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snap_dragon (3)
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Who's compressing my JPEGs: Gmail, iPad, or WordPress?

The other day I discovered that some JPEGs I'd posted to my (self-hosted) WordPress blog had been compressed. The subject of my blog happens to be anaglyph 3D photos... and if the images are not saved at a very high resolution, a phenomenon called "ghosting" or "crosstalk" appears, where parts of the image that are only supposed to be visible to one eye are visible to the other eye as well. This can ruin the 3D effect. So it's important that my images are uploaded and posted with no added compression. The problem is that I don't know exactly where the problem occurred. Details below... [more inside]
posted by Artifice_Eternity on Apr 16, 2013 - 20 answers

Batch Changing iTunes BitRate for Existing Songs W/O Making Copy

So, I definitely want to convert all my high bit rate mp3 songs in iTunes to a lower bitrate of 190. I have the bit rate setting changed in iTunes, and I know when I right click and choose "make mp3 copy" it does exactly that. BUT, I don't want the original around anymore in iTunes and don't want to manually go through and delete them or go into the folder to do that. The threads I have looked at tell me how to do the first but don't address the issue that I still have the higher bit-rate copy in iTunes. I have a lot of music, I don't want the higher copies cluttering it. (I have a backup of the originals anyway). Is there something I am missing so it just lowers bitrate but doesn't make it a copy?
posted by snap_dragon on Jan 17, 2013 - 6 answers

How to automatically degrade jpg quality to fit in a given space

How can I compress/resize thousands of jpgs to fit exactly into the space of a DVD automatically? [more inside]
posted by Infernarl on Apr 27, 2012 - 5 answers

Properly compressed current jazz and blues?

What are your favorite current recordings with good dynamic range, preferably jazz and blues? [more inside]
posted by thrasher on Apr 25, 2012 - 9 answers

Gah! Acrobat!

Why is Acrobat artifacting my images? I am at my wits end. [more inside]
posted by halseyaa on Feb 9, 2012 - 5 answers

Looking to unPaq files

I am looking for information about decompressing "MediaPaq" archives, with .paq extensions. I am finding the Internet surprisingly silent. [more inside]
posted by sagwalla on Jan 21, 2012 - 3 answers

How can I compress my portfolio into something that won't load like a bad animated GIF?

Can somebody please explain to me image compression, specifically with regard to creating smallish PDFs from Indesign files that contain large linked vector graphics? [more inside]
posted by This_Will_Be_Good on Nov 20, 2011 - 14 answers

Rip Blu-Ray straight to uncompressed .avi at 1080p. What's the best way to do it?

Rip Blu-Ray straight to uncompressed .avi at 1080p. What's the best way to do it? Details inside. [more inside]
posted by Cool Papa Bell on Sep 23, 2011 - 6 answers

Baby Got Back

Aside from preventing chafing, what are the benefits of compression shorts for running? Are there drawbacks? [more inside]
posted by Terriniski on Jul 31, 2011 - 4 answers

Name of paper storage program?

There's a kind of 2D barcoding program that stores large amounts of compressed information on paper, like a QR code. What's it called? [more inside]
posted by This, of course, alludes to you on Jul 12, 2011 - 7 answers

Realtime Recording to a Jump Drive

What software will allow me to record from a FireWire source directly to a compressed format that I can deliver to workshop attendees? [more inside]
posted by jmsta on Jun 23, 2011 - 8 answers

Science: Sound, Percption, MP3, and Beyond

I'm in need of graduate level schooling on psychoacoustics and audio compression on the cheap. What are the latest and/or most used textbooks on these topics? [more inside]
posted by waxboy on Feb 10, 2011 - 3 answers

What is the best audio compression for ipod quality earphones?

What is the best audio compression for ipod quality earphones? [more inside]
posted by Fluffy654 on Jan 10, 2011 - 7 answers

Simple VHS digitization that still satisfies a video nerd's lust for quality

This year for Christmas, I'd like to get my parents the gift of converting all their VHS tapes to digital format. I'm a sometime video editor and effects artist, so I need a solution that's a) cheap, b) not too involved, workflow-wise, and c) meets my video nerd half's demand for quality. What's the best solution that fits all three? [more inside]
posted by tweebiscuit on Dec 14, 2010 - 12 answers

ow. ow alot.

Relief for cervical ulnar nerve compression? [more inside]
posted by Baby_Balrog on Nov 13, 2010 - 9 answers

Please to make smaller file!

Why doesn't the compress feature on my Mac actually compress the files? It creates a .zip file but it's usually only a couple hundred k smaller than the original. [more inside]
posted by amanda on May 10, 2010 - 17 answers

How to compress a line graphic video

Any video compression mavens in the house? Is there a specific codec which excels in compressing line graphics? I'm trying to compress three videos for the web. The first two look fine, but the third looks absolutely awful. The ones that look fine are filmed, with actors; The one that looks terrible is entirely comprised of a line graphic and scrolling text. Upon compression, the bottom half of the screen looks blocky and jumbled... See here (uncompressed at right, compressed at left). I used H.264 encoding and 700 kbps, as instructed... But I also experimented with higher bit rates and quality, to no avail. [more inside]
posted by Silky Slim on Apr 18, 2010 - 8 answers

An hour plus of HD in under one gig?

How do I make my ~70 minute HD video under 1 gigabyte? [more inside]
posted by meadowlark lime on Apr 4, 2010 - 42 answers

Smallest possible audio file to make a 440hz tone?

I want to create the smallest (file size) possible audio file that, when repeated, will sound like a given note (e.g. 440hz A). I think this needs to be just the length of one wavelength, but I'm not sure how I translate that to a length of time, or if the smallest audio format is one in which note duration doesn't matter. I don't care if this tone sounds artificial, but it needs to play natively in Firefox, Safari, and Chrome browsers. Is MIDI the best (most compressed) format for this or should I use something else? And what (ideally free) software might I use to create the files, given access to OSX and Windows XP?
posted by scottreynen on Jan 23, 2010 - 11 answers

Sound Compression

Is there an audio plugin that will emulate the mono sound compression used by AM radio stations?
posted by Yakuman on Oct 29, 2009 - 8 answers

Compression socks recommendation

What brand compression socks should I buy? [more inside]
posted by corpse on Oct 16, 2009 - 2 answers

Help me put my best e-foot forward

Facebook brutally compresses my images, anything I can do to minimize it? [more inside]
posted by Jezztek on Oct 8, 2009 - 12 answers

Help me Optimod-ize my audio!

Is there a good real-time compressor/limiter for FM broadcast that I can use on a Mac? Preferably one that works as an AudioUnit (AU) plug-in? [more inside]
posted by CommonSense on Apr 21, 2009 - 5 answers

Best way to manage decryption/decompression of iPhone app bundle resources?

How to best encrypt and compress a folder of html-files in the iPhone app bundle, and unpack on first start? (DRM) [more inside]
posted by avocade on Mar 4, 2009 - 14 answers

Compressing whole DVDs for playback on a Mac.

How can I store DVDs for use in a media library and get the benefits of compression without losing the menu structure and special features? [more inside]
posted by odinsdream on Feb 21, 2009 - 12 answers

compression

I am searching for a freeware utility for mac osx 10.3 and higher that can be used to compress files. Can't seem to find anything...
posted by citybuddha on Dec 28, 2008 - 9 answers

Which camcorders let you turn off all the clever stuff and access the raw video?

I'm thinking of buying a camcorder. My requirements are slightly unusual: I would like one that does all the "bells and whistles" stuff (image stabilisation, auto light balance, H.264 compression etc). But I also want to be able to turn off all the clever stuff and access the "raw" video. Any recommendations? Hard disk/SD recording is a must, high definition would be good.
posted by handee on Nov 21, 2008 - 6 answers

pondering Honda quandary

Is it reasonable for a 1995 Honda Odyssey engine with 150K miles on it to have a compression of 179? [more inside]
posted by wsg on Nov 19, 2008 - 13 answers

DVD/Handbrake Divx Burning Woes

I using Mac the Ripper than Handbrake to turn DVDs into mp4 files. (I use DVD dual layer)...When I use Roxio Popcorn, I can fit several movies on a disc (4) but it takes honestly a day and a half to burn on DVD !!!! But the DVD plays perfectly in my cheap player. Trying a different route, I tried dragging the mp4s to a blank DVD disc and then clicking "Burn" -- it burns and takes only 30-40 minutes but this version will not play on my DVD player. Anybody out there have an idea what I can do to make the process more efficient? Different software or different method? I appreciate your insight. By the way, I am running Mac OX X 10.5.5.
posted by snap_dragon on Nov 15, 2008 - 13 answers

DVD Burning & Compression -- 2 for 1?

I am using Mac the Ripper and Roxio Popcorn successfully to rip, compress, and burn DVDs. I have leftover DVD-R Dual Layer DVDs -- is it possible to fit to movies on a DVD? I tried a few ways and it only shows one movie. Any settings I could change? Any other software? Thanks.
posted by snap_dragon on Oct 8, 2008 - 10 answers

What sort of inaudible audio signal survives compression?

I recently became an Arbitron ratings person (which I'm not allowed to tell anyone, hence my anonymity). I'm supposed to carry a portable device that they say picks up "sound energy" signals embedded by participating radio and TV stations so they know what I'm listening to, even if the audio is compressed. What the heck is "sound energy"? [more inside]
posted by anonymous on Sep 14, 2008 - 11 answers

How can I apply Dynamic Range Compression to my iTunes library?

How can I apply Dynamic Range Compression to my iTunes library? [more inside]
posted by Mwongozi on Sep 2, 2008 - 10 answers

How to unzip my iTunes Library backup?

OS X filter: How can I recursively unzip files (in directories that are not zipped)? [more inside]
posted by wheat on Aug 17, 2008 - 6 answers

making podcasts easier to hear with dynamic compression

Can I make podcasts easier to listen to in a noisy environment using compression? [more inside]
posted by primer_dimer on Aug 14, 2008 - 9 answers

Ask a chemist - cooling CO2

A question for chemists - I am doing a calculation about the energy requirements of taking CO2 at atmospheric pressure and temperature and compressing it to 2 MPa (2000 kPa, about 300 psi) and cooling it to -31ÂșC and am a bit uncertain about handling the phase change from gas to liquid. [more inside]
posted by gspm on Jul 24, 2008 - 7 answers

How to compress a bunch of folders to their own zip file?

Is there an automated script or program to create a separate zip file for each directory? [more inside]
posted by niwnfyc on Jul 7, 2008 - 4 answers

Should I buy an eee PC?

How do I get DVD video onto a optical driveless PC? [more inside]
posted by smithmac_99 on Jun 27, 2008 - 9 answers

How common is familiartity with .ZIP archives?

Is it safe to assume that anyone professionally employed in a computer-using job (secretary, assistant, ect.) is familiar with ZIP archives? What about the public at large? [more inside]
posted by unmake on Jun 18, 2008 - 29 answers

Compression software for a Flip Ultra

I have just bought a Flip Ultra but the included compression software to make large video files email or YouTube ready is unbelievably slow. I'm on a PC, running XP. Can you recommend any third party compression software?
posted by lometogo on Apr 26, 2008 - 7 answers

Streamline a conversation

Outlook Cleaning/Archive Gurus: Help me eliminate emails with similar (but not duplicate) content! [more inside]
posted by colecovizion on Apr 24, 2008 - 2 answers

How do I open a ".tar.tgz" file?

How do I open a ".tar.tgz" file? That's all one long extension. [more inside]
posted by exolstice on Mar 29, 2008 - 21 answers

Batch image compression on Windows Server?

Can anyone recommend a small/lightweight image compression program that can run on Windows Server 2003? Thanks [more inside]
posted by bloodniece on Mar 4, 2008 - 11 answers

uncompress my love, cause maybe i dont love you all that much

compressed files inside of compressed files inside of compressed files. arg. please help me automate this process. [more inside]
posted by yonation on Feb 9, 2008 - 7 answers

Downgrading Megapixels

Stupid-question-filter: Suppose you have a 10 MP camera and take your pictures at 3 MP. Would the quality be any different than if you were using a 3 MP camera at its top setting? (assuming the two cameras are otherwise identical) [more inside]
posted by lullabyofbirdland on Feb 7, 2008 - 10 answers

Help me hear the difference

Software to ABX audio files (on a Mac)? [more inside]
posted by JulianDay on Jan 22, 2008 - 2 answers

Compress Your Luck

Preparing videos for youtube: what are the most efficient video/audio compressions to use when trying to keep a video under 100 MBs with sacrificing as little quality as possible? [more inside]
posted by Mach3avelli on Dec 17, 2007 - 4 answers

Compressing Dolphin vocalizations and Boat noise?

Hi there, I am doing an honours project on the effects of boat noise on dolphin communication and my supervisor had this idea of using compression to analyse this. He basically suggested that we record dolphin vocalizations in the presence and absence of boat noise, and then compress the files and determine which compresses more (dolphin sounds with the boat noise, or dolphin sounds without the boat noise). His thinking was that less complex sounds should compress less...so he thinks that boat noise will compress less than dolphin vocalizations. Thus, if dolphin vocalizations happen to compress more in the presence of boat noise than they do without the boat noise...this would sort of imply they are "losing information" so to speak. Does this make sense? [more inside]
posted by Racergirl on Jun 25, 2007 - 15 answers

Video files too large!

I need help with video compression... [more inside]
posted by eas98 on Jun 4, 2007 - 13 answers

Raw Uncompressed Camcorder Footage

A follow-up to this question: I need to get uncompressed digital video recorded to a hard drive for the purpose of developing compression algorithms. I need a portable solution. High-def is not required. [more inside]
posted by donpardo on Apr 26, 2007 - 19 answers

Back to the gym with a bad back

Can anyone offer advice for going back to the gym after a back injury and six months of downtime? [more inside]
posted by stavrosthewonderchicken on Mar 11, 2007 - 15 answers

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