Audio never peaks on the EX 1???

[Don Greening]

[Emma Greave] “It also doesn’t give us the option to change the internal mic trim on the camera settings.”

That’s because you’ve got your wireless receiver set to line. The line setting disables the trim adjust in the EX menu. Set your wireless input to “mic” with no 48v. Once you’ve done that set your trim to -41 as a base line, put your volume control to “5” and start adjusting the internal trim from that point.

– Don

Don Greening
Reeltime Videoworks
http://www.reeltimevideoworks.com

[Joel Frances]

You’ve all probably worked this one out by now but I find setting the trim to -53dBu is ideal. It gives you more sensitivity than -41dBu. It seems good in most room situations. This is with my Ex-3.

Also, alot of lapel mics have attenuation adjustments – which could lower your levels from the mic end.

Joel

[Peter John]

This thread was started a long time ago but some things never change so it is still relevant, at least in my case, as have just got hold of an EX1 and am wrestling with the external audio settings.

Thought the external audio recording system or the Audiotechnica AT897 was faulty when I tried it out with the trim set to -41db that is the default setting recommended both in the EX1 operating instructions and also in the AT897 spec sheet if I read it right:

OPEN CIRCUIT SENSITIVITY –40 dB (10.0 mV) /
(Phantom / Battery) –41 dB (8.9 mV) re 1V at 1 Pa*

At first the results were not promising. While the levels for the internal mic were about right, the levels for the external mic (with the trim set at the default -41 setting were very low.

Hmmm? Is something wrong with my preloved camcorders audio recording system? It didnt help that Dumbo at this time I hadn’t figured out how to set the AGC link and Audio output settings either, which I did later).

Fortunately I found this thread and this post by Joel that I really appreciate, as it solved my problem:

You’ve all probably worked this one out by now but I find setting the trim to -53dBu is ideal. It gives you more sensitivity than -41dBu. It seems good in most room situations. This is with my Ex-3.

After I adjusted the trim from the EX1 default and Audiotechnica recommended settings -41 (if I read them right) to -53, as Joel suggested, the audio levels of the external mic with audio level set at 0 matched exactly the audio levels of the internal mic (ie more or less were I expected them to be in the first place with the settings at default).

So either I misunderstood something or the default settings were not right for this particular camera with this particular mic??

Or would you expect the default settings for the external mic ought to be at a lower level than for the internal mic???

Anyway at least now am a Happy Camper quite relieved the problem is me and not the preloved EX1 🙂