Instant volume change in movie player

DusX

Both Hap and pjpg use QuickTime for playback, therefore the audio also uses it.

Perhaps recompressing to a Directshow codec will help in that the audio will pay via a new engine.

If you continue to have problems, please open a support ticket (link in my signature) and I will do my best to help you find a solution.

niknaim

actually i never worked with dirct show codes. Which ones are good for widows?

DusX

WMV as a container usually has h264 defaults from editing software (premiere, Ae, etc..)

AVI, can contain many things. Using Cinepak will give performance similar to a pjpeg mov (my experience)

You can see a break down of what is supported by DirectShow here: https://msdn.microsoft.com/en-us/library/windows/desktop/dd407173%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396

Its important to note, that currently .mp4 as well as the sound formats are handled by Quicktime in Isadora.

niknaim

Hey Ryan,
thanks for your advice. I used avi with the Intel IYUV codec (because i dont have the cinepak codec) and sound is instantly there. Perect!

Niklas

niknaim

I just made some more Tests and converted my new videos with mpeg streamclip into "apple cinepak". But unfortunalty the quality is not good, even on 100%. So I will try mp4, or did you have any bad experience with that?

niknaim

I (almost) ended in unsing apple component video YUV which gives the volumecontrole an instant reaction and the compression looks good on the image. But now I have some jerk (I hope thsi is the right word). Its just not playing perfectly smooth, although the framerate is constantly at 25fps. And since I have very slow camerapans in my video this is very important. Any idea what could work better.

Michel

@niknaim

There is a Knowledge Base article about the best way for windows to go: http://troikatronix.com/support/kb/optimizing-for-speed/

**excerpt**: _When running Windows, we recommend using AVI or WMV formats, because these movies will use native Windows routines for playback, as opposed to .mov files which require Apple’s QuickTime. _

Michel

Michel

@niknaim

Or try the [HAP codec](http://vdmx.vidvox.net/blog/hap-windows).

Best Michel

niknaim

so finally avi worked good for me for instanz volume change of a video. But no I want to change the volume of a soundplayer instantly from 0 to 100 and back as well as do slight volumefades. When changing I hear always some short "audio cracks". Is there any chance to change the volme clean?

DusX

@niknaim

Open Quicktime Player, and check its audio setup in preferences.

You likely have a few options there. Depending on your system's audio card, one may be better than the others.

I am using 'Windows Audio Session' and haven't had problems, but you may do better with 'Direct Sound', or 'Safe Mode'.

niknaim

@DusX
I tried all 3 settings, but all had cracks in the sound.

DusX

What is the audio card you are using?

DusX

Also, if going instantly from 0 to 100 you might always get a crack..

You may be better to use a short (1/4 second) fade..

niknaim

Its the onboard audiocard. coulndt find more than "realtek high definition audio".

DusX

Sure I have a realtek as well.

Have you tried with the ultra short fade?

niknaim

yes, I tried the short transition but still the same. And anyway I also need the smooth transitions. By the way I used wav-files.
I now tried an mp3-file which is played only in the movieplayer, not in the sound-player. But this seems to works fine now for me.