Hi i want to build low to high z cable basic to connect microphone and dslr. I dont want to bay adapter i want to make him. anubody sugest advice about making adapter low to high impedance
You want to connect microphone and DSLR to an amplifier (say, to add voiceover or live comments to a video) or connect the mic to the DSLR to have better audio when filming?
If so, doesn't your camera have some microphone input?
What microphone will you use?
What camera is it?
EDIT: where are you?
In any case, it's more complex than "just a cable"
If so, doesn't your camera have some microphone input?
What microphone will you use?
What camera is it?
EDIT: where are you?
In any case, it's more complex than "just a cable"
Get a microphone that is compatible with the DSLR, that would be the best bet, or put the audio out of the DSLR and the MIC into a mixer...
The sound out of most DSLR's in built microphones is often terrible, with the noise of the camera often overpowering and external sounds and the often heavy breathing in the background of the camera user....
The sound out of most DSLR's in built microphones is often terrible, with the noise of the camera often overpowering and external sounds and the often heavy breathing in the background of the camera user....
Hi i want to connect dynamic microphone shure or senhheiser to canon dslr eos70d , and i know that i must have same impedance transformator in the cable
The cable does not change the impedance.
The copper in the cable just connects the two output terminals of the mic to the two input terminals of the receiver.
You need to "change" the impedance using a transformer, or with an active circuit (like an amplifier or buffer), if the current input impedance of your receiver does not suit the mic output.
The copper in the cable just connects the two output terminals of the mic to the two input terminals of the receiver.
You need to "change" the impedance using a transformer, or with an active circuit (like an amplifier or buffer), if the current input impedance of your receiver does not suit the mic output.
Yes i know all that, i want to make this http://www.amazon.com/Shure-A85F-Transformer-Female-4-Inch/dp/B0006NMUHW. And voul anubody tell me what is inside of that adapter
well if you want to make something like that i hope you have the tooling to wind your own transformers because the Shure A85f is a matching transformer.
Yes, it is a matching transformer. Likely 600:10k Ohms. If you google Shure you will find the correct impedance (I would do it for you, but I'm to lazy). These transformers can be had for $3 at Digikey, Mouser and Radio Shack. E
I read the full spec brochure Canon U.S.A. : Consumer & Home Office : EOS 70D and nowhere it mentions external microphone connectors, even less type or sensitivity.
So please first google and post here relevant info, otherwise answering is impossible.
Now to the camera use:
a couple weeks ago I watched the French film "Tomboy".
Tomboy (2011) Movie Trailer HD - YouTube
I was amazed at the high quality image (I already knew it was a very low budget movie) ... filmed with a Canon DSLR almost the same as yours, Canon EOS 7D .
You can read how it was used in:
One Thousand Lux: Film review. An analysis of the Cinematography of Tomboy by Céline Sciamma
at the same time I was appalled at the horrible sound, so much so that I couldn't stand the torture and by the middle of the film I had to leave my seat and wait outside for my friends, go figure.
The BIG (unbearable for me) mistake was that apparently, on many scenes, when filming at a certain distance (say, beyond 4 or 5 meters away) and/or in a relatively noisy environment (the budget allowed no studio use, most scenes were filmed outdoors or in "real" homes, etc.), obviously the on camera mic was not enough, so they added some external mic close to the actors.
So far apparently so good, but using 2 microphones to record the same person, at about the same level but separated by such distance, creates a comb filter
which is both strong, annoying and impossible to equalize, because it's caused by phase differences.
Q. What exactly is comb filtering?
Many dialogues sound exactly as if they had a flanger applied (think Van Halen guitar sound) .
They should have used an external microphone (or more, if very carefully placed and mixed) and mute the internal one.
Or record audio separately, even on a cheap Zoom digital recorder and later join audio and video.
Pity that a poor audio decision (hey! we have 2 mikes !! let's use them!!) took much value away from a film which was visually very well made.
Oh well.
Back to your problem: I suggest you do NOT use the internal microphone at all, for a multitude of reasons (including the heavy breathing mentioned above) nor even "a cable" but you get a cheap mixer such as:
http://www.amazon.com/Behringer-502-XENYX502-5-Channel-Mixer/dp/B000J5UEGQ/ref=pd_cp_MI_2
Only U$43 and free shipping .
So please first google and post here relevant info, otherwise answering is impossible.
Now to the camera use:
a couple weeks ago I watched the French film "Tomboy".
An externally hosted image should be here but it was not working when we last tested it.
Tomboy (2011) Movie Trailer HD - YouTube
I was amazed at the high quality image (I already knew it was a very low budget movie) ... filmed with a Canon DSLR almost the same as yours, Canon EOS 7D .
You can read how it was used in:
One Thousand Lux: Film review. An analysis of the Cinematography of Tomboy by Céline Sciamma
at the same time I was appalled at the horrible sound, so much so that I couldn't stand the torture and by the middle of the film I had to leave my seat and wait outside for my friends, go figure.
The BIG (unbearable for me) mistake was that apparently, on many scenes, when filming at a certain distance (say, beyond 4 or 5 meters away) and/or in a relatively noisy environment (the budget allowed no studio use, most scenes were filmed outdoors or in "real" homes, etc.), obviously the on camera mic was not enough, so they added some external mic close to the actors.
So far apparently so good, but using 2 microphones to record the same person, at about the same level but separated by such distance, creates a comb filter
which is both strong, annoying and impossible to equalize, because it's caused by phase differences.
Q. What exactly is comb filtering?
Many dialogues sound exactly as if they had a flanger applied (think Van Halen guitar sound) .
They should have used an external microphone (or more, if very carefully placed and mixed) and mute the internal one.
Or record audio separately, even on a cheap Zoom digital recorder and later join audio and video.
Pity that a poor audio decision (hey! we have 2 mikes !! let's use them!!) took much value away from a film which was visually very well made.
Oh well.
Back to your problem: I suggest you do NOT use the internal microphone at all, for a multitude of reasons (including the heavy breathing mentioned above) nor even "a cable" but you get a cheap mixer such as:
http://www.amazon.com/Behringer-502-XENYX502-5-Channel-Mixer/dp/B000J5UEGQ/ref=pd_cp_MI_2
Only U$43 and free shipping .
I occasionally shoot 'home' video with my DSLR and I do mean home, the pictures are excellent the audio with the on camera mike is terrible. Most that do shoot video a lot get some external audio recording or interface as mentioned above, most DSLR do not have great audio even with an external mic.
- Status
- Not open for further replies.