Audio Playback Speed Control

Hi,
I am working on Flex based Audio Player. I want to change the
playback speed like 50% of the normal speed or 150% of the normal
speed. I did some research on flash.media package but couldn't find
anything useful. Anybody has any idea how we can control the
playback speed of mp3 files?
TIA
-Ghulam

I know the law, but thanks for the legal advice. Wouldn't it be curious to ask this question if I already possessed software that allowed keyboard commands for transcription purposes?
Right now, I'm using MPlayer X. ( A lousy, often unstable program). What appears to be keyboard command functionality  -- under AVS at the top of the screen -- does not function that way and,  even if it did function, is not fully what I need. I'll look further into VLC, but a preliminary look into it shows me a program more adapted for video applications. My experience has been that such software is not designed to meet my particular needs. The Adobe program is to EDIT audio. It is not designed to have the keyboard functionality one uses for transcription. This is exactly the problem I  keep running up against with several programs. I can do sophisticated sound editing, but I cannot do simple transcription functions -- keyboard commands to speed up, slow down, move back, move forward.  It is an incorrect assumption that an audio editing program would have those controls, in my experience.

Similar Messages

  • IPod on 3Gs previously had playback speed control, but it's now gone. How to recover?

    Running version 4.3.5 (8L1). iPod no longer shows email, scrubber bar, 30-sec repeat, or playback speed button. These were there a few weeks ago. Did they get dropped in an update?

    Performed full restore and resync.  It seems that restore pulled code off my hard drive -- could this be corrupt (low network traffic at that time)? Update says my phone is up to date.

  • Audio playback speed too fast

    Please help. After installing Security Update 2010-002 on Leopard 10.5.8 all audio tracks play several bpm faster. This is true for pre created tracks in Logic and playing tracks in Toast or using quick preview. All iTunes material is also affected. I also have a Snow Leopard partition which I haven't updated in any way and the problem exists there too. I'm using a late 2008 Macbook Pro. Any ideas? Best, L.

    Without actually looking at your system, I'd be hard-pressed to pinpoint the culprit. I don't even have a hunch. I could be a conflict between some third-party application/plug-in/login item/ and something else.
    The only thing I can suggest is this:
    1. Move the Preferences folder from ~/Library/ (that is the Library folder in your home directory) to the Desktop.
    2. Log out and log back in.
    Your familiar working environment will likely look very different from what you're used to, since Mac OS will recreate the missing preferences and use the default settings.
    Launch the applications that you experienced trouble with and test them out. Be prepared to reconfigure them, as they will likely launch in their default state. If everything works fine, you're going to have to add your old .plist files back one by one, logging out and back in each time.
    You can speed up the process by batch-adding back the .plist files that you feel have little to do with the underlying problem. (For example, iPhoto or iWork .plists are the least likely candidates to cause any problems, etc.) You're going to make a few educated guesses and learn a great deal on the way.
    I'm sorry I can't be more specific. Your problem is very unusual, and if I experienced it myself, I'd do exactly what I described above. At least, you were able to localize the problem to your user account.
    A few pointers.
    It's a good idea to keep the two Preferences folders open side by side, both set to List View. When moving your old preferences to the newly created Preferences folder, hold down the Option key (to copy them, rather than move). This will save you a great deal of time if you have to start all over again.
    Cheers.
    <hr />
    Ast A. Moore on YouTube

  • Change audio playback speed while transmitting via RTP

    Hi,
    Basically I want to be able to change the speed/tempo of audio in real time (like you can on a turntable, for example) from a file stored locally. My program currently plays the audio on the local machine and transmits this same audio via a live RTP stream. I intend to include a slider on the GUI that changes the speed of the audio (like can be found on a turntable or DJing programs).
    I am unsure if this would be possible, or how I would go about doing it. So far, I have found out the following:
    The setRate() method of a Player should do what I want but it doesn't always work (the rate 1.0 is only required to be supported). I only require my program to work with WAV files, and setRate() only seems to support a rate of 1.0 with this file type.
    One way of changing the speed is to change the sample rate (I don't care about pitch changes), but I don't think this can be done in real time with JMF. It is possible using a SourceDataLine or TargetDataLine with JavaSound; however, I believe I would firstly need to write code to feed data from a SourceDataLine to a TargetDataLine that an AudioInputStream can read from (as I don't think many systems, including mine, have a Mixer with both a SourceDataLine and TargetDataLine). If I did this, would I then need to do some processing to convert the sample rate of this AudioInputStream into the sample rate of the DataSources that are currently playing or transmitting data (I have a custom DataSource to go from AIS to DS, and so the read() method in this would possibly have to 'throw away' or duplicate samples to get the desired sample rate)? Would this solution be possible, or would there be a better solution?
    Thanks

    I have previously tried getting a FrameRateControl for a Player and a Processor, and I have just tried again, but the getControl() method always returns null. I have tried this with several WAV files. Is there any other way to change the sample rate in real time with JMF?
    For Java Sound, I already have code that lets me convert from DS to AIS and from AIS to DS. The problem is that I am unsure how to increase the sample rate in real time without using a SDL or TDL. But I think, if the AIS is reading from a file, the DataSource would have to read faster, or slower, from the AIS, and then do something with the samples to match the actual sample rate being used by the Processor in JMF. I am not sure whether this is anywhere near the right approach though, and I'm not sure how I could get the effect of changing the speed of audio without changing the sample rate of the Processor.

  • Audio playback speed/scrubbing without affecting pitch

    I have had this issue forever and have never found a workaround. In Final Cut Pro 7 you can use the JKL keys to toggle play forward, pause, and reverse. If you hit it several times it increases or decreases the speed. What I really enjoyed (probably the only thing in FCP 7 that I did like) was when you would fast forward at 2 or 4x speed the pitch of your file would not change. You would get some stuttering at higher speeds, but honestly I'm ok with that. In Audition and Premiere Pro if you fast forward the pitch increases. Gives you that chipmunk effect. Is there any setting, keypress, or any workaround that would enable me to fast forward while retaining pitch?
    I edit voices and I listen for key words or phrases said by specific people so when the pitch changes it can difficult to actually find the correct spot. Any help would be much appreciated.

    In Premiere once you're playing the clip in double speed you can press SHIFT J to pitch down. It's key stroke heavy and annoying for anyone that needs to scrubb at high speed, I edit documentaries so do it often, but it works. Not sure if the same is true for Audition.
    Let me know if you find something better. 

  • QT7 Playback Speed

    The audio playback speed setting in QT7 is a manual slider. I have been unable to discover either a keyboard shortcut or a menu setting that would allow one to precisely set the playback speed/pitch of an audio file (e.g. decrease speed by 10%). I have also noted that pitch changes cause stuttering in mp3 fiiles. This is critical because I am using QT/ iTunes for dance teaching and like to slow down the music at first. I used to do this with a variable speed cassette deck but was hoping to do it with QT. Would QT7 Pro help here?
    Thanks for any secret keyboard shortcuts or advice.
    15in PB G4   Mac OS X (10.4.3)  

    The additional audio controls appear when you are playing music and tap the now playing screen.
    The additional audiobook and podcast controls when you are playing _an audiobook or podcast_ and tap the now playing screen.
    In either case, tapping the screen while the additional controls are showing will hide them.

  • Changing Audio Book Playback Speed?

    I wasn't able to find where you can change the playback speed of Audio Books in iTunes.  Can someone point me to where this setting is?
    It's pretty easy on iPhone/iPod/etc... it's just a little button under the scrubber that allows for 1/2x, 1x, or 2x.  But I can't see the option in iTunes.  I'd assume iTunes on a Mac is capable of as much or more than the functions on an iPod/iPhone, but...  I can't find the button.

    In any case, if my Mac had problems, I'd send it in for service....!!!
    About your problem, I don't think that it depends on hardware.
    I'd check Live configuration and the SR of the audio files: you know, Live has so many features to modify speed and a lot of other parameters that bacomes easy to forget something.
    Try recording something with Garage Band so you will be sure if there is a real problem.
    cheers
    rob

  • Recording with audio playback slowed down 65% what speed do I need to speed the video back up to to get it into real time?

    Ive recorded a test video with audio/music playback slowed down 65% what speed do I need to speed the video back up to to get it into "real" time?
    If I'd slowed the audio playback down 50% I would make the video 100% faster.
    If I'd slowed the audio playback down 100% I would make the video 200% faster.
    So its obviously somewhere inbetween speeding up by 100-200%
    Sorry but its melting my brain today and I cant remember the calculation.
    thanks

    hey all
    Thanks for the advise on this. I will explain a little more what am have/am intending to do.
    I have used Audacity to slow the song down (Effect>Change Tempo)
    Audacity will allow me slow the original song down by up to 99% (Or anything in-between up to 3 decimal places)
    Unfortunately I am working to a time restraint of 12 minutes per clip (as my DSLR will only allow up to a 12 minute clip).
    The song at normal speed is 4 minutes long.
    Originally I slowed the audio down by 50% (Making the audio 8 minutes long), lip synced to it using a rasta blaster and recorded the video using my DSLR at 720p 50fps.
    I then imported the video and audio I had been lip syncing to into FCPX.
    I sped up the video by x2 (equivalent to speeding it up 200%)
    Retime>Fast 2X
    Layered the PROPER normal speed audio back over the top and all was fine.
    Test video complete.
    (You can ignore the 65% slowed down audio I mentioned earlier if you like, that was just an example of a slower than 50% audio test)
    Firstly what I really want to do is to be able to slow the AUDIO down as much as possible (But still within the restraints of only being able to adjust FCPX retiming within a whole 1 percentage in the final video edit), but have the AUDIO of the song as near to/under 12 minutes as possible.
    I will then re-record the video again to this new slowed down audio.
    Secondly I will speed up the video from 12 minutes to 4 minutes.
    Thirdly I will layer the correct 100% Normal AUDIO on top.
    The FINISHED video should then look like everyone is wizzing around at high speed but the guitar playing/lyrics look like they are being played/sung at the normal speed.
    Whatever happens (due to the constraints of FCPX) I need the calculations to work so that FCPX is retimed exactly to a whole 1% for the final video to sync up correctly.
    So what I need to know in a nut shell is:-
    What calculation do I use to work out the percentage to slow a 4 minute song down to a 12 minute song?
    What calculation do I use to work out the percentage of how much I need to then speed the 12 minute video up to turn it back into a 4 minute video?
    My mind is melting

  • Controlling Playback Speed on iPod Mini

    I am using iPod to listen to some language lessons (these are not audiobooks, but merely a copy from a language CD uploaded to iTunes+iPod). Unfortunately, the lessons feature dialogs that are way too fast and I would like to slow them down. Is there a way to slow down the playback speed of a song on iPod?

    Do the songs play OK in iTunes on the computer?
    If so
    - Reset the iOS device. Nothing will be lost      
    Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
    least ten seconds, until the Apple logo appears.
    - Unsync all music and resync
    - Reset all settings                            
    Go to Settings > General > Reset and tap Reset All Settings.
    All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
    - Restore from backup. See:                                               
    iOS: Back up and restore your iOS device with iCloud or iTunes      
    - Restore to factory settings/new iOS device.                       
    If still problem, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
      Apple Retail Store - Genius Bar

  • User control of the playback speed of an eLearning

    Is there any way for the user to adjust the speed of an eLearning? T...he question has to do with accessibility requirements. If a user needs to slow down or up the playback speed similar to how you may adapt volume - can that be done in a Captivate project? Thanking you in advance!

    Thanks! I totally agree.
    We already use interactive objects to allow users to move forward at their own pace. Yet this was a specific request and I could not find anything supporting it in Captivate. Therefore I wanted to double-check with the community.

  • Playback speeded up

    I have an iTouch. I imported a cd with meditations on it into my computer. They all play just fine. I created a playlist on my iTouch, and put them into it. When I play the playlist on my iTouch - 3 of the 4 are in fast mode...I deleted the playlist, and tried it again - same thing happened... Any suggestions on how to fix. The iTouch is up to date, as is the iTunes on my computer....

    Go to the play screen with the three fast content.  On the right and slightly below the scrubber bar is there a ox with 1/2X, 1X or 2X?  Those are the playback speeds that appear with podcasts and audio books.  To change the playback speed, tap the box to cycle through the speeds.

  • Problems with audio playback in 10.3.9

    hi all- I've got a really weird problem with the audio playback of my G5; when I try and play an mp3 (in Itunes or in the finder window as a preview) the playback "stutters" arbitrarily. This goes for any mp3 - Has anyone come accross this type of problem before?
    I've run checks both with my external soundcard (a motu 828 firewire card) and apple's internal sound, but this seems to be some sort of software problem.
    HELP!!! I'm tearing the (little) hair I have out!!!
    thanks
    Lolo
    Power mac G5 2x2 Ghz & G4 titanium 667 mhz   Mac OS X (10.3.9)   512 ram on G5 and 1 gig ram on G4; both computers are used for audi home studio

    Right.. 10.3.x doesn't automatically pull down mobile users' files. It only creates a new local account on the machine, but gives you the control over the account through WGM.
    BTW- if you want to sync the ~/Library folder, you will need to use 10.4.3 Client (I think) and above.
    _Brett

  • I'm downloading using RealPlayer But the video playback is jerky.  The audio playback is OK.   Can anyone suggest a solution.  Would upgrading to RealPlayer Plus be a good thing to do?

    I'm downloading using RealPlayer But the video playback is jerky.  The audio playback is OK.  
    Please can anyone suggest a solution. 
    PS Would upgrading to RealPlayer Plus help?

    I can't understand how internet speeds can be the cause of the problem.  My problem with a jerky playback is that I have already down loaded.   Could this be to do with my computer (I maybe able to persuade my wife that I need a new one).  Earlier I was listening to a clip of the MJQ, downloaded from UTube, and although the sound was good the picture was not.
    My computer is an iMac with an Intel Core 2 Duo with a processing speed of 2.8 Ghz.  Does this information help?

  • Audio playback slows to around 80% in the timeline for no apparent reason

    Using FCP Studio 2 and halfway through editing a project, the audio playback in the timeline lagged to around 80% and made editing impossible. It just happened for no apparent reason. I've tried deleting preferences and that doesn't help.
    Strangely when I select the audio file from the bin it plays at normal speed in the canvas.
    The same thing happened to a project on my MacBook Pro. It's making life very difficult!! PLEASE HELP!

    Have you tried trashing your render files (Tools > Render Manager) and re-rendering?

  • Possible to "Borrow" QT 1/2 Playback speed CODE ?

    Hello Forum readers -
    With a QT movie that will be posted on the web - is it possible to:
    Have a button that when clicked, plays the movie at 1/2 the speed ?
    (borrows the 1/2 playback speed code from the "AV Controls")
    Since it's incorporated in the QT AV controls - isn't it possible to somehow borrow it -
    And because its on the web - the AV controls won't be accessible - right ?
    Can anybody think of how to do this ?
    Any help or direction appreciated,
    Luke Wonderly
    (What would a programmer charge for attaching this action to a button?)

    Hey KKirster -
    I just (hour ago) bought your book! (now digitally Autograph it)
    I'm still reading it - but hoped somebody already hacked their way though it.
    I had already watched that movie - check your doc's - I tried & watched virtually all the QT (& more) content ON YOUR WEIRD SITE (actually pretty cool - really).
    I notice you were NOT the silent/must agree - with 10 months! True compatriot.
    I did as you suggested - but on this computer only have QT 6.5.2, and once I hit the "Escape" key - the movie closed, and I was simply at the page featuring the poster image - no AV controls.(A button is almost foolproof for a dummy to hit)
    Tell me kkirster - you are herald as the QT guru - isn't there some way, in the QT architecture - or - programming code - that could just activate/engage 50% playback speed "action/call - be attached to a button?
    Ahem, also to disengage - and normal playback speed.
    Thanks for wracking your brain on this one - if you so dare . . .
    Luke
    How much would a programmer (hint) charge for something like this?

Maybe you are looking for