Chapter 1 General Information; Mmr-8 Introduction - Tascam MMR-8 Owner's Manual

Chapter 1 General Information

This chapter presents the main features and capabilities of the MMR-8 hardware and a functional
overview of its Panel/Display states. MMR-8 product specifications are also included.

MMR-8 Introduction

Figure 1-1. MMR-8 Front View
The MMR-8 is a non-linear digital replacement for the analog or digital tape machines found in recording
studios and broadcast facilities, and for magnetic film dubbers found in film and video post-production
facilities. The MMR-8 can play back and record eight tracks of material from one or more SCSI hard
drives or other removable media. Each MMR-8 can record onto a single removable SCSI hard drive, or
play back from multiple SCSI disk drives of various types. Playback can be in exact or track-slipped
synchronization to industry-standard film, video, and audio devices, whether mechanical tape-based or
hard drive-based.
Audio files recorded on the MMR-8 consist of selectable linear 16-bit or linear 24-bit words at sample
rates of 48.0 kHz or 44.1 kHz, each modifiable to a pull-up or pull-down level, including conversion
between PAL, film, and video, making fourteen total discrete sampling rates. The analog I/O section uses
balanced +4 dBu analog connections on DB-25 connectors that are pin-compatible with the Tascam DA-
88 and may use the same cables. The DIO (Digital I/O) card allows direct connection of the MMR to
standard AES/EBU digital audio inputs and outputs for direct digital recording and playback. The digital
I/O connector can use a standard DA-88 cable to provide four stereo AES inputs and four stereo AES
outputs. Any digital input can be selected as the sample clock reference source. Additionally, any one of
the four digital input signal pairs can be selected for routing through a sample rate converter.
Tascam MMR-8 Owner's Manual • Chapter 1 • General Information MMR-8
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