BR-DV600U DV deck (RCA output from DAT, RCA input to DV deck, Firewire into FCP).
The DV deck's input is set to line-in, and the audio is being routed through (audio meters on DV deck mimic those on DAT deck, and I can hear the audio through the headphones jacked into my DV deck).
However, when I try to capture the audio on FCP, I am unsuccessful, prompting the following window from FCP: "Error: Final Cut Pro HD was unable to read the movie file just captured."
Now, I use the same set up I described above to capture footage from my Beta deck into FCP with no problems (route Beta signal through DV deck and firewire it into FCP). This leads me to believe that perhaps the glitch lies within my Capture Presets.
At first, I tried to capture the signal as an Audio-Only DV NTSC 48 Khz/Non-controllable device. After that failed, I tried to create my own capture preset, but am not sure it will make a difference, as the only input choices I am given are DV Audio, Built-In Audio, and None.
Any suggestions?
Thanks.

Why not capture the audio content outside of FCP, check the sample rate for 48Khz/16-bit, convert if necessary, save as an AIFF file, and then import that resulting sound file into FCP?
Any good audio app, including STP will do captures.
You are probably going to need to do some cleanup on the audio anyway before you use it, so why not just use an audio app to do it beforehand?
Besides, if you have an audio device (PCI card or Firewire device) in your Mac, you can use the S/PDIF port for your connection to the DAT and do a digital transfer when you import.
As I understand the way you are doing it now, you are taking digital content from the DAT, converting it to analog for the connection into your deck, and then re-converting it into digital when you capture it back into FCP.
One big advantage of digital audio (and video) is to avoid generation loss and added noise during transfer if you go D-to-D.
If you don't have an audio card or Firewire A/D audio I/O device with S/PDIF ports in your Mac, then see if you can find a friend who has one and can do the transfer for you. Then he can give you the file on a CD-ROM.
That's what I'd do.

Satellite L50-A-19N can't play audio from multiple sources

I can't play audio from multiple sources. This is very annoying when I have 2 youtube videos playing, if I start playing something on the media player, there is no sound on media player, it's the same when I have 2 media players open and 1 youtube video playing, youtube video doesn't have sound..
It goes away when I plug out my headphones..
I already have all the latest drivers, last DTS driver update was in 2014, sound update this year's february..
25/02/14
DTS Studio Sound
DTS Inc.
Windows 8.1 - 64 Bit
1.01.2700
I don't know if this makes sense, but I got newer DTS sound driver which I found, It's not my laptop model, but they all seem to be the same - v1.1.88.0
I uninstalled DTS software and still had the same problem, so it's not affecting sound driver in any way..
10/02/15
Sound Driver
Integrated Device Technology Inc.
Windows 8.1 - 64 Bit
6.10.6491.0
IDT audio driver has newer release date, but the driver version is the same as the 2013 one..
Why are toshiba releaseing old driver as 'NEW' ?
2nd is my speakers advanced settings, nothing changed when I disabled "Allow applications to take exclusive control of this device"

I see that the option called “give exclusive mode applications priority” has been checked.
Usually different applications and programs can access the sound card simultaneously.
For example: you can hear the sound in game, while you can run your own music via an external player.
This is prevented with these options “give exclusive mode applications priority”.
Maybe you should disable (uncheck) this option to prevent the different applications for using this exclusive mode stream.
I did it for my DAC. I set the DAC for exclusive mode. Once my audio playback software starts to play music, no other software is able to share the DAC.
However, I use Win 7 and Realtek sound driver… It’s another configuration.
So it’s not known to me if your issue is related Win 8.1 system or maybe limitation of sound driver… it could be also possible that one of your sound applications don’t allow multiple sound streaming.

Capture Audio from Mic

I am new to Java and need to know where to start with developing a Java app that can capture audio from a pc's mic, convert it to mp3, name the audio, and store it in a directory of my choosing. Additionally, I'll need an interface to that audio app that can receive function calls and args from a windows-based application.
Can you point me in the right direction- sample code if possible.
Thanks,
Jeff

I have the same problem. There doesn't seem to be any sample code for capturing an audio recording with JMF! I have browsed the web, the usenet groups and the (physical) library. It's almost like they try to keep it secret :/
There is plenty of information on how to use the JMF player, though.

Satellite L-50 can't play audio from multiple sources

I can't play audio from multiple sources. This is very annoying when I have 2 youtube videos playing, if I start playing something on the media player, there is no sound on media player, it's the same when I have 2 media players open and 1 youtube video playing, youtube video doesn't have sound..
I already have all the latest drivers, last DTS driver update was in 2014, sound update this year's february..
25/02/14
DTS Studio Sound
DTS Inc.
Windows 8.1 - 64 Bit
1.01.2700
I don't know if this makes sense, but I got newer DTS sound driver which I found, It's not my laptop model, but they all seem to be the same - v1.1.88.0
I uninstalled DTS software and still had the same problem, so it's not affecting sound driver in any way..
10/02/15
Sound Driver
Integrated Device Technology Inc.
Windows 8.1 - 64 Bit
6.10.6491.0
IDT audio driver has newer release date, but the driver version is the same as the 2013 one..
Why are toshiba releaseing old driver as 'NEW' ?
2nd is my speakers advanced settings, nothing changed when I disabled "Allow applications to take exclusive control of this device"
Attachments:
audio.png ‏6 KB
test2.png ‏7 KB
specs.png ‏16 KB

Can you check the full model and part number from the laptop?
- Peter

How can I record what the sound card is outputting?

I have an app. that I need to be able to capture what the
sound card is outputting. That is I want to record anything that plays
from the sound card. I don't want to
have to route the speaker out to the mic in. Is there a way to
"capture" the sound as it is being played?
Thanks
Bob

As I understand you would like to record the sound (wave, midi, others...) generated by a third party application without a cable loop between soundcard output and any soundcard input (mic, line, aux).
Have you already tried to set the record input on the recording control panel of Windows to stereo mix and to use any standard labview vi (eg: snd read waveform) for recording?
Tomi
Attachments:
Setting of record input.png ‏59 KB

KT4 Ultra, I can install or detect the Sound Card.

I have a KY4 Ultra, model MS-6590 (v1.X), G52-M6590X6.
I can install, or detect the sound card. In the manual I found an option to enable or disable the Audio Controller, but in my MOBO, I can´t find this option.
The Windows 98SE can detect the Multimedia Card, and I tried to install manually with the "Drivers CD", but in the begining of the instalation, appears a message saying that there can detect the Sound Card.
What can be that ?

Quote
Originally posted by maesus
Do you mean in your MOBO as in hardware? The option to enable/disable the audio controller is inside the BIOS settings. Press DEL when you see the POST screen should lead you to the BIOS settings.
Where in the BIOS? I certianly cannot find it on my 6590 v4.0 board.

Capturing audio from telephone for use in FCP

My requirement is quite specific, and so far none of previous posts seem to answer my question. So...
I'm looking to capture audio from my telephone for use in FCP. It won't be a telephone conversation, but a voice text. In other words, an SMS sent to a landline. The audio is saved as a voice message on the answer machine. My phone / answer machine is fairly basic - it has a speaker and the only ports it has is for power and the telephone line itself. I have tried a very basic method of playing the message on speaker and capturing it on a mini DV - but that results in too much audio edit to get it to sound acceptable. My Mac is a G5 and I have the full FC studio, but just not sure of best way to get audio onto the Mac without losing too much of the sound quality.
Any suggestions?
Many thanks all...
Kirsten
iMac G5
iMac G5

you need a telephone audio interface like the products made by the fine folks at gentner, telos or jk audio. i have a celltap from jk audio, works very very well. http://www.jkaudio.com/celltap.htm

Capturing audio from microphone and save it to a file

Hi!!
I'm searching for a code using JavaSound that allows capturing audio from a microphone and save it to a file.
thanks in advance and sorry for my English

Hi,
Check out these links.
http://developer.java.sun.com/developer/technicalArticles/Media/JavaSoundAPI/
http://java.sun.com/j2se/1.3/docs/guide/sound/prog_guide/chapter5.fm.html
Also this is a very good site for finding similar issue as yours.
http://www.jsresources.org/examples/audio.html
Hope this helps.
Regards,
Roopasri Vittal
Developer Technical Support
Sun Microsystems
http://sun.com/developers/support

Can JMF capture audio from sound card?

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