Audio In playback starts/stops

I finally got some movies to import to encore and I have been working with the menus but when I go to preview it, the audio starts and then stops. Anyone know what might be going on or can help. Thx

>some movies... audio starts and then stops
First, Encore requies DVD specification compliance
Compliant video to produce a DVD (per Encore forum)
NTSC: 720x480 or 720x486 (or 704x480) at 29.97 or 23.976 fps
PAL: 720x576 (or 704x576) at 25 fps
Encode audio to AC3 or PCM for best player compatibility
NOTE that 704-wide is "less good" per a recent message
in that it may (will?) need to be re-transcoded by Encore
Second, provide DETAILS of "some movies" so someone may have
some idea of what you are doing, and why there are problems

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Double Skip of Audio at Playback Start

Can anyone elucidate why, on my PowerMac G4, tracks in iTunes don't start playing clean, but rather drop several seconds of audio (in two installments), before "settling" into the track? The tracks are fine and will start "clean" from the rewind button, but from full stop, I always get this glitch when starting a track. Quicktime will play these files without a problem.
Any help appreciated.
Power Mac G4 MDD Mac OS X (10.4.8)

I am having the same problem. This same issue occurred a while back when they moved to the first CC version and it was maddening. I was in contact with text support about it and they were aware of it. They finally came out with a fix, but for some inexplicable reason, it's back.
Makes editing timelines very difficult, takes multiple passes to see how something is coming together when it randomly just out and you can't have the director or client look at it, cause they can't hear it!
There was a somewhat effective work around that improved but not removed the issue until the path came out. Go into the preferences in audio hardware and reduce the buffer size. That helped a little. not as much cut out not as often, but it still happens. Adobe claimed it was an issue with the graphics card of all things.
Anyway, I am having the issue as well and hope Adobe will issue another fix soon. Rather maddening to have the big fixed only to have it surface again after they fixed it previously.
iMac (27-inch, Mid 2011), 3.4 GHz Intel Core i7, 24 GB 1333 MHz DDR3, AMD Radeon HD 6970M 2048 MB running Yosemite.

Audio clicks when playback is stopped.

In the process of recording a couple of bass guitars that were Keymapped into sampler instruments, I noticed some strange audio behavior. While playing the new sampler instruments, finger lift off from my MIDI guitar controller was causing a clicking or sucking sound each and every time. (The recorded notes in Logic were allowed to decay naturally and the samples were not looped.)
So I went to the recording in Logic and sure enough, hitting the space bar or numerical decimal would elicit a click when stopping playback. A quick test recording was completed in Digital Performer with the same result. Also a quick test in Logic with the smallest and largest i/O settings. Same problem.
Recording signal into the Mac via Built-in Line input also produces the same clicking. So that removes suspicion for my interface (828mkll with Black Lion mod) which has been a rock-solid performer.
I have 5 GB of Ram. OSX10.5.5, 7200 RPM sata drives, etc.
Is this some sort of core audio issue?
What to do???

Ok, I recorded each bass chromatically into Logic in real time (not triggering samples via MIDI).
The resulting audio files were opened in Keymap to be converted to an EXS24 sampler instruments.
The lift off clicking noise occurs with both basses but not with factory sampler instruments I play with the Godin LGX-SA.
The point about the spacebar or numerical pad decimal point is that when I use either of these to stop/start playback of the original audio file in Logic, clicking occurs. Uninterrupted audio playback is fine. Interrupted playback causes clicking which should not occur. While attempting to problem solve the funny lift off noise while playing the sampler instruments, I noticed that interrupting playback of the original recording in Logic caused clicking.
I recorded the same bass guitars into DP (not MIDI-triggered samples) through the same interface with the same clicking problem when audio file playback is stopped via the spacebar or DP keyboard commands.
So there are no MIDI messages involved here. The point of mentioning the sampler instruments is just that that was the when I noticed the audio problem. For simplicity sake, if we leave sampler instruments out of the discussion, I am still left with some sort of audio problem.
The same basses played and recorded via Built-in Line input causes the same clicking to occur during interrupted played back.
Somehow. the noise that occurs with finger release from the fretboard is related to the problem with the audio clicking when stopped during playback. Meaning that the audio file is corrupt in some way.
I followed your suggestion of unchecking both play tickboxes in the Sound Effects tab of the Sound preference. The problem still exits.
So in summary, at this time, I cannot record audio into my Mac without some sort of clicking problem when stopping playback. Audio that I record then causes some strange lift off noise or click when played as a sampler instrument. The base problem is that something goes wrong when audio is recorded into my Mac.

While playing videos on itunes, audio and video will stop and start. It just started doing this recently and it does it with all my itunes videos..help!!

While playing videos on itunes, the audio and video will stop and start several times during playback. This just started recently and it does it on all my videos. Help!!

Try to download the application VLC.
It is a media player that should be able to play any audio or video file you may have. If your videos play flawlessly using that application, then the issue is with iTunes and Quicktime, as they are both essentially similar software types when it comes to playing media.
In that case you may need to install a plug-in file called Perian, in order for the videos to play correctly within iTunes or at least Quicktime...

[solved] I hear audio 1s after playback starts - ALSA & ALC888 S/PDIF

Hello,
I run 64bit Arch Linux, my soundcard is a Realtek ALC888 (HDA ATI SB according to alsamixer) and I use ALSA (alsa-lib 1.0.21.a-1).
The back of my computer looks like this:
I have a YAMAHA RX-V596RDS AV Receiver connected to my sound output via a TOSLINK (S/PDIF or Optical Cable) connector.
My alsamixer looks like this (edited to fit small screen):
I used aadebug to get some info about my setup: output
I have two problems with my setup:
1. Whenever I start playback - be it mpd, mplayer, vlc, flash in ff, aqualung or audacity - the playback will start instantly, but I will only start hearing the output when one second has passed. (So I won't hear the first second at all.)
This also happens when I use the RCA Jack to connect my AV Receiver.
However, if I unmute "Front" and increase volume for it in alsamixer and connect my headphones to the light green (stereo) jack output (on top left in photo above) and tell audacity to use hw:0,0 ("ALSA: HDA ATI SB: ALC888 Analog") as output, I will hear the sound in my headphones *instantly* when playback starts.
When I 'mpd next' the same delay of ~1 second will happen. However I noticed that if I pause audio playback sweep (audio editor) and very quickly continue playback, there will be no gap and no 'loss of audio'.
I suspect, that dmix goes into a stand-by state, whenever audio stops. Can I force dmix to have a longer timout or none at all?
2. I can't get Audacity to playback audio together with other applications. mpd and mplayer and flash in ff and vlc will play audio at the same time, but audacity won't. If I start audacity while mpd is playing, there won't even be the option to select "hw:0,1", "iec958", "spdif" or "default". If I use any other device (like dmix), it will play using analog (I can hear it in my headphone).
If I start audacity, then start mpd and then try to playback in audacity (using any of the devices "hw:0,1", "iec958", "spdif" or "default"), I get following error message repeatedly:
Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1027
Expression 'AlsaOpen( hostApi, parameters, streamDir, &pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1059
Any one having these problems? Anyone having ideas what the reasons might be?
Thanks
Last edited by qubodup (2010-01-11 17:45:19)

I don't know if this will help but i used to have a similar problem when i switched to musicmanager as my default music player, (i also have the same soundcard)
When connected to my receiver via optical out there would be a initial delay of around a second everytime when playing a new song, although there was no delay through my laptop speakers.
What worked for me was adding esd to my daemons array

Flip video starts, stops, doesn't run smoothly

I have a Powerbook G4, 1.67 GHz, 10.4.11 with Quicktime 7.6. I downloaded the video from my Flip Ultra and it barely runs in Quicktime - stutters, starts stops, video lags behind audio. I downloaded the 3ivx and the Perian software and still no luck. I did import the video into iMovie HD and it works fine there. Any ideas?

Is it one of the new Flip Ultra HD cameras that came out last month? Or is a standard definition Flip Ultra? If it's one of the new Flip Ultra HD camera your computer is under powered to playback the video in Quicktime.
For 1280x720 (720p) video at 24-30 frames per second:
(Macintosh)
1.8 GHz PowerMac G5 or 1.83 GHz Intel Core Duo or faster Macintosh computer
The Flip HD cameras uses 3ivx to encode the video to h.264. Not one of the best encoders. I have one of the flip's Mino HD camera and I have to transcode the video into another codec so I can play the video one my computer.

Apple TV 2 all of a sudden has trouble streaming. I stream from my desktop computer's iTunes for movies, and tonight it started stopping randomly mid movie and saying it wasn't connected. Any ideas? Router? ATV dying?

Apple TV 2 all of a sudden has trouble streaming. I stream from my desktop computer's iTunes for movies, and tonight it started stopping randomly mid movie and saying it wasn't connected. Any ideas? Router? ATV dying?
It just says not connected, and as soon as it bails to menu, it connects again and will play for another minute before doing the same thing all over again.

Hello David,
Thank you for contributing to the Apple Support Communities.
It sounds like your Apple TV is having trouble streaming videos from iTunes on your computer. This symptom could have a variety of causes, and I'd suggest the following initial troubleshooting steps.
In addition to restarting your devices (Apple TV, computer, router), try the tips in this article, starting with "Check your home network:"
Apple TV (2nd and 3rd generation): Troubleshooting playback performance - Apple Support
All the best,
Jeremy

NO AUDIO during playback after converting the VIDEO using Creative Video Conver

I have a ZEN 2GB/4GB/8GB/6GB/32GB.
I tried to convert video from a dvd using Creative Video Converter.
The video is fine but there is no audio during playback.
What am I doing wrong?

"If this is the case, the original video file may be in a format that contains muxed (multiplexed) audio and video, and cannot be exported with audio."..."If the format is "MPEG1 Muxed" or "MPEG2 Muxed," the audio portion of the file may not be retained with QuickTime Pro or iMovie."
I have read that article and I thought it ment that the sound will work after you convert to the MPEG4 format, which I did.
Are you saying that if it starts out as "Muxed audio" then there is no way to convert it?
If that is the case then in what situation would you need to use the Videora Converter?
Thanks,
Sean

Media Widget missing Start/Stop Sliders

I have seen video tutorials on inserting Media widgets in iBooks Author that show the Start/Stop Slider for controlling start and stop frames in the Widget Inspector. However, these sliders DO NOT show up in the Widget Inspector in my iBook when selecting one of the videos I have inserted. Poster Frame, Repeat and Playback controls are all visible in the Media widget as they should be. I am using Author version 1.1 (190). Any help out there?

Not the scrubbing slider, the Start Frame and Stop Frame slder in the Inspector just above the Poster Frame slider (where you select the frame you want as the display frame). The tutorial I saw (http://www.youtube.com/watch?v=qzk9pyBnhTU) shows this addition slider in the Inspector box. Either it used to be there and isn't any longer or my version of iBook Author is not current (which I doubt but here is the info from my original query: version 1.1 (190)

Problem with audio configuration that affects audio/video playback

Recently, when I watch video on i tunes that sound and picture to not match up. Sound seems to be on-time but the picture is jerky and behind. I un-installed my video driver and reinstalled. Problem persisted. I started my computer in safe mode and it said there was a problem with the audio configuration that effected audio/video playback. I uninstalled i-tunes and re-installed and the problem still persisted. I'm at my wits end and it is driving me crazy. Windows Vista is automatically updated so that's not the problem. Please help.

Have you had a chance to look at this troubleshooting page? It may be of some help: iTunes for Windows: iTunes has detected an audio configuration problem

How do I prevent my Mac Pro from hanging up in a start/stop loop?

My Mac Pro has a strange behavior I need help with. This computer is used almost exclusively for audio recording in my studio. I run Cubase 4 as my primary sequencing software. Everything will be going fine during a session, and then the software will abruptly hang up in a *start/stop loop*, stuttering back and forth between these two functions for up to 2 minutes before stopping. During this loop problem, the start/stop transport buttons alternately light up and the song starts and stops. Nothing I have tried will interrupt the problem. It just runs its course and then stops, usually between 30 - 90 seconds.
Interestingly, the same behavior shows up in other applications and in the Finder. In Quicktime and iTunes, it shows up as a start/stop loop. In the finder, it will shuttle back and forth between two related functions and beep each time. In word, it will show up as a key stick, typing the same letter over and over.
Needless to say, this is all very frustrating and embarrassing when clients are here. Any help will be greatly appreciates. Let me know if you have any additional questions.

I'd begin with repairing your drives with Disk Utility and Disk Warrior; clone your system to another drive, and check for corrupt files and prefs.

DV Start/Stop detect with iMovie

http://discussions.apple.com/thread.jspa?forumID=936&threadID=557928
Because this thread was marked solved I can't add to it.
I think the problem is the rendering as you surmised. There is no way to fix this problem because of the way iMovie works. It captures without timecode so every clip begins at zero. Once you've rendered the material and moved it to the browser the render file looks to the TC on the clip to sync up. Once it's broken up every subclip starts with zero because it has no inherent timecode so the render file associated with zero TC links to every subclip.

Hi Tom,
thanks for addressing that topic again (I had just marked it "solved" because it was open by a long time...).
I see what you mean: since there is no TC in the .dv from iMovie there is no way to sync the audio render file and the subclips. Another interpretation is that DV Start/Stop Detect applies only to the original .dv media, not to audio (item level) render file created in the timeline, so FCE cannot associate different sections of the audio render file to the corresponding subclips.
But now that I read it again... I think we are just saying the same thing!
And you are suggesting a feedback would be useless.
Thanks anyway
Piero

Logic Pro midi start/stop remote

I would like to start and stop (and even record) in logic with MIDI-commands from my keyboard (Roland RD-700GX).
The keyboard has several midi buttons which are progammable but the message which is sent, is not a controler or SysEx but the start/stop status bytes of the MIDI-protocol. Logic cannot recognise these messages. Is there any trick or what can I do to work around this problem.

voss.audio wrote:
(look at FAH and FCH!)
Well I downloaded the Midi Implementation manual and it says that these the S1 and S2 buttons send this messages for start/stop. They are labeled as "Real Time Midi messages" but I could not understand if they are MMC ones for this device. If it is standard MMC it must looks like:
*MMC messages*
An MMC message (that is sent to, or generated by, an MMC device) is:
*F0 7F deviceID 06 command F7*
The third byte is the Device ID.
The fifth byte is the command:
01 Stop
02 Play
03 Deferred Play
04 Fast Forward
05 Rewind
06 Record Strobe (Punch In)
07 Record Exit (Punch out)
08 Record Ready (Record Pause)
09 Pause
0A Eject
0B Chase
0F MMC Reset
40 Write
44 Locate/Go to
47 Shuttle
Where the Roland Device ID is 41 as far as I remember.
You can try the S1 & S2 start/play function but first enable "Listen to MMC Input" logic sync setting ( see the pic below ).
I downloaded the User Manual of the RD-700GX as well, so in page 103 I found "Transmitting the Control Change (USER CC)". can you try to assign for S1 & S2 buttons ? If yes then assign CC13 for S1 and CC14 for S2 ( values 0 for example ). After that try to learn the Logic Keycommands dialog for play stop using this buttons - see my first post picture.
!http://img707.imageshack.us/img707/9002/mmc.gif!
!http://img59.imageshack.us/img59/4967/aglogo45.gif! [www.audiogrocery.com|http://www.audiogrocery.com]

Start/Stop control for itunes

I am in a band and I use itunes to playback my drum tracks. Anyone know of a switch (I'm visualizing a USB start/stop footswitch) which I could use to stop itunes playing? Thanks for your help. Brett

Oh, ya. I know all about that problem. Sorry it is not good news. You will probably need a new phone. Moisture has gotten into the button or the dock port and shorted the home button contacts. Replacing the button will not fix it since it is the contacts on the board that are shot. You can Google fixes for iPhone home button, for more details. There is a rough work around fix of adding a few drops of rubbing alcohol on the button and pressing it 15 times then blowing it out with compressed air. This helped a bit, but did not fix the problem.
Happened to me while I was running a bit of sweat must have gotten in. There and it started happening to me.

HT1199 cannot play songs, the following comes up - Itunes has detected a problem with your audio configuration. Audio/Video playback may not operate properly. Can anyone help. Cheers Wade Johnson

Cannot play songs, the following comes up - Itunes has detected a problem with your audio configuration.
Audio/Video playback may not operate properly.
Cheers
Wade Lawrence

Hello Wade,
This is typically indicative of an issue with the installation of QuickTime on your computer. The following article provides steps for reinstalling QuickTime to resolve the issue.
"iTunes cannot run because it has detected a problem with your audio configuration"
Resolution
QuickTime may need to be reinstalled. Follow the steps below to uninstall QuickTime and then download and install QuickTime using the QuickTime standalone Installer.
On the Start menu, click Control Panel.
Follow the steps appropriate for your Windows operating system below.
Windows XP and Windows 2000: Open the Add or Remove Programs control panel and selectQuickTime in the list of currently installed programs.
Windows Vista and Windows 7: Click Uninstall a program (or if using Windows Vista's Classic View of the Control Panel, click Programs and Features) and select QuickTime in the list of currently installed programs.
Click the Remove button (or Uninstall for Windows Vista and Windows 7) and follow the prompts to remove QuickTime from your computer.
Download QuickTime. Note: There are two options for downloading QuickTime, be sure to select the option that does not include iTunes.
During the download:
If you choose to run the installer, proceed to the next step.
If you choose to save the download, double click the QuickTimeInstaller file, then proceed to next step.
Follow the on-screen instructions to install QuickTime.
Reopen iTunes.
iTunes for Windows: iTunes cannot run because it detects an issue with QuickTime
http://support.apple.com/kb/TS1371
Cheers,
Allen

Audio In playback starts/stops

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