R 1008 - MD

The R1008-MD is a special recording interface that simply connects to the camera using a P.C. flash plug,

and to an audio recorder using a stereo mini jack. You can use nearly any stereo audio recorder to record lip sync sound while shooting film.

The sound is going to be captured by any microphone, you connect directly to the R1008-MD. (Mini jack or 1/4 inch plug, depening on the version you require).

While capturing sound, the R1008-MD produces a 1000 Hz burst signal („beep“)  every time the camera shutter is shooting a frame. These bursts are recorded along with the audio to the left stereo track.

listen to the sync signal as recorded by the R1008-MD:

Later on, when you want to add your audio to the film‘s sound track, these pulses control the speed of the projector exactly in the same way, your camera has shooten the film before.

For resolving film in computer software, the sync pulses provide an excellent reference for trimming, stretching and positioning the audio.

Compatible Cameras:

All cameras with P.C. flash socket;

For Leicina cameras, a special Leicina adaptor is available.

new version:

Shooting and recording:

The P.C. contact switching of the camera is triggering the emission of 1000 Hz burst impulses by the R1008-MD. These impulses (one per frame) are recorded to the left track of the recorder.

The microphone is connected to the right stereo channel, without affecting the signal. The audio is recorded to the right stereo channel of the recorder.

Playback and sound transfer:

The right stereo channel, playing the audio signal, is connected directly to the sound projector which could now record to the film.

The left stereo channel, playing the sync signal, is connected to a synchronizer device, which is regulating a projector in closed loop. The synchronizer uses the 1000 Hz sync signal to transform it into a digital master signal. This master signal is all the time compared with the speed information (digital slave signal) delivered from the projector. The resulting difference in frames affects the speed regulation of the projector motor.

This principle implements automatic projector start, together with the start of the sound scene footage.

going into details: