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Do You Hear What I Hear?

I found some MP3s of sine waves at various frequencies at www.freemosquitoringtone.org. As we age, we lose our ability to hear higher frequencies and so these MP3s are offered as discreet ringtones for teens. Try out these tones and let me know how high you can hear. Audio Frequency Test Tones Don’t worry if you […]

I found some MP3s of sine waves at various frequencies at www.freemosquitoringtone.org. As we age, we lose our ability to hear higher frequencies and so these MP3s are offered as discreet ringtones for teens. Try out these tones and let me know how high you can hear.

Audio Frequency Test Tones

Don’t worry if you can’t hear some of the higher pitched test tones. The problem may not be your failing ears. It could be the inability of your speakers, headphones, or soundcard to reproduce the higher tones.
Frequency Age Range Audio File
08.0khz Everyone [audio:8000.mp3]
10.0khz 60 & Younger [audio:10000.mp3]
12.0khz 50 & Younger [audio:12000.mp3]
14.1khz 49 & Younger [audio:14080.mp3]
14.9khz 39 & Younger [audio:14918.mp3]
15.8khz 30 & Younger [audio:15805.mp3]
16.7khz 24 & Younger [audio:16746.mp3]
17.7khz 24 & Younger [audio:17742.mp3]
18.8khz 24 & Younger [audio:18798.mp3]
19.9khz 24 & Younger [audio:19916.mp3]
21.1khz 24 & Younger [audio:21101.mp3]
22.4khz 24 & Younger [audio:22357.mp3]
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Disable Photobooth Flash

So it’s a ton of fun to mess around with Mac OS X’s picture taking application Photobooth, isn’t it? Probably one of the first things you did when you got your new MacBook or MacBook Pro, was to open up that little app and try out all the nifty features. Since then, you’ve snapped hundreds […]

So it’s a ton of fun to mess around with Mac OS X’s picture taking application Photobooth, isn’t it? Probably one of the first things you did when you got your new MacBook or MacBook Pro, was to open up that little app and try out all the nifty features. Since then, you’ve snapped hundreds of photos of yourself, family, and friends using all the warping and color effects. And sometimes those pics have turned out funny or cool enough to upload as your Facebook profile. Everything is great, right? Well, no. At some point you realized that sometimes your photos look a lot better in the preview. Apple was kind enough to give us a simulated “flash” to help light those dim homes we live in, but the flash doesn’t always give us great looking photos. If you’ve tried adjusting your screen brightness all the way down to black, you’ve discovered it still doesn’t stop the flash. Today, you suffer no more. I present a solution. Simply hold ‘Shift’ while clicking the camera button. Photobooth will count down from 3 and make the usual beep, but your photo won’t be tainted by that garish blue cast of an Apple simulated flash. Before (with flash)
After (without flash)

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FIX: Mac DVD Player Volume Problems

The Problem When I watch DVDs on my MacBook, I have noticed that the volume increases and decreases based on the loudness of the movie’s audio. This automatic feature is called “dynamic range compression” and is provided by our dear friends at Dolby Laboratories. Sometimes having this compression applied is nice; it can help to […]

The Problem

When I watch DVDs on my MacBook, I have noticed that the volume increases and decreases based on the loudness of the movie’s audio. This automatic feature is called “dynamic range compression” and is provided by our dear friends at Dolby Laboratories. Sometimes having this compression applied is nice; it can help to even out loud and soft sections. When working ideally, you shouldn’t hear the effect at all, the volume will just be more even.

Unfortunately, I’ve found that the built-in one-size-fits-all setting doesn’t always work the greatest for the many different audio tracks found in modern movies. Often, you can hear the audio “pumping” as the compression kicks in and out. Sometimes the volume will be nicely audible for onscreen dialogue, but suddenly gets squashed by a loud noise like a gunshot or explosion. If you’re like me, you want to shut this off. Why even watch an action flick if all the combustion is suppressed?

The Fix

Disable automatic audio compression on the Mac DVD Player application.

Open the DVD Player (Applications > DVD Player) and open up the ‘Preferences’ panel (DVD Player > Preferences). If you have a DVD playing, you’ll have to stop playback (not just pause) before you can change output settings. In the ‘Preferences’ panel, click the ‘Disc Setup’ tab. Under ‘Audio’ make sure the ‘Disable Dolby dynamic range compression’ is checked. This will shut off the automatic volume changes and pass your audio program on through unaffected. Now you can enjoy those explosions in their full dynamic glory!

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How to Fix a JBL EON10 G2

So your JBL’s are rattling when you pick them up, eh? Getting that uneasy feeling about that clunky noise when you move them? If it’s the same unsettling noise I heard, then I have an easy fix for you. 1. Disconnect the speaker from all power sources.* 2. Place the speaker face down and open […]

March 28th, 2008 | Friends, Technology | , | Comments: 1

So your JBL’s are rattling when you pick them up, eh? Getting that uneasy feeling about that clunky noise when you move them? If it’s the same unsettling noise I heard, then I have an easy fix for you. 1. Disconnect the speaker from all power sources.* 2. Place the speaker face down and open up the shell by unscrewing all the screws around the outside edge. There’s like a million of them, so use a power drill with a long #2 phillips driver bit. 3. Lift the shell off and set it aside. Be careful not to lose any of the screws. 4. Locate the magnet coil and tighten the bolt that runs through the center.
5. Replace the shell. 6. Tighten all screws. 7. Enjoy your clunkless speakers. NOTE: I am NOT a licensed repairman, electrician, or lawyer. I have no idea if fixing this problem will void your warranty, so don’t blame me if/when JBL won’t service your speakers. Nor will I assume responsibility for you doing something stupid while dinking around with dangerous electronics. Make sure you unplug the speaker first and don’t touch anything inside. If you kill the speaker or yourself, I am not liable.

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