To calculate Header size for an audio file.

HI ALL
Iam displaying the wave form for an audio file opened(.wav, .au ...etc) and doing any edit operation (cut for example) my waveform is shown with extra header (bytes) added to this wave form, i want to get rid of this. That's why i want to calculate the Header Size, which i heard that header size is not constant for all the files(even same two .wav files).
Any Ideas will be appreciated.
Thanks
kalpana.

find the documentation for the .wav file format :P

Similar Messages

  • Can't set parameters for embedded audio files using css

    I'm embedding numerous audio files in Dreamweaver CS3 using
    the <embed> tag. I'm using CSS to control the box size and
    other attributes relating to how the file displays on the page, but
    I'd also like to set the parameter "autoplay" to false, and
    controller to "true," for all of the audio files. I've been doing
    this individually for each file (very time consuming), because I
    can't figure out a way to do it with CSS. Is there a way to set
    those parameters in CSS and apply it to all files?

    .oO(teachAA)
    >I'm embedding numerous audio files in Dreamweaver CS3
    using the <embed> tag.
    >I'm using CSS to control the box size and other
    attributes relating to how the
    >file displays on the page, but I'd also like to set the
    parameter "autoplay" to
    >false, and controller to "true," for all of the audio
    files. I've been doing
    >this individually for each file (very time consuming),
    Search & replace exists.
    >because I can't figure
    >out a way to do it with CSS. Is there a way to set those
    parameters in CSS and
    >apply it to all files?
    No. CSS is for presentation, but these parameters belong to
    the HTML and
    have to be written there.
    BTW: The 'embed' element is invalid HTML. If you care about
    valid markup
    and your site doesn't have to be compatible with really old
    browsers
    like NN 4 or IE 5.5, then you should use the valid method
    using 'object'
    elements.
    Micha

  • Maximum File Size for a Captivate file before the graphics begin to get replaced with rectangles

    I have Captivate 6
    I published a 39 slide file with audio to an .exe.
    It was 130 mb.
    The first part of the course was fine, but when I got to slide 20, the graphics were replaced with a bright red rectangle.
    What is the maximum file size before this happens?
    (I ended up converting each audio file to mp3. That reduced the file size to 88 MB)

    That red rectangle is usually due to the slide needing to be set to High Quality 24bit.  I don't believe it has anything to do with the filesize.

  • Maximum input payload size(for an XML file) supported by OSB

    Hey Everyone,
    I wanted to know, what is the maximum payload size that OSB can handle.
    The requirement is to pass XML files as input to OSB and insert the data of the XML files in the oracle staging tables. The OSB will host all the .jca,wsdl, xml, xml schema and other files required to perform the operation.
    The hurdle is to understand, what is the maximum XML file size limit, that OSB can allow to pass through without breaking.
    I did some test runs and got the following output,
    Size of the XML file:  OSB successfully read a file of size, 3176kb but failed for a file of size 3922kb, so the OSB breakpoint occurs somewhere between 3-4 MB, as per the test runs.
    Range of number of Lines of XML:  102995 to 126787, since OSB was able to consume a file with lines (102995) and size 3176kb but broke for a file with number of lines (126787) and size 3922kb.
    Request to please share your views on the test runs regarding the OSB breakpoint and also kindly share the results, if the same test has been performed at your end.
    Thank you very much.

    Hey Everyone,
    I wanted to know, what is the maximum payload size that OSB can handle.
    The requirement is to pass XML files as input to OSB and insert the data of the XML files in the oracle staging tables. The OSB will host all the .jca,wsdl, xml, xml schema and other files required to perform the operation.
    The hurdle is to understand, what is the maximum XML file size limit, that OSB can allow to pass through without breaking.
    I did some test runs and got the following output,
    Size of the XML file:  OSB successfully read a file of size, 3176kb but failed for a file of size 3922kb, so the OSB breakpoint occurs somewhere between 3-4 MB, as per the test runs.
    Range of number of Lines of XML:  102995 to 126787, since OSB was able to consume a file with lines (102995) and size 3176kb but broke for a file with number of lines (126787) and size 3922kb.
    Request to please share your views on the test runs regarding the OSB breakpoint and also kindly share the results, if the same test has been performed at your end.
    Thank you very much.

  • Play back for Archived audio file

    First of all, forum users, please pardon my ignorance with Documentum...my first experience with this after many years in SAP.
    I don't see any posts or articles on this subject.  I'm attaching a WMA file to Documentum.  I need to be able to play that back, using the user's PC player, in this case Windows Media Player.  Has anyone seen documentation on how to call media player from frontend services and pass the audio file, or can you suggest the "best practice" for this?
    My PDFs display easily using ARCHIVOBJECT_DISPLAY, and I suppose I expected that FM to decide how to handle the file, but it seems to work only for PDFs, so far, for me.

    Found way to do...
    read file back from documentum
    download to desktop
    call frontend services execute.

  • Calculate database size for a particular company code

    Hi Experts,
    We have 30 company codes in our FI production system. So to plan another new company code to be deployed into the system, we need to know exact capacity (database) of the previous company code that we already deployed. Kindly let me know whether it possible to calculate the database size for a particular company code in a ERP system.

    >
    Kalyan Kumar Bandlamudi wrote:
    > Hi Experts,
    >
    > We have 30 company codes in our FI production system. So to plan another new company code to be deployed into the system, we need to know exact data capacity (database) of the previous company code that we already deployed. Kindly let me know whether it possible to calculate the database size occupied for a particular company code in a SAP system.
    Its not possible to calculate data size based on company code.
    By creating company code It will not occupy much space. Depends on your posting documents for particular company codes.
    Thanks
    Siva

  • Creating a Volume Control Bar for multiple audio files

    I'm fairly new to Flash and am developing a project with a
    series of frames that contain unique movie clips. Each of these
    frames are accessible through a chapter based menu as well as being
    viewable straight through as a regular movie. I've just added the
    audio for each "chapter" / frame that are all unique from one
    another. I'm having a problem with creating a volume control bar
    that will affect all audio throughout all frames from the single
    control bar on the general skin/interface that these chapters work
    out of. (Using Flash 8)
    I developed a sliding control bar, which works but does not
    affect the volume in any way. Is there something wrong with the
    following coding that I'm using? (The control bar is made up of a
    button nested in a movie clip and the action is being applied to
    the mc. The bar/line to follow is 60px long and the control is to
    move horizontally while the increase corresponds to increase in
    volume. The original code was for a 100px line from a macromedia
    tutorial that I adjusted to be 60px) Any advice on best practice
    for creating a volume control bar would be greatly appreciated! (I
    currently have all of my corresponding audio files on separate
    layers, should I be placing these within a mc rather than just
    having them on the main timeline?) Thank You!!!!

    Answering my own question.....
    Each individual swf has the code...
    var my_sound:Sound = new Sound();
    my_sound.loadSound("someSound.mp3", true);
    my_sound.setVolume(50);
    Code on Shell/main slide....
    //SOUND OBJECT
    var soundtrack:Sound = new Sound;
    soundtrack.setVolume(50);
    //END OF SOUND OBJECT
    //GLOBAL VOLUME CONTROL
    var nVolCheck:Number;
    volSlider.volBall.onPress = function():Void {
    this.startDrag (false, 0, 0, 75, 0);
    nVolCheck = setInterval(updateVolume, 150);
    volSlider.volBall.onRelease = function():Void {
    this.stopDrag ();
    clearInterval(nVolCheck);
    function updateVolume():Void {
    var vol:Number = (volSlider.volBall._x)*2;
    soundtrack.setVolume(vol);
    //END OF GLOBAL VOLUME CONTROL
    my bar is 75 pixels in width and the volume is being
    increased by 1.5 at its maximum.

  • Unable to locate a default player for iTunes audio files in Windows Vista

    I previously owned a Compaq and saved my music in an external storage and worked perfectly. I then purchased a HP with Windows Vista and now am having problems with iTunes. The new computer indicates that iTunes has detected that is not the default player for audio files. It gives me a selection of file extensions, "iTunes music database files", "iTunes music store URL", "M3U Audio Playlist", "MPED4 Audio Files", and others in Windows Media Player. Which one should I select? Thanks
    Joe

    I created a config file (which is very handy in deployment and debuggin) that contains the class name and other additional parameters that is available in the optionsMap inside the LoginModule.
    My Config file looks like :
    DatabaseAuthenticate {
    com.mahesh.research.jaas.auth.CLoginModule required debug=true database.userid="matest" database.password="matest" database.driver="oracle.jdbc.driver.OracleDriver" database.url="jdbc:oracle:thin:@den-dev-2:1521:trexdev" ;
    and i have an entry in the policy file
    grant{
    permission java.util.PropertyPermission "*" , "read, write" ;
    when running the application i specify the following VM Parameter.
    -Djava.security.auth.login.config ="file:/D:/Research/Jb6/JaasResearch/config/login.config"
    offcourse, the jar files in the classpath.
    When i Create a LoginContext and call its login() method, Everything works fine.
    you might wanna try this way and very important you need to specify all permission.
    if you are running under Security manager , try switcing on the debug option as -Djava.security.debug=access.failure that should give a hint on where the problem is.
    hope this helps

  • Viewing total duration for multiple audio files

    I need to be able to view 'total duration', when selecting multiple audio files, e.g. 10 audio files, total duration 42.03. I can't find a way to do this and so far, all I've been able to do is view individual audio file durations, then total them manually (which takes far too long, for what I need to do). I've previously been a Windows user, and this is instantly viewable in Explorer.
    I'm new to OS X, and really need to be able to do this for my job. Can anyone help??
    Thanks in advance, Marc

    Here's an image to explain better:
    http://img216.imageshack.us/img216/3241/playlisttotaltime.jpg
    However the total time isn't 100% accurate, because I believe iTunes is adding some extra seconds for the gaps in between songs.

  • Listeners for when audio file finish

    I'm using the AVTransmit2 sample java code to send audio to a client. Is there a way to tell when that audio file is finished? I want to set up AVTransmit2 so it randomly plays another audio file once the first audio file is finished. I looked into listeners but I couldn't really figure out how to set them up to work with what I have. I think I need a listener to tell me when the audio file is over, but I can't figure out where it should go and what to make the listener listen to. I wrote some pseudocode to describe what I think I need.
    **Pseudocode
    if ( player.listener = event.stop){
    x = rndnumgen();
    player(x);
    The main() method in AVTransmit2 has a line:
    AVTransmit2 at = new AVTransmit2(new MediaLocator("file:/C:/test.wav"),
                             ip, port, fmt);
    The problem is that I don't think AVTransmit2 has a player like the client does so I don't really know where to put the listener, if anybody has any suggestions I would be much obliged.
    Many thanks,
    Wade

    You need to implement a ControllerListener, register it on your Processor, and listen for an "EndOfMedia" event.
    It's important to note that once a Processor or Player have begun to process, you cannot change the DataSource they're using to play. You can't just tell the Processor "Ok, play this file now" without stopping it, and when you stop it, it'll kill the RTP session.
    [http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/Concat.html]
    In order to do what you're wanting to do, you essentially need to use the Concat example to create a DataSource that will act like a jukebox... when one song ends, the DataSource will switch over to start outputting the new song. This way, the Processor itself doesn't have to change DataSources, so you can maintain the RTP session continuously.
    It's also important to note that a specific Processor instance is probably only capable of processing the kind of data it's processing. If you're processing a MOV file, you probably couldn't use the same Processor instance to process an AVI file after that. So, it's important that all of the data that comes out of your jukebox DataSource is the same format, which you can do by embedding Processor's inside the DataSource. This is actually how the example has it implement, so I'm really just explaining why the example does it that way.

  • Fast Forward & Rewind doesn't work for long audio files

    I have loaded several mp3 files into the Pre via USB.  Some are 2+ hours long, some are a few minutes.  Fast forwarding thru the track doesn't work on the long files.  Holding down the fast-forward arrows will cause the audio to stutter in the same place, sometimes go BACKWARDS instead of forwards, and eventually it will go silent.  Pressing Pause, Play, whatever won't bring it back and ytou have to start the audio file over.
    Help, Palm!
    Post relates to: Pre p100eww (Sprint)

    Yea, the fast forward is way lame and pretty much...
    You get the idea.
    mark

  • Recommended Codec/Frame Size for Enhanced Audio CD

    I've just been asked to render a music video compatible with Enhamced Audio CD format. basically it's an Audio CD with a portion set aside for data where the video will reside.
    The file has to play in real time off of the CD.
    Anyone know of some rock solid, widely available codecs/recommended frame size that will work?
    The net seems devoid of good solid info on this.

    Having done some digging, it seems an .M4v H.264 encoded and running at about 640x360 should do the trick. Some indication on the packaging needs to specify QT 7 or above either Mac or PC to view the video side of the disc.
    This happily plays off a 8x CD drive.
    SVCD is old technology, superceded by DVD. H.264 is the way forward!
    Thanks.

  • Change block size for several log-files simultaneously?

    Hi,
    I'm using SignalExpress to record and analyze data.
    Sometimes I want to analyze the recorded data both for a short period of time and for longer time.
    (Imagine creating an average of every second first and then an average of every 10 seconds)
    Then I need to change all the log-files, and also the specific parts of the log-file. See attachment.
    I have sometimes up to 1000 log-files containing signals from 4 different modules, that makes 4000 adjustments to change from block size 10000 to block size 1000.
    Is there any way to adjust all the log-files block size at once?
    Many thanks!
    Anders Hansson
    Engineer
    Attachments:
    NI.JPG ‏95 KB

    Hi,
    Is't anyone else interested in a solution for this operation?
    I reported this to the NI-feedback service and they adviced me to report/request advice here to get a quicker reply.
    So...
    Best regards
    Ingenjör Hansson

  • How to calculate storage space for archive log files and database backups?

    Hi all,
    I have a 1.8 terabyte Oracle 9i database and need to plan for how much additional disk space I will need to perform nightly backups and for archivelog files. Is there a script or formula available that can help me estimate how much required disk space I will need to hold a days worth of archived logs as well as a nightly export dump file and a full hot RMAN backup on disk?
    Thanks!

    I'm not sure how to estimate the size of your backups, especially if you use incrementals. However, the space required for archive logs will be equal to the amount of REDO your DB generates. I would count the number of log switches per day with a query like the following:
    select trunc(first_time), count(*)
    from v$log_history
    group by trunc(first_time)
    I would then take the average and multiply this count by the size of your redo log files (assuming they are all the same size).

  • Custom size for MPEG-1 files?

    Hey everyone, I'm aware that compressor does not allow you to change the output size of a mpeg-1 file (it's locked at 320x240). However, does anyone know if there are plug-ins available that will allow you to do so? If not, can anyone recommend a good software package that will allow me to change the output size of an mpeg-1 file? Thanks!

    I have used Compressor to make an mpeg-1 video that is 640 x 480 and looks great (for mpeg-1). I use this for clients that use trial presentation software to show video depositions. Just go into you 'Library' folder in your home folder and open the Compressor folder in 'Application Support'. Look for the DVD/MPEG-1 folder and open it up. Inside there is a Compressor preset document 'MPEG-1 DVD'. Duplicate this document and give it a unique name like 'MPEG-1 640X480' and then proceed to open this doc with TextEdit. About halfway down, look for the video settings 320 x 240 and change them to read 640 x 480 and save and quit. Launch Compressor from FCP. Once you've imported or selected your project that you will be using with Compressor, you can click on the setting button that reveals the pop-up settings and the preset that you created should be listed at the bottom of the preset list. Select this preset and away you go. Good luck.

Maybe you are looking for