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iPhone Volume Tweak Followup

Nick "Drudge" Penree writes that he took my tip for boosting audio and made an Installer.app package that does all the work. It's called AudioAmp and is available in Tweaks 1.1.2. TUAW readers have reported various levels of success with the package. Some readers are delighted. Others feel it overboosts the volume.

I finally had my chance to test this hack more impersonally. I grabbed my Radio Shack Sound Level meter, installed the tweak and tested levels during playback. I put the sound meter and the iPhone on a table and kept both units in the same positions through all the tests. I made no change to the volume bar (always set at the maximum), or the music (Beach Boy's, "Sloop John B", always starting playback at the beginning). I remotely rebooted the iPhone after each test via ssh so I wouldn't mess up the positioning on the table.

And my results? Identical readings for sound levels, whether Default > Default was set to 0.99, 0.70, 0.45, or 0.30.

Thanks, Tom



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Hacks iPhone

Nick "Drudge" Penree writes that he took my tip for boosting audio and made an Installer.app package that does all the work. It's called...
 

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lgc90

The volume is still WAY too low. AARRRGGGHH Apple!!!

December 26 2007 at 2:28 PM Report abuse rate up rate down Reply
oshawapilot

Ugh, is this 1.0.2 compatible? I've seen no reason to bother upgrading my firmware at this point and am still languishing back there.

This could be the thing that makes me finally upgrade if need be...assuming it actually works, which also seems to be up in the air.

December 08 2007 at 9:20 PM Report abuse rate up rate down Reply
Mercury7

Erica, I forgot to tell you thank you for updating the redlight app, much better without the title bar and I used it the other night for an astronony show I put on for some first graders.

December 08 2007 at 10:26 AM Report abuse rate up rate down Reply
scotty 2-shots


What about call volume levels? Rarely has anyone complained about media playback volume - the audio level that my videos and music can reach over the speaker is a clear indication that the hardware is capable of higher audio levels.

It's call volume and speakerphone volume where the iPhone has lacked. Any audio tests on speaker volume?

December 07 2007 at 10:09 PM Report abuse rate up rate down Reply
Mike Kobrin

While it seems like taking a sound level meter and putting it X distance away from your iPhone and testing the output would be valid, it actually doesn't quite work that way.

In order to get readings that are even remotely meaningful, you need to do it in a controlled environment and with the proper settings on the meter. You also need to have the meter close enough to a source (this becomes critical when dealing with low-output sources like the iPhone, as opposed to speakers) to capture the sound well enough to measure significant differences. (I.e., if you're too far away you won't measure a significant difference.)

I'm happy to help with this if anyone's interested... I did it for PC Magazine for many years.
-Mike K.

December 07 2007 at 9:54 PM Report abuse rate up rate down Reply
1 reply to Mike Kobrin's comment
rp

Assuming that her test was done with the meter close enough to the iPhone's speaker, then it should be alright because the iphone speaker is unlikely to cause any table vibration or wind issues so a controlled environment is unnecessary. She wasn't trying to find out anything except if it was the same or louder with the hack installed. If the hack only provided something like a 1-3 dB increase, then it wouldn't really matter anyway because most likely she would be unable to hear any difference. That being said.. Erica, did you actually notice any difference? The reason I ask is because the meter is basically useless until about +-4 dB since Radio Shack meters aren't Type I or II (Type S I think) which means the range of error (due to meter crappiness, no calibration, etc) is substantial enough to make measurements irrelevant except at extremely varying levels, and only then for rough approximation. If I can get access to an iPhone and install this hack on it, I'll use one of our Type I meters to find out if there really is a difference or not.

December 10 2007 at 2:43 PM Report abuse rate up rate down Reply
Tom

Also, what's the 36 at the top Erica? Is that the temperature outside, or something? It's friggin cold.

December 07 2007 at 9:47 PM Report abuse rate up rate down Reply
Tom

If you use installer.app and have the extra sources then you have conceited as a source

you can however remove that source from your sources in the new installer.app if you want, but then you'll lose a lot of stuff.

December 07 2007 at 9:45 PM Report abuse rate up rate down Reply
ken love

WOW, I did not mean to start a firestorm...
I in NO WAY was saying anything bad about anyone involved. I was just trying to let everyone know that the link was redirecting. I read TUAW on a regular basis, I find it very useful and informative... AND I am guessing that Conceited Software is named correctly. I have and will continue to make donates for software that I find useful....

Thanks
Ken L.

December 07 2007 at 6:49 PM Report abuse rate up rate down Reply
Buck Bailey

I only read TUAW for Erica's iPhone dev posts.

December 07 2007 at 5:57 PM Report abuse rate up rate down Reply
1 reply to Buck Bailey's comment
brian

exactly my point.. you would benefit from a blog just for iphones

December 07 2007 at 6:15 PM Report abuse rate up rate down Reply
Josh

This article is poorly written and confusing. Erica, are you saying unit that was manually hacked had the same volume output, at all levels, as the unit that used AudioAmp?

Or are you saying it had the same output as a "stock" unit?

Or are you saying it had the same output, and that all the levels, in actuality, output at the same volume... effectively negating the usefulness of this hack/app, regardless of how it's installed?

December 07 2007 at 5:54 PM Report abuse rate up rate down Reply
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