3
I have a Unibody Macbook running 10.5.5. When I play videos in QuickTime the audio is low even after I raise both the QuickTime volume meter and the system volume meter to the maximum. When I play the same videos in VLC, the VLC volume meter allows me to raise it to a louder level.
Why is this?
Is there a tool for the Mac that allows me to amplify my sound outside of VLC?
hekevintran
Posted 2009-10-08T20:20:50.197
Reputation: 2 211
2
VLC's sound level goes up to 400%. Quicktime maxes out at 100%. I'm not sure why that is, but that's one of the reasons I use VLC instead of Quicktime.
Josh K
Posted 2009-10-08T20:20:50.197
Reputation: 11 754
0
You should be able to boost the volume by holding down shift while adjusting the volume. See this lifeclever tip, which seems to be regarding a rather old version of QT. Not sure if this still applies to QuickTime X -- can anyone verify that?
Nik Reiman
Posted 2009-10-08T20:20:50.197
Reputation: 511
That's a neat trick. I'm running 10.5 so I don't know if it works on QuickTime X. The QuickTime on 10.5 doesn't have the volume meter shown in the screenshot, so you can't do the shift trick. QTAmateur (http://www.mikeash.com/?page=software/qtamateur/index.html) does though and it works there great.
– hekevintran – 2009-12-26T17:44:34.740
1Note that you could probably damage your macbook speakers by putting the volume above %100 using VLC, depending on the source. VLC lets you do it in case the original waveform is super quiet, but unless there is a hardware or software to limit the speaker volume, beware. – MGOwen – 2010-10-19T03:29:53.850
5it's because VLC beyond 100% artificially amplifies the wavform. no problem if the wavform is quiet, but if loud you'll get distortion. – quack quixote – 2009-10-08T20:48:59.267
Is there an app that can artificially amplify sound for the general system volume? – hekevintran – 2009-10-08T21:24:57.633
7i have one called "external volume knob on my powered speakers"... – quack quixote – 2009-10-08T22:26:23.393