Techniques - tv flicker/white noise effect

can you do this in FCP? I want the equivalent of tuning a radio, but with picture. with some sudden white noise, as though a new transmission is breaking through. fairly common effect, but does anyone know how to acheive it?
thanks

Yea. AE or Motion will be your best friend here for getting a real nice, stylized look, but it should be possible in FCP if those tools aren't available. I'm really not a huge fan of FCP's noise generator though, it looks too fine and generic.
I once achieved a nice effect by recording TV static, and playing it back through a broadcast monitor. There was no sync signal on the tape, so the image flickered and distorted as it was going into FCP. I then played with opacity and composite modes to blend it with the footage that was to sit under it.
If you want to distort the video that sits underneath it, consider finding some static that has a nice black/white contrast, and making a displacement map out of it.
good luck.
Bryan

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HELP! My ipad screen is showing some kind of "snowy-white noise TV effect" it looks kind of "grainy". This ipad is new, no drops or accidents whatsoever... and thanks in advance!

HELP! My ipad screen is showing some kind of "snowy-white noise TV effect" it looks kind of "grainy". This happened when i was reading a pdf an zooming in for a better view, now this "snowy, grainy" screen is also showing up in the home screen...This ipad is new, about 2 weeks with no drops or accidents whatsoever... I'm thinking of replacing it... responses greatly appreciated and thanks in advance!

Try a reset: Simultaneously hold down the Home and On buttons until the device shuts down. Ignore the off slider if it appears. Once shut down is complete, if it doesn't restart on it own, turn the device back on using the On button. In some cases it also helps to double click the Home button and close all apps from the tray before doing the reset.
but it is possible youhave a hardware defect and will need to return it.

White noise, sort of packet loss when talking with...

Hi,
For some unknown reason when I talk with one specific person the call doesn't exactly drop out it sort of cuts the audio and gives me white noise (sort of like when you get packet loss when transferring files or gaming), I have 0 idea why it does it. Does it the reverse as well, but only for me and this person. Everyone else thats in the call doesn't get effected and its frustrating me.

When in a call goto call > Technical info. This will show you various info about the call connection (and a lot of useless info aswell). Amongst the info is packet loss, and relays (if relays = more than 0 you are not directly connected).
Being on the same Skype, version might help.

White Noise showing up in images after PDF Creation

I am currently running into an issue making PDFs from InDesign CS4. Lately, our company has been getting some rather large jobs in to print and that's when this all started.
The current job is 190 pages plus cover that will be perfect bound. The client, nor I can make one large PDF from this job so we have to break it up into sections. Usually each of the PDF sections has around 20-50 pages per.
Now the issue we're running into is that on some of the pages, an image will end up with a bar or lines in it that looks like white noise. Like the image information was lost for a short period of time during the PDF creation from InDesign.
Here are two pictures of pages from separate jobs and a close up on what's going on. **Second image was from a 32 page plus cover document we have already printed.
Now in order for me to fix this issue is to just make a single page PDF of the effected pages in the document. I just wish I knew what was causing this issue so I know how to avoid it in the future. So far four jobs have been affected like this; two 32 page + cover jobs, a 64 page + cover job, and is job.
We use a Rampage Workflow system here. My PDF settings in InDesign CS4 has all compression turned off, no profiles or color conversion turned on. I keep compression turned off because it seems sometimes, vector art done in Illustrator does not seem to come out looking well when RIP'd in Rampage.
My main computer is a 2.8 GHz Intel Core 2 Duo iMac with 4 BG of memory running Mac OS X 10.5.8.
My current version of InDesign CS4 is 6.0.3. If anyone has run into this problem or if anyone has any helpful hints for me, I could really use them please. If you need more information from me, I'll be happy to answer any questions.
Thanks for all the help!
Roc

That one has come up every now and then and has always been hardware as far as I know.... bad ram, bad cable, bad drive, bad network maybe even bad video card (?).
I see that the lines in the rotated pic are parallel with that pic, so maybe look at the machine where that pic was made and placed first, this is not definite, but you can get corruption in tiffs on machines with hardware errors and they may not be visible every time you open the file.
Although probably a bigger clue is the fact that doing singles is working better, that would make me change the ram completely, suspecting a bad module. Also, unplug peripheral devices and see if that has any bearing.

Uniform White Noise vi parameters

Hi
What is meant by seed in the Uniform White Noise vi. in labview. What is the effect of sample rate and nuber of samples on the noise waveform and the output power?
Thanks
Mal

malkoba wrote:
Hi
What is meant by seed in the Uniform White Noise vi. in labview. What is the effect of sample rate and nuber of samples on the noise waveform and the output power?
Thanks
Mal
The seed is a number sent to the Pseudorandom noise algorithm to start its sequence. If left blank a "random" number is generated and sent to start the prn generator. On subsequent calls to the Uniform White Noise Generator it continues the previous sequence (it is pseudorandom after all). I'm not seeing a sample rate on my version (7.1) only sample number. The default for sample number is 128, which is a power of two, something that FFT's etc. are happier with than non powers of two. As far as the effect on the noise waveform, it just defines the length up to max memory or 2^31-1. What do you mean output power? For white noise you would have to define a bandwidth in which you were measuring the noise and then average over a long time. Try putting together a simple experiment and seeing what effects changing the values has. You don't have the base package, if you have the Uniform White Noise vi, so you probably have the Power spectrum vi, etc. Wire the UWN into a power spectrum, then drop a waveform graph on the front panel and look at the resulting spectra.
P.M.
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion

How do I level the volume in a piece of music without creating white noise during silent/quiet parts

It's actually the original Star Wars trilogy soundtrack. The volume swings by 25 db or more, even during the same track. You can't listen to it without riding the volume knob. That's not hyperbole, you actually cannot hear parts of it if the loud parts are at a safe volume. It's not a bootleg copy or anything; I bought the CD's. Pathetic that they haven't already done what I'm trying to do, if you ask me.
Raising the volume of my sterio doesn't create white noise, so it seems like I should be able to duplicate the effect somehow, probably with some kind of dynamics processing. Classic Soft Knee, for example, has the white noise problem. When I used it in the talk radio business, it would also amplify the speaker's breaths. I've fiddled with it and tried to come up with my own settings without success. Maybe I need a different tool entirely?
I'm doing this for my son. He's 5 and loves Star Wars and loves listening to the music in the car wherever we go. Thank you for any help you can give!

My first, only slightly tongue-in-cheek reaction is to say, well done to the manufacturers of the CD!! To actually allow the "full" dynamic range of the original to be released on CD!!
Sorry, I know that is not what you wanted to hear, but it is such a pleasant change that I couldn't resist commenting on the fact that the CD manufacturer actually does NOT want to "homogenise" the dynamic levels. However, I realise this does create a problem for you in the circumstances of wishing to play the CD in your car.
You are correct, IMO, to be looking at the use of compression to reduce that dynamic range, though your talk of "white noise" is concerning. Certainly the effect of compression is to reduce the dynamic range by, as it were, "decreasing the level of the loudest and increasing the level of the quietest parts"; there is a danger that increasing those quietest parts COULD increase the "noise" but I suspect the CD was recorded in pretty near "ideal" conditions, i.e. the noise floor was so far below the quietest signal that raising the level of that signal will minimally increase "noise", if at all.

White noise after bounce and copying to another project

hello
I composed some film music in one project and then bounced it and dragged to a another project (the film with sound effects). The track works fine when 'solo' but when I play all sounds (sound effects, video preview and film music) I get this random white noise/hissing every now and then. Any ideas?
Thanks,
Jim

don't worry I've figured it out, bounced it as m4a and it works perfectly!

White noise when recording in Garageband

Lately i have not been able to record songs on Garageband 6.0.5 on my MacBookPro from 2010 (with 2.4 GHz Inte Core 2 Duo processor and 4 GB of RAM memory) due to white noise that is added to my input. It´s a scraping sound that has not been there before, it´s almost as if the CPU or RAM memory is falling short, but i don´t know if that is the case. I have tried to record with only a few tracks and no other program running at the same time. But i always get that noise. I record with Line 6 UX2 and a SM57.
Any ideas?

I have response from IK Multimedia (I have open case with IK):
HI, Thank you for you're email we will be happy to help you with this.
Maverick support is not official yet, so use it at your own risk for now.
We will have updates for any issues with the current line of products. Older plugins will not be updated.
There is an issue with Garageband as they updated a lot of code that effects certain plugins.
It will not work until we update amplitube and I dont have a time frame for this.
Jason Williams
Senior Technical Support - IK Multimedia
If I understand (I'm not english) ...IK Multimedia don't have time prevision for resolve this problem.
Apple don't response on my case...result= I'm not able to play guitar ...

How would you generate moving tv static - white noise?

Hey guys and gals - been searching, but with no success, to try and find out the best way to make moving white noise / tv static.
Anyone got any suggestions at all?
thanks in advance
Allen

I did this once using the gradient colorize filter over a video set to +50 repeats on a grayscale gradient. Then I just added a "TV static" noise I found on google. With this filter, you can even "morph" a video from full static to a clean image, giving kind of a cool poltergiest effect.

Bypass master volume for constant white noise play (KDE)

Is there a way to play sound while ignoring the master volume control, even bypassing mute?
I have tinnitus (ringing in the ears) and I get relief of these symptoms by playing white noise 24/7, I currently am using http://playnoise.com/ but there are many different sources of white noise, it could even be an mp3. I like it to be playing at the same volume, all the time, no exceptions. But, when I turn the volume up and down via my media keys or system tray, for a song playing in Amarok or a video playing in YouTube the white noise is also turned up and down, this is not needed or desired.
What I'm trying to do goes against the definition of what a master volume is, but I figure it's worth a shot to ask.
The next option would be to have volume adjusters for applications which I have seen done before. 90% of the time I'm adjusting web browser volume.
(I have medium-ish experience with Arch)
Thanks
Last edited by spotshot6544 (2013-09-22 21:42:48)

tricky, but you could achieve that with alsa's softvol plugin.
first you need to have alsa-plugins installed
then add something like this in your ~/.asoundrc
pcm.!default {
type plug
slave.pcm "softvol"
ctl.mixer0 {
type hw
card 0
pcm.softvol {
type softvol
slave.pcm "hw:0,0"
control {
name "Master2"
card 0
this should create software volume control called 'Master2' and make applications use it as default (you need to restart all audio applications and sound servers until it takes effect.)
now you should be able to play white noise from mp3 and set the 'real' master channel for it's output, while all other applications are controllable via Master2. Ideally you should set your card's real master volume to 0db
only issue with this that your white noise will be played full blast unless the application from where you're playing it from has its own software volume control. You can solve this by adding another softvol device in your .alsarc (simply copy the pcm.softvol part and change the control name from Master2 to something else) and use it as output and volume control for the noise.

I have some dts cd's that I want to import into itunes on a windows pc and then play back on my apple tv 3 (i think its 3, about 9 months old) to listen to through my onkyo amp via hdmi as dts, when I play back I just get white noise.

I have some dts cd's that I want to import into itunes on a windows pc and then play back on my apple tv 3 (i think its 3, about 9 months old) to listen to through my onkyo amp via hdmi as dts, when I play back I just get white noise. I have seen lots of old posts which go on about converting files but am wondering wherher at the current time with the latest versions of itunes and apple tv whether this should by now be a virtual play out of the box solution.
I have tried connecting my atv to the amp by optical cable but that didnt produce anything better and am assuming that a hdmi cable should be able to reproduce everything an optical cable does.
Is this something I should be able to achieve without having to recode the files?
Tracks are imported to itunes as apple lossless, have tried setting the atv audio settings to auto and 16 bit, neither works yet I was told some time ago by an apple rep that the atv shoud be able to handle any type of audio as it just passes it to the amp to decode. I am not stupid but not that technical when it comes to audio and bitrates etc so any explaination would be appreciated.
Thanks in advance for any help

Willy, the procdedure you describe works perfectly for AppleTV G1. In fact, I frequently play DTS music discs ripped to my iTunes library as Apple Lossless (ALAC) and synched to the ATV. What happens is that, as far as iTunes and the ATV are concerned, a conventional stereo 16/44 audio file is being played; however my reciever detects the DTS data stream, and instead of outputting static, it decodes the 5.1 channels correctly. This process parallels the way DTS discs were designed to be played back: a conventional CD player is connceted, via digital out, to a DTS-aware reciever/pre-amp and the two channels of static are recognized as 6 channels of DTS-encoded audio.
However this process will only work if the player (CD, ATV, PC, etc.) sends a "bit-perfect" 16 bit/44.1 khz data stream to the decoding device. In the case of ATV G2 and G3, as has been discussed elsewhere, the unit resmaples all audio - including 16/44 PCM (Redbook CD) - to 16/48. While this is not a big deal for conventional audio CDs, MP3s, and AAC files, it mangles the fragile DTS datastream and renders it undecodable. The resulting static that you hear is just like the static you would hear if you played a DTS CD on a non-DTS capable system.
Sadly, I'm not aware of any easy way around this. You could use a program like Foobar (and the DTS plugin) to convert your DTS CDs to 6-ch .wav or .flac file. From there you could transcode the file to AC-3 and then mux it into a video container that ATV supports. You may need add a dummy video track, for iTunes/AppleTV to be ok with the file, though I'm not sure. This may be a lot of work.
Sorry for the bad news. I wish that the iTunes/ATV ecosystem had better multi-channel audio support.
Steven

MBP 17" report, occasional white noise from right speaker

My 2.16Ghz MBP with 100GB 7200rpm drive and 1GB memory arrived a few days ago. Since then I have been installing software, running apps, and generally putting it through it's paces. I have also added a 1GB stick from Crucial. On the whole the MBP has been great, except for a few (hopefully minor) problems:
1. It gets quite warm on the left palmrest, and gets uncomfortably hot between the keyboard and the screen. This is just during casual use, web surfing, downloading updates etc. The case temperature is about the same as my old 667MHz TiBook after it had been at 100% CPU for several hours (encoding video). I dread to think how hot the MBP will get doing something demanding.
2. When closed the screen appears to be slightly bent, the gap at the two front corners is about 1mm wider than the gap at the latches.
3. I have started to get hard crashes during the boot up sequence. Specifically after the grey apple I get the greyed-out multi-language reboot message and have to reboot. If I continue trying to reboot it eventually manages to get past the grey apple and boot up normally (usually this takes 2 or 3 attempts). I suspect this is due to something I've installed, possibly some Canon software for my MP750 printer.
4. I have now heard a white noise/static sound coming from the right speaker on 5 occasions. Three of those occasions were while booting (one of them was when I first turned the MBP on! Not a good sign). The computer boots normally, but with this strange noise! The other two times where when I was launching apps. On each occasion the noise lasted about 3-5 seconds before stopping. It's more of a hissing noise, not a mooing or a whining noise. It sounds exactly like the speakers on a vinyl record player when the needle is in between songs.
Obviously all of the issue are annoying. However I'm only REALLY concerned about item 4. Item 1 was kind of expected after doing some pre-purchase research. Item 2 is annoying in a £1800 laptop, but I can reluctantly live with it. Item 3 is frustrating but I'm sure I can 'cure' it by removing software (it only started happening after a day or two of fairly heavy use). Item 4, on the other hand, is intolerable
Anyone have any suggestions? Advice appreciated. The nearest Apple store is about an hour away, so advice other than "take it to a Mac 'genius'" would be appreciated.
17" MacBook Pro 2.16GHz Mac OS X (10.4.6) 2GB RAM

Well, that was 15 minutes of life wasted typing out the above post that I'll never get back
I was hoping for some sort of 'expert' advice from all the users here with thousands of posts. Evidently not.
Anyway ... I have (kind of) fixed the problem myself. Resetting the power management unit almost completely solves the static noise problem. I say almost, because since resetting the PMU (about 2 weeks ago now) I have heard the static noise ONCE. This is compared to hearing it around 3 or 4 times a day prior to the PMU reset.
This at least makes me slightly more confident that this is a software/firmware glitch, rather than a hardware fault.
Hope this helps someone.

How do I get rid of the white noise that plays over my music?

Hey.
I got 5 CDs today and I wanted to upload them onto my iTunes to put on my iPod. But when I put in 4 of the CDs I got white noise over the top of the music making it unlistenable. But the 5th album(Double CD) worked perfectly fine. I know the problem isn't the CDs because I played them through my PS3 and they were absolutly fine. If anyone can help. Its greatly appreciated.
Thank you.
- DowellG8

Go to Edit > Preferences > General > Import Settings and check the box for error correction, and then try one of the problem CDs again.

YouTube won't correctly process a "TV Noise" effect

I have a TV Noise effect that I created on a solid layer in After Effects with the Fractal Noise effect.
This is how it looks on my computer after encoding:
http://www.tommydimmel.com/images/my_photos/tv%20noise%20example.png
This is how it looks on youtube:
https://www.youtube.com/watch?v=p04tZKXKBFE
Notice that there are little squares all over the place on the youtube video (as well as tiny little 'blurs' everywhere), while the image from my computer shows no such little squares. I have tried every possible render setting on my end and have produced many satisfactory renders, so I know that this is an issue on YouTube's end. Does anyone know if there is a way to tweak YouTube's encoder?
Here's my computer:
Computer - I'm using a MacBook Pro Retina, 15-inch, Late 2013
Operating System - I'm using OS X Yosemite, Version 10.10.1
Software used including version number - I'm using Adobe After Effects CC 2014, 2014.2 release, Version 13.2.0.49 to create the video, and using Adobe Media Encoder CC 2014, 2014.2 Release, Build 8.2.0.54 to render the video.
Source codec - http://www.tommydimmel.com/images/my_photos/Composition%20Settings.png
Destination codec - http://www.tommydimmel.com/images/my_photos/Adobe%20Media%20Encoder%20Rende.....
Type of destination use - I want people to be able to view this video as close to its original quality as possible, streaming on YouTube and Vimeo
Thanks

The YouTube preset in the Adobe Media Encoder with the data rate jacked up to the maximum allowed by YouTube and set to multi-pass rendering is as good as you are going to get because YouTube and Vimeo reprocess all uploaded videos.
The problem is a very small noise pattern changing very quickly and MPEG compression. The color works in blocks of pixels so you are going to end up with interpolated colors. Just static by itself is not very fun to look at. I would suggest changing your design.

InDesign printing to PDF results in white "highlight" effect behind PLAIN black text.

InDesign printing to PDF booklet spreads results in white "highlight" effect behind PLAIN black text. There are no text effects like drop shadows or transparency. Some of the text is in it's own shape above a semi-transparent shape, but not all.
Exporting to PDF does not cause this problem, just printing to pdf. I cannot use the exported pdf as I need the full booklet spreads. Help!

In addition to vinny38's advise to not print to PDF, you may not even need printer's spreads, unless you are printing this yourself. If you are sending this off press, the prepress team will want to do the imposition themselves. If you are printing to a network copier, some have the ability to do booklet printing from a multi-page PDF saved in single-page reader's spreads (one page for each page of the document, rather than two document pages for each PDF page).
If you do need to print this yourself and if you have to impose it in InDesign, consider making a new document and placing the pages of your original document onto the pages of the new document, the way you would place any other images. You can decide where the pages have to go in order to get printer's spreads, and when you're done imposing, export as a PDF and print that PDF to your printer. You will get a better-quality PDF than printing to PDF.

Techniques - tv flicker/white noise effect

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