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Thread: Audio Recording

  1. #1
    Registered User
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    Jun 2005
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    Audio Recording

    Hi,
    I am recording audio on nokia 6681 and saving it into a file. But the maximum size of the file which is being made is only 128.0 kb. Can anybody please tell me, whats the reason behind this.
    Thanks in advance.

    Regards,
    Piyush

  2. #2
    Registered User
    Join Date
    Jan 2007
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    25

    Question J2ME+Exception in Audio Recording in AMR encoding


    Hi all,

    I recorded audio in "audio/wav and audio/au format" using,
    code while recording,
    createPlayer("capture://audio?encoding=audio/wav"); and
    createPlayer("capture://audio?encoding=audio/au");

    now I want to Record Audio in AMR encoding....
    the code sniplet is as follows..
    For createPlayer("capture://audio?encoding=audio/raw");
    java.lang.IllegalParameterException is coming in Nokia device and
    For createPlayer("capture://audio?encoding=audio/amr"); and i tried
    createPlayer("capture://audio?encoding=amr")
    java.lang.NullPointerException is coming in Nokia device.

    so anything to change in createPlayer() while Playback the recorded audio?
    For "audio/wav and audio/au "(for which it is working fine in Nokia device),
    i wrote, Player p2 = Manager.createPlayer(recordedInputStream,"audio/x-wav");

    so please tell me the solution? how to check where that runtime exceptions r coming?

    Thanks and Regards
    ..
    Last edited by shreyasbellary; 2007-01-17 at 09:41.

  3. #3
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    25

    Question Problem in Audio Recording in AMR encoding...

    Hi all,
    Good Morning!

    Actually i was recording in AMR encoding on Nokia 3230, but it doesnt support AMR encoding..so i had done it on Nokia 6680.

    1. I recorded audio and played it back in AMR encoding, and in audio/raw encoding, i recorded audio but cant played it back on Nokia6680 device.

    first i m displaying the audio encoding formats that the specific device supports, and then which audio encoding, the user selects,

    i m recording and played it back in that audio encoding .
    for eg: for audio/amr, i m recording and played it back in audio/amr encoding.
    for audio/wav, i m recording and played it back in audio/wav encoding. like that for others..

    like that for audio/raw encoding, i m recording the voice but while playback it, audio/raw encoding will be selected. but it is not working in that.

    so which encoding to take to playback audio in audio/raw encoding?

    createPlayer() while playing the recorded audio...
    player = Manager.createPlayer(recordedInputStream,encoding);

    2. for Nokia 3230, it shows that.. supports.audio.encoding=audio/wav, audio/au, audio/amr, audio/raw.

    and if Nokia 3230 doesnt support amr encoding then why it shows that supports.audio.encoding=audio/amr for Nokia3230 device?

    hoping to hear from u soon....

    Thanks and Regards...

  4. #4
    Registered User
    Join Date
    Jan 2007
    Posts
    10

    Re: Audio Recording

    Hy!
    I'm a brazilian guy and don't speak english, but I will try... :-)
    I am reading your post in nokia forum about sound recording with java and i found problems in my jme application:
    Code:
    try {
    // Create a DataSource that captures live audio.
    Player p = Manager.createPlayer("capture://audio");
    p.realize();
    // Get the RecordControl, set the record location, and
    // start the Player and record for 5 seconds.
    RecordControl rc = (RecordControl)p.getControl("RecordControl");
    rc.setRecordLocation("file:/tmp/audio.wav");
    rc.startRecord();
    p.start();
    Thread.currentThread().sleep(5000);
    p.stop();
    rc.stopRecord();
    rc.commit();
    } catch (IOException ioe) {
    } catch (MediaException me) {
    } catch (InterruptedException e) { }

    in the wireless toolkit 2.2 it run perfectly, but in my phone (Nokia 6020 - MIDP 2.0 - CLDC 1.1)

    this code trows a exception:
    "javax.microedition.media.MediaException: Invalid locator: capture://audio"
    what is this?

    i think the problem is in "rc.setRecordLocation("file:/tmp/audio.wav");" but i'm not shure. do you help me with this?

    obs.: do you can send me your code?

    very very thanks,
    Last edited by zehdopulo; 2008-01-24 at 16:20.

  5. #5
    Super Contributor
    Join Date
    Nov 2003
    Location
    Bangalore , India
    Posts
    4,429

    Re: Audio Recording

    Hi zehdopulo! Welcome to Nokia Discussion Boards!!

    I have already posted a reply here
    http://discussion.forum.nokia.com/fo...ad.php?t=99661

    Please dont make multiple posts in same regard.

    Regards
    Gopal

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