Audio Truncates

Hi,
I have some audio tracks based on MP3 that, when generated,
play fine. But as soon as I add them to a PHP page, they star fine
and stop after about 20 seconds or so, for no apparent reason.
Currently, I have this working fine in a Production
environment under PHP 4.3.11 and MySQL 4.1.21-standard. By in my
test environment which has PHP 5.1.2 and MySQL 5.0.20, I get this
truncation of audio.
I am hoping to upgrade my server in the near future, but I am
worried that this environment combination is causing the issue. I
am guessing that it is the environment that is the cause, but can't
prove for sure if this is the true cause, as much testing has not
allowed me to identify why this is happening.
The truncation of audio occurs when using the auto-start
option. When I set the controls to manual start, upon using the
html based controls, the audio will not start as well.
Any suggestions on how to troubleshoot this issue would be
most welcomed.
Cheers,
Wayne

Copy some of the low volume audio from between pauses in the voiceover to the end of the audio clip to extend it out by a second or two. Adding pure silence won't work because Captivate will truncate it. It has to be 'dirty silence' with at least a little bit of audio data still remaining.

Similar Messages

Why is audio truncated when "shared"

I have an hour of keynote presentations that have correctly working audio. (Recorded and dragged and dropped to individual slides.)
One short presentation (2 min) works perfectly when played in Keynote, but invariably truncates when shared to either iTunes or iWeb. (please see link)
http://www.brentcbrolin.com/BrentCBrolin/TestPodcast/TestPodcast.html
This has a video podcast and a Keynote download link. The audio works on the latter; not on the former.
I have tried various kinds of transition changes, but nothing helps. And, besides, the existing transitions DO WORK IN KEYNOTE playback and when KN file is shared (and downloaded).
Any suggestions appreciated. Thanks.

This is awkward, but it did solve the problem.
Goal: To have the same picture (call it A) continue on screen as the show goes from slide 1 to slide 2. That is, to not have A “blink” when the slides change between 1 & 2.
(N.B. All slides have MP3 narrations; these were recorded in audio program and dropped onto each slide.
Problem: As long as I did not give picture A an EXIT transition, the audio on slide 1 was truncated when I “shared” the slide show to iTunes or iWeb.
I had thought I could just have NO EXIT transition for A on slide 1, and have no entry transition for A on slide 2 (which would avoid the “blink” between 1 & 2.
And when I previewed it in Keynote, THE AUDIO WORKED PERFECTLY, even when picture A on slide 1 had NO EXIT transition.
However, the truncation of audio on slide 1 did occur whenever I shared the same show to iTunes or iWeb (.mov).
I tried many variations including:
a “stop audio” transition with a lot of extra time at end of slide 1;
delaying the “start transition” in the “slide” window of inspector of slide 1;
...but all resulted in truncated audio on slide 1, as long as picture A DID NOT HAVE AN EXIT TRANSITION.
However, if I did give picture A an EXIT transition on slide 1, the audio was not truncated (but, of course, I had a “blink” between slide 1 and 2).
Solution:
Hide a rectangle (or any graphic) behind picture A on slide 1.
Give that blind rectangle an EXIT transition…
…but don’t give picture A an exit transition.
This fools Keynote: it segues from slide 1 to 2 without a “blink,” and the audio narration is not truncated.
But it took a day to figure it out. (I removed the link to the examples mentioned in first post.)

Video conforming doesn't finish, audio truncated

Hi friends, I have been experiencing this frequently lately and usually the fix is to import the video again and wait for the conforming to complete properly. However, I'm importing .mp4 files into Adobe Premiere Pro CC 2014 and the conforming for this specific video always stops at the same point. As a result, I have audio for 26.5 of the the total 30 minutes of the video. I have cleared my media cache, tried reimporting the file over and over, even cleared out all of my preview files. Even then, I'm still having the conformance of said video stop at the same point and leave me with partial audio. Is there any fix that I'm not aware of? Please help. Thank you!

Hi R. Neil Haugen,
I take it you used the Media Browser to select then "Import" and that's where things got stuck?
- Nope. I first copied the DVD's VOB files to my Media Drive. (separate from 'C'. two 1 terabyte 7200 Toshiba drives running @ raid '0'. I normally copy all imports this way and it works on all other DVD's on all other projects up until today with two DVD movies from the '90s. (Making Directors Demo Reel)
More detail about which specific version of OS - Winodws 7 Pro - Service Pack 1
PrPro? - Version 7.2.2 (33)
Your computer's specs ... CPU/RAM/GPU/vRAM,
- Intel i7 Chipset, 960, 64 bit.
- 3.20GHz Gigabyte GA-X58A-UD5
- 24GB ram.
- 1 terabyte 'C' drive.
- 2 terabyte 'M' drives (two 1tb @ raid 0)
- Nvidia Quadro 4000 Graphics Card
- 1000w HX Power Supply
P.s. This project is now unusable. Opening it causes endless "Conforming". Although there's no Yellow progress happening. Even after purging all Cache Files.

Recording multi-slide audio

If I record audio for a single slide, when the audio is
longer than the current slide duration C3 extends the duration to
accommodate the entire audio track. However, if I record a
multi-slide audio (Audio > Record from this Slide), C3 truncates
the audio to fit the total duration of the slides that I am
recording; it stops recording at that moment.
For example, assume a 3-slide "Login" sequence. On Slide 1,
the user types his ID. On Slide 2, he types his password. On Slide
3 he clicks the Login button. I want the audio to span all 3
slides, "You begin the demo by logging into the system."
To avoid audio truncation, I have found it necessary to
(temporarily) extend the duration of Slide 3...I usually make it
about 20 seconds long. I then return to Slide 1 and record the
multi-side audio (Record from this Slide) from Slide 1 to Slide 3.
C3 splits this audio across the 3 slides. I then return to Slide 3
and reduce its duration to the length of the portion of the audio
that C3 placed on this slide.
Seems like a lot of effort to get the desired outcome. Is
there any way to tell C3 that it should automatically extend the
duration of the last slide to accommodate the entire audio track,
rather than truncate the audio to fit the existing slide durations?
If so, this would make my audio work much faster :-).
Thanks,
Bill

Hello Mark,
I'm afraid this problem occurs with all my Captivate
projects.
I've submitted a bug last week but still got no answer...
I guess, I'm going to abandon the idea of importing Captivate
projects in Flash and work with another method : Design an HTML
player and just play the Captivate generated swf in it.
Here is an example :
http://cedricsuire.free.fr/demo/demo1.html
Anyway, thanks for your help !
And if this is really a bug, I hope Adobe will fix it soon !
Cédric

How do I truncate an audio file?

I received an audio file from a friend and I'd like to truncate it. How do I do that?

You need an editor like Audacity or Adobe Audition.
Audition is a monthly subscription, but Audacity is free.

Serious XML problem, audio is truncated on export

I edited a video in FCPX, then I exported the XML, graded in DaVinci Resolve 8.2 then I imported the new XML back into FCPX.
in the new project created from the new XML, I had to add a music soundtrack.
the BIG problem is that when you export the new movie, the audio track is truncated.
I discovered that it's specifically truncated where the original XML duration was ending.
example: in my case the original sequence ended at 2:05, and so it was graded in Resolve and ending also at 2:05 – when I imported the new XML into FCPX, I added some titles and audio track, increasing the duration of the sequence to 2:20.
it turns out that for some reason, the audio is truncated exactly at 2:05 even if you can see it and hear it correctly on the timeline – the problem is only on the exported movie.
note that the exported video isn't truncated, only the audio.
anyone had the same problem?
it would be interesting to nail it down to an FCP XML bug or maybe a Resolve XML export bug.
I will file a bug report both to Apple and Blackmagic.

Just an offhand guess here. Try wrapping everything as a compound clip for final export -- see if that keeps all your audio at the end. That should force an update to the fcpxml (length). I have noticed some bizarre behaviors in fcpxml*, so what might have happened is the new audio you added was attached to a "subclip" (a clip within another clip) which would be "trimmed" by the parent. If the editing applications (including FCPX) did not update the length of the parent after the addition of the extra material... you get the gist.
I've always had the impression that apps like Resolve (and Color) should be the *absolute* final step before export/finalizing a project. The use of these apps are not part of a "back-and-forth" workflow between apps. If you can get back to a stage in your project before Resolve, try adding all your last minute content again before going back into Resolve.
*I've had one fcpxml file generated where *every* title I added over the entire storyline was added to every clip in the xml, even though no more than two titles were ever attached to any single clip... go figure; very corrupted and nothing I do to the project will fix the xml output. Fcpxml is a headache to try and deal with and the documentation *****. For instance, all times are divisions of integers. If a project or clip has a 29.97 frame rate, you do all the math at 29.97 then at the end, multiply the fractional part by 30... or you won't get a frame accurate result ----- I THINK because... IT'S NOT IN THE DOCUMENTATION. But so far that's the way it seems to work. At any rate, if Blackmagic or anybody else has problems dealing with fcpxml... I can certainly understand why. It's probably better to export video for each step and skip the fcpxml BS for awhile until everybody gets it straightened out. [If anyone reading this knows the ins/outs of fcpxml - I would like to start a conversation with you because I'd like to write some online "apps" that take the fcpxml as input - starting with finishing my project that generates chapter markers (for QT and or Compressor).]

How / Why is audio being truncated

Basic Problem: All the audio on imported video clips is being cut off after approximately 7 secs.
Description:
I have a set of clips that were made on a Nikon Coolpix. They were imported firstly into iMovie where they played correctly. Then I imported the same clips into PRE.
I moved a couple of clips onto the timeline where they appeared to play correctly.
I started experimenting with a narration track, the narration coming from a USB mic.
I now find that the audio on the video tracks is truncated after about 7 secs, in other words the sound starts playing and then stops at about the 7 sec mark.
If I detach the audio from the video and look at the waveform you can see the first 7 secs as an expected sound waveform and then the display changes to a rectangular box with no sound waves. I tried to capture an image of the waveform, or lack of it but it appears that the waveform view is on the same level as the screen capture process so I can't capture the image.
All of the clips seem to be suffering from this problem suggesting that I must have changed something at the macro level to create this problem but I'm at a loss to know what would effect it.
I'd appreciate any pointers as to what might be the source of the problem and how I might correct it.
Thanks.
Background:
OS X 10.5.8
PRE 9.0.1

@ Bill Hunt
Hi Bill:
Thanks for the feedback.
After some trials I believe the "conforming audio" is not the problem (or maybe it is and I don' understand it). After importing a clip there is no indication that there is any processing going on - also there is a small 'P' in the lower right hand for the thumbnail. I can't find any explanation of what the letter 'P' means.
I removed all the offending clips and tried reimporting them but still ran into the same problem, even tried importing and letting it sit for an hour to make sure there was no processing going on that I couldn't detect - overkill I know. Didn't solve the problem.
I tried cleaning up the media cache via the preferences menu, after I deleted the offending files. Then reimported but to no avail.
I erased the project and all related files and repeated the whole process but still would not work.
What did work
I tried importing an older file from a different event, also a file from the Nikon, and found that it suffered the same problem.
So I converted the file to mpeg4, imported the converted file and it worked perfectly - the quality of the video appears somewhat degraded but the audio is complete.
I repeated this with a different process. Made the clip into a project in iMovie, exported it and then imported that file into PRE. It worked just fine.
Now I notice that sometimes when I import a file that come from the Nikon PRE asks me if I want to fix the quality.
So, in my naivety I'm guessing that this problem has something to do with the quality of the clip. I don't know much about these things but I understand that the extension mov could mask a variety of formats and so perhaps there is something that PRE can't digest very well in the file exported from the Nikon.
Thanks for the reference links, very much appreciated.

CS3 transcodes but truncates video, audio ok

After reading other posts I'm about to give up on Encore.   I have one large 16g DV avi file. Transcodes too quickly! Why? Because it stops doing the video after a few minutes. The result is a small piece of video and full size audio, i.e. the video section is truncated (as shown in the timeline window.)
I have reimported, made a new timeline with a different name, etc
Are there some temp files I should delete? Or cached stuff?
Any ideas?

The above suggestions are good and valid, especially if you allow En to do "auto" mode. Originally I used most of the methods that have been suggested.   Some failed when I did both NTSC and PAL versions of the same content.. Some failed when I went from 1.5 to CS3.   Others carried the burden of hard disk space, confusion, or time impact.
   For example you can't make a template-like project that is able to switch from NTSC to PAL. You can make two project-templates but when transferring from the NTSC project to the PAL project most of the NTSC work and debugging are lost -- you have to manually make screen images and reenter the data and debug from scratch -- it is easy to overlook an end action or mistype a chapter time.
   When you Save-As, all the huge files go to the new location which you may later replace or delete.   Template files on other programs I've used record the "style" or "template" or "design" or "structure." Or they copy all but the assets. (And why does En make gigabyte sized "conformed" 32 bit audio files?)
   A well planned out partial project, i.e. up to the new stuff, is a good idea but isn't so good for creatively evolving or customizing the project. En won't allow me to change the dafault "quick" play order of assets after they have been imported/timelined. So I lose that part of the structure.
    Saved Menus in the Library don't save a custom button navigation or which kind of color activate-select to use, or which "end actions", etc. A "true" template might save even the menu to menu navigation -- something I use a project-template to do.   As I said, I can't use my old 1.5 project-templates now in CS3 due to a bug.
    The joke is that I started with Nero's "free" DVD authoring which at the time gave me a lot of control and simplicity too. I expected "professional" En would give me much more automation, control, flexibility, creativity -- like the ad says.
As a programmer I know how (relatively) easy it is to export and import. If most items in En were exportable and importable (like chapter lists, end actions, override, etc etc, button nav, etc.) then I would have few complaints.
Then I could set my own encode bit rates, place the assets in quick access order, have custom button navigation, custom colors for activate-select, and do both NTSC and PAL.
Thanks to everyone for all the suggestions and points of view.   Until writing all this down I never knew what my various complaints were! And I still don't know why En truncated my video without beeping or explaining!

MPEG gets audio track truncated in the timeline

I havean mpeg produced in Adobe Media encoder ( from Premiere).
Plays and checks out fine until it is placed in an Encore Timeline and the audio track gets cut off at about 80% of the video.
eg The video and audio track match lengths visually when I drag in the mpeg file...until I Release the mouse. THen the audio track truncates.
mpeg duration = 1.20mins
Any thoughts folks?

It was mpeg 2 dvd. Ann
I haved just tried with different multiplexer ( m2v) and that works fine.

Problem with MP3 audio books - truncating

My shuffle is truncating the end of each part (track?) of my MP3 audio books. It loses the last one or two sentences. Is there something I can do to fix this?
I'm using the OverDrive Media Console to borrow books from the library. I have no problem with WMA format books (they appear as audiobooks in the shuffle listing). The MP3 books show up as "Music".
I'm manually managing music, which is required to transfer audio from OverDrive to my shuffle.
MC754LL/A iPod shuffle 2 GB
Model A1373
software version is 1.0.1

I use "My Media Mall" (http://www.mymediamall.net) to check out audio books from the library. They come in 2 formats - mp3 & WMA. When I check out a book it downloads to OverDrive Media Console. Then in OverDrive I transfer the book to my shuffle (through the manually mange the storage option). If I then start itunes, I can see what's been downloaded and what all the properties are. By default WMA books are loaded as audiobooks and there is an automatic play list created. The mp3 books are loaded, by default, into the music section.
Per your original suggestion, I converted the "music" attribute to an "audiobook" attribute, which automatically move the files and created a playlist for the book. It did not stop the truncation problem. I then converted the book back to music, and selected the "gapless album" feature. This has significantly reduced the amount of truncation so that it's gone from a couple of sentences to less than a full sentence.
If I listen to the book on my computer (windows) through itunes, there are no gaps, and no problem automatically finding the next part to play.
FYI - each audiobook is made of several parts (usually 8 - 11 for the books I listen to). Each part contains multiple chapters. Some books only break parts over a chapter break, others seem to divide the parts into semi-equal sizes. If in the shuffle I "skip to next track", it starts the next part. The voice-over feature on the shuffle announces each playlist (eg. book1, book2) and then each individual part (book1 part 01, book2 part 02, etc.). Usually when I start a book, I use the voice-over to find the playlist instead of locating a specific part. If I've been listening to the book via itunes, then I'll have to step through the playlist until the second portion where it lists the individual portions.
- Beth

Audio (narration) in Capt. 6 truncates

Audio narration cuts off the last few words on the last slide when published. Is there a fix for this?

Copy some of the low volume audio from between pauses in the voiceover to the end of the audio clip to extend it out by a second or two. Adding pure silence won't work because Captivate will truncate it. It has to be 'dirty silence' with at least a little bit of audio data still remaining.

Manually recorded audio is being truncated at beginning

I'm recording narration for a Captivate 3 movie of a software
demo. After I record the audio for a slide, I use the built-in
audio editor to replace the "ramp-up" (noise) at the very beginning
of the recording (usually about 0.7 seconds before the voice
speaks) with silence ("Insert Silence"). This technique has worked
quite well for several demos that I have created, and during
Preview my voice begins to speak about 0.7 seconds after the slide
appears. (This is what I want -- let the user first see the slide,
then hear the description. It "feels" quite natural.)
Today, however, although I have been doing the same thing in
the Audio Editor, I find that when I click OK and return to the
slide this silence at the beginning of the audio has been
discarded. In Preview, as soon as the slide displays the voice
immediately begins to speak; this "feels" too rushed. And, indeed,
if I edit the audio (Audio > Edit Timing > Slide) I find that
the silence that had been at the beginning no longer exists.
I can fix the audio timing, of course, by moving the audio
track to begin at 0.7 seconds rather than 0.0 seconds, but that's
one more manual operation to perform.
Any idea why this suddenly began happening? And how to
prevent it from happening?
Thanks,
Bill

Thanks, Rick. I am recording audio individually for each
slide, and I find an annoying "click" at the very beginning of each
recording as the audio signal starts its ramp-up to the first word
that I speak. I like to eliminate this click, so I select the
waveform from 0.000 till just before the voice starts, and insert
silence. I haven't found any problems in my headphones from doing
so.
In previous movies, Captivate retains this initial silence
(usually about 0.5 to 0.7 seconds) in the audio recording. In my
current movie, though, C3 is discarding the silence, and the audio
track starts immediately with my first word. Thus, I need to shift
the audio track to begin at 0.5 seconds into the slide...another
manual step on each slide.
Bill

Saving As Oggs Truncates Audio?

I'm having a problem I can't understand. I edit a short audio file (wav), and save it as .ogg. It's fine as long as it is still open in AA. but when I close it and open it again, the end of the file gets cut off (like the last .25 seconds). Does anyone have any idea why this could be happening? It's really frustrating. Thanks.
Ken

Durin,
A bit late getting back to this thread aren't I? Well, I don't remember what I did back then, but this problem has reared its ugly head again.
I tried switching the ogg option to "fixed bitrate (128)," but it still cuts off lid the last several milliseconds of my file. Is there, perhaps, something else I'm doing wrong?
Thanks.

Export Region As Audio File results in truncated audio file

When I use the Export -> Region As Audio File option, the resulting file does not sound identical to the region. Specifically, the first 100 milliseconds or so are not in the resulting audio file.
Does anyone have the same problem? Does anyone have a workaround?
I'm using this feature to automate the mastering of hundreds of short regions for a CD-ROM title. So while theoretically I could add a little silence to all regions, this is not really practical, unfortunately.
Powerbook G4 Mac OS X (10.4.5)

Yes, that was exactly it, the inserted plug-in was to blame. I was using Logic's Adaptive Limiter. Now I'm using the Limiter, and the problem no longer occurs. I'm still somewhat curious if there is a simple workaround (I tried a region delay, but it has no effect on the Export Region feature, apparently), but at least now I know what's going on.
Thanks for the responses!

Multiple use of the same video time line for different audio tracks

I have a 90 minute video timeline
I will be putting different audio tracks in multiple languages.
But as i was just editing i wondered if i could use only a segment (30 minutes ) of the timeline
along with a 30 minute audio.
Example:
So the first thing on the menu will be the whole 90 minute video
with a 90 minute music track
Second thing might be the 90 minute video with a 90 minute commentary
Third thing might be the first 30 minutes of video with a different commentary
Forth thing on the menu might be the first 30 minutes of video and 30 minutes of
a different language
Etc.
I realize i will need to make space (mb) for all the audio.....but if i could use the same video or pieces of it
that would be fantastic.
If i can do this i am presuming i should use playlists and chapter playlists to get it done?
I have never done this before and would love some feedback on an over view or tips
that might save me some guess work
Thanks for any help :-)
Soshman

Soshman wrote:
Hey Stan!
Thanks for your help...i think i am really getting this. And have learned a lot.
I had to go back to my computer programming and flowcharting skills to figure out the flow :-)
And i still have 153mb to spare when i build it.
I ended up lining up all the different videos and audios exactly for each time line except for 1 timeline.
Question: I know if the audio is shorter it will be ok.... but if the audio is longer than the video on a timeline ( and its the audio i assigned it by specify link )
Will the DVD keep playing until the audio is done or end when the video is done playing?
2nd Question: I am previewing the playlists with the "Preview from Here" feature
I specify the link and chapter within that timeline ( it is the only timeline with more than one chaper....the one with the longer audio than video from the question above )
For most of the audios i only need video chapter 1.....the preview here plays it ok but if i hit the skip to next (in the preview button on theright of the play button)...it goes to the next chapter #2... instead of the next timeline chapter 1 like it is programed to do from the playlist.
I am wondering if this is just fluke in the preview feature...or will it do that on the actual DVD as well?
Lastly because i am using different timelines. I am wondering if there are delays between playlists? for example...i have a long audio that continues between three timelines...i have spliced it pretty fine so it picks up perfectly on the next timeline...but i am wondering if the DVD when playing in realtime will have a little black space inbetween timelines.
Thanks again for your help and time :-)
Mark
Hiya Mark.
DVD-Video is video dominant, with the audio always following the visuals so if the audio ends berfore the video it will not (okay, should not) be a problem.
However, the other way around could go either way - if the actual video timeline has ended the audio may well truncate so I would personally add videoblack at the very least.
I am also not at all sure how you are going to work a single contiguous audio file across 3 separate playlists. This sounds flawed in concept to me (have I misunderstood your meaning?). In DVD-Video the format is graphically/visually dominant - the audio must always be tied to a visual asset be it a menu or a timeline - so there is no way to have one piece of audio playing across 3 timelines and having it play back glitch free whilst the timeline changes. You will not get a black space - it will simply stop. So unless I have misunderstood you in some way.........
As Stan says, preview is flaky - the only way to know for sure is to multiplex & burn.

Audio Truncates

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