MMR-8 Film Connections

Although the MMR-8 can only be controlled by one film transport bus at a time, there are four film transport connections (biphase input) on the UI/B card on the rear panel. These connections

allow a single MMR-8 to be switched between up to four projection/mix-down rooms when it is placed into a main machine room. The biphase input that the MMR-8 follows is set using the Sync Group menu

100.The four inputs are grouped together in the lower part of the UI/B card and are numbered 1 - 4 (top to bottom) to match Sync Groups 1 - 4 (selected through menu 100). Not intended for public telecommunication network connection.

The MMR-8 can only control one film transport bus, which is connected to the biphase output connector at the top of BIPH card on the MMR-8 rear panel.

All biphase connectors use standard 6-pin modular telephone plugs (RJ12, the same type used on 3-line telephone systems) so that up to 1,000 feet of standard 6-wire phone wiring can be run to the various film transports. A terminal strip (or a 6-wire surface mount jack) can be used to adapt the film transport connector wiring to the MMR-8 wiring.

These connections are normally done for post production final mixing sessions. Other post production duties, such as ADR and Foley would use the same connections if a film transport or dubber was to be involved. In both of these applications the MMR-8 would be set up to record the dialog and Foley sounds directly to the disk that would be moved back to the original DAW editor.

As in all uses of the MMR-8, the Lynx and/or MMR buses can be used by the MMR-8 to control any number of additional audio and video equipment even though that MMR-8 is being controlled by the film transport.

Video Post Production

In video post production the MMR-8 is typically slaved to a video tape recorder. In this use the VTR’s time code output is the time code reference for the MMR-8. If the VTR is connected to a house sync signal, then the MMR-8 should also be connected to house sync (through the Video In connector) and should use that signal as the frame reference. In lieu of house sync, the VTR’s video output would connect to the MMR-8’s Video In for the frame reference source. The MMR-8, although time code slaved to the VTR, typically also functions as a master for any other audio devices on the Lynx and/or MMR buses.

The Lynx Bus

The Lynx Bus is an asynchronous communications bus that transmits a frame clock as well as time code and motion commands between the MMR-8 and other devices using an RS-422 serial communications bus operating at 38.4 KBaud. Up to 1,000 feet of cabling can be used in the bus system with each device connecting via 9-pin D-sub connectors. All that is required to build-up a Lynx bus is to daisy-chain each Lynx bus device to the next one in line along with a separate house sync connection. Each Lynx-2 box has two Lynx bus loop-through connections just like each MMR-8. A Lynx-2 interface is necessary to connect each remote controllable audio or video device to the Lynx bus. A Lynx Keyboard Control Unit KCU can also be connected directly to the Lynx bus to allow independent and grouped remote control of up to six Lynx bus connected machines. This is described in more detail in Chapter 4 MMR-8 Setup Menus.

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MMR-8 specifications

The Tascam MMP-16 and MMR-8 are two innovative products designed to meet the specialized needs of audio professionals, offering advanced features and capabilities suitable for various recording and playback applications.

The Tascam MMP-16 is a versatile audio router and mixer that excels in different environments, from live sound to studio recording. One of its primary features is the 16-channel configuration, allowing for significant flexibility in signal routing. The MMP-16 supports multiple audio formats, including analog signals, making it adaptable to a wide range of setups. It boasts high-quality AD/DA conversion, delivering excellent audio fidelity and low latency performance.

Additionally, the MMP-16 is equipped with comprehensive digital processing capabilities, including EQ and dynamics processing on each channel. This makes it ideal for both mixing live performances and preparing recordings for post-production. The unit's user-friendly interface includes an intuitive display and physical controls that streamline operation, making it easy for both novice and experienced engineers to navigate.

On the other hand, the Tascam MMR-8 is a robust multi-track digital audio recorder that offers exceptional reliability for professionals who require high-quality audio capture. This 8-channel recorder shines in its ability to handle various digital audio formats, ensuring compatibility with different workflows. One standout feature of the MMR-8 is its solid-state recording technology, which enhances durability and reduces the risk of data loss, a crucial aspect in high-stakes recording environments.

The MMR-8 also provides comprehensive onboard monitoring options, allowing users to assess audio quality in real time. Its extensive connectivity options include digital and analog inputs and outputs, facilitating seamless integration with other studio equipment and live sound systems. The data management capabilities of the MMR-8 make it easy to organize and retrieve recordings, while its compact design ensures portability without compromising on performance.

Both the MMP-16 and MMR-8 showcase Tascam's commitment to innovation and quality in the audio industry. Their advanced features, coupled with solid build quality and ease of use, make them essential tools for audio professionals seeking reliable solutions for their recording and mixing needs. Whether utilized separately or in conjunction, these devices amplify creativity and enhance the overall audio production experience.
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