BMPCC - Microphone Prototype
 

No Preamp, no battery. Only "PlugIn Power" from Pocket Camera.

Re: BMPCC - Microphone Prototype
 

It's quite a nice video, but I didn't see the microphone anywhere in it. :-P

(sounds great through my Event 20/20 monitoring speakers)

Andrew

Re: BMPCC - Microphone Prototype
 

http://www.fxcinema.de/temp/ohr01.jpg

1x Headphones, 1x Microphone

http://www.fxcinema.de/temp/ohr02.jpg

Prototype Mic... all sounds with pocket "100%" Level.

Mic (Version 1.0):
- Non-directional Stereo
- 10-18.000 Hz
- S/N Ratio 82 dB (1 kHz)
- max. Sound Level 120 dB S.P.L.
- Sensitivity -30 dB (1 kHz)
- 990 µA Current Consumption (9V - ab 2V)
- Impedance ca. 3 kOhm
- Windshield

Stereo Headphones:
- Perfectly closed System for Sound record
- System 40mm, Dynamic
- Frequency Range 10- 20.000Hz
- Impedance 32 Ohm
- max. Input power 500mW
- Sensitivity 105 db / 1 mW

Re: BMPCC - Microphone Prototype
 

Interesting!

Just a thought: if the operator sneezes while recording .... it's going to be in stereo? :-)

Andrew

Re: BMPCC - Microphone Prototype
 

yes ;-)

http://www.hzandbits.com/wp-content/...rman-1917a.jpg

Re: BMPCC - Microphone Prototype
 

The Mouseketeers!!!

Re: BMPCC - Microphone Prototype
 

The next prototype ;-)

http://www.douglas-self.com/MUSEUM/C...201921%20a.jpg

Above: A two-horn system at Bolling Field, USA, in 1921. Acoustic radar.....

Re: BMPCC - Microphone Prototype
 

Hi Wolfgang,

I am a bit puzzled by your prototype pocket camera powered microphone as I did not think there was any power available from the BMPCC.

However I am impressed with the amount of detail and the shades of colour in your shots.

Were you using ProRes HQ or DNG and also what lens were you using?

Re: BMPCC - Microphone Prototype
 

The BMPCC has 2.47 V PlugIn Power, no problem...

demo filmed in Prores "Film", 24 fps, 800ASA, Shutter Angle180, (100 Euro Lens) Olympus M.Zuiko Digital 14-42mm F1:3,5-5,6 - sharpness + color in Premiere Pro CS6.

Re: BMPCC - Microphone Prototype
 

http://www.fxcinema.de/temp/b13.jpg

Prototype: Today testing the ultmativ windshield...

http://www.fxcinema.de/temp/wind.mp3 (windmachine with 3 m/s)

Left Channel with new windshield, right channel only pop-filter.


http://www.fxcinema.de/temp/b14.jpg

Re: BMPCC - Microphone Prototype
 

Thanks Wolfgang,

Interesting, I have tested the same lens but was very disappointed with its sharpness and I returned it to my supplier. At that stage I did not add any sharpening which I am now trying with other lenses.

Re: BMPCC - Microphone Prototype
 

O.K. Metabones speedbooster with Nikon Lens are sharper....

here my Olympus digital M.ZUIKO 14-42mm 1:3.5 with BMPCC

http://www.fxcinema.de/temp/pocket_2Kchart02.jpg

pure sharpness with BMPCC/Speedbooster/Nikon 60mm

http://www.fxcinema.de/temp/pocket_2Kchart.jpg

Re: BMPCC - Microphone Prototype
 

Hi and thanks again Wolfgang,

More contrast and a bit more definition with the Nikon, is it the 60mm Micro Nikkor? What should I think about the colour patterns?

Re: BMPCC - Microphone Prototype
 

I don't quite understand this topic, is it because you are going to try to sell the mic setup and are keeping what it all is a secret for now?

Anyways the sound sounds amazing to me so if you will ever share what it is and how to set it up please tell me as I would like to see how much all the pieces cost and if it is practical to build one myself, whatever it is that is.

Re: BMPCC - Microphone Prototype
 

Dylan,
I am guilty of taking this thread off topic but I have also wondered about its original purpose. In the absence of any other information it looks as though the headphone diaphragms are being used as microphones with their outputs being fed into the BMPCC mic input. This would explain the placement of the wind protection fur patches but not the power consumption.