Re: Magic Lantern Headphone Monitoring

E

ectobuilder

Veteran
Re: Magic Lantern Headphone Monitoring

Can we use any USB Mini to 3.5mm cable to connect a headphone for monitoring?

Sescom's version is like $45 but others on Amazon are like $7. And can this work on the T3i as well?
 
hi,
from my understanding that only works if your device acts as USB host - which your cam isnt. (pc/mac or few tabs and smartphones are capeable of this)

JB
 
jbooba said:
hi,
from my understanding that only works if your device acts as USB host - which your cam isnt. (pc/mac or few tabs and smartphones are capeable of this)

JB
Click to expand...

Magic Lantern, which is a third-party firmware plug-in, adds audio monitoring output from the USB port of several Canon EOS cameras.
 
ectobuilder said:
Can we use any USB Mini to 3.5mm cable to connect a headphone for monitoring?

Sescom's version is like $45 but others on Amazon are like $7. And can this work on the T3i as well?
Click to expand...

No. The "USB" connector in question on certain Canon DSLRs is not simply a standard USB connector, it has extra pins which carry the analog audio and video signals with which we are concerned here.

The cheap USB to 3.5mm adapters you are referring to are made for cell phones and do not have the required connections.
 
I've just hacked my usb cable. I cut the usb cable then cut a A/V cable with a 3.5mm jack and spliced the two together. Now looks much better than with a joint addaptor in the middle and shorter.
 
Correct. You have to use the USB-phono cable that came with the camera, or one that is designed for use with the camera. I guess your next question might be "No headphone socket?". You can get a dual phono-3.5mm plug adapter to solve this, and just connect to the red/white audio plugs.
 
or, if you happen to already have one of those composite-to-3.5mm male plugs (from an old camcorder or something), you can use that and run it into a fiio headphone amp which sports 2 female 3.5mm connections (audio in and out). Heck, I recommend the Fiio regardless, since it will take the output from the camera and allow you to raise the volume of your headphones. The audio out of the camera is pretty low.
 
Alex H. said:
Magic Lantern, which is a third-party firmware plug-in, adds audio monitoring output from the USB port of several Canon EOS cameras.
Click to expand...

Just to confirm, this is not available using the Canon stock firmware correct? I tried to monitor audio and video via the USB port on my T3i but got no audio unless I was in playback mode.
 
joeblack said:
Just to confirm, this is not available using the Canon stock firmware correct? I tried to monitor audio and video via the USB port on my T3i but got no audio unless I was in playback mode.
Click to expand...

No- DSLRs were not designed to monitor audio while recording. Magic Lantern is a suite of custom aftermarket tools that run on top of the firmware, and offer features that the camera doesn't come with out of the box. One of those is the ability to monitor audio on the AV cable.
However, since ML doesn't actually replace the firmware (it runs off the SD card), one could technically say it is still working on the "stock firmware" from Canon.

But, the sad news for you is that the t3i has noisy and unsupported new audio chips. The older chip used in the t2i, 60D and 5D have been well documented by now, which allows the Magic Lantern team to access full control over it. The t3i is not only using a new chip, but apparently this new offering is noisier than the old ones.

Bottom line: The t3i is a great camera (crop mode, flip out display, etc), but if you are planning on using it to record audio, I would strongly recommend another option, like the T2i instead. It is just not a good camera for that, and more expensive to boot.

More about Magic Lantern:
http://www.dvxuser.com/V6/showthread.php?248171-Magic-Lantern-Firmware
 
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