HDV Format, HVR-M25 & HVR-M15 Common Features

Track Pattern of the HDV 1080i Specification

HDV FORMAT

HDV 1080i Specification

The HDV 1080i specification*3 of the HDV format features 1,080 effective scanning lines (interlace scanning system) and 1,440 horizontal pixels. It adopts the MPEG-2 compression format (MP@H-14 for video), which uses 8-bit digital component recording with a sampling rate of 4:2:0. MPEG-1 Audio Layer II is used as the audio compression format, allowing for two-channel recording with a sampling frequency of 48 kHz/16-bit. The HDV 1080i specification

provides high

picture quality that

can be used for HDTV program

production.

Compatible with Existing and New DV Videocassette Tape

As a member of the proven DV family of formats, the HDV format has, from the outset, been developed for compatibility with all grades of DV videocassette tape. This allows operators to use high-grade DV videocassette tapes for applications where high robustness is critical, or consumer-grade videocassette tapes for more economical operations. For heavy-duty applications, the DigitalMasterTM high-grade cassette tape has been developed. This tape is compatible with the HDV, DVCAM, and DV formats.

HVR-M25 & HVR-M15 COMMON FEATURES

Switchable Recording and Playback

– HDV 1080i/DVCAM/DV SP and 60i/50i

The HVR-M25/M15 can switch between HDV 1080i, DVCAM, and DV*4 recording, providing full flexibility to record in either standard definition or high definition depending on your production needs. In addition, it can be switched between 60i and 50i modes (NTSC and PAL), which allows for flexible production operations, without the need for two separate VTRs of each standard.

Long Recording Time

The HDV format adopts the same track pitch and tape speed as the DV format, thus offering the same recording time – a maximum of 276 minutes when recording on a DigitalMaster standard cassette tape and a maximum of 63 minutes when recording on a DigitalMaster mini cassette tape.

Dual-size Cassette Mechanism

The HVR-M25/M15 has a dual-size cassette mechanism that accepts both mini- and standard-sized DigitalMaster, DVCAM, and DV cassette tapes – without using any special adaptor. This feature allows the six different types of cassette tape to be used without the cumbersome process associated with additional mechanical hardware.

*1 i.LINK is a trademark of Sony Corporation used only to designate that a product contains an IEEE 1394 connector. Not all products with an i.LINK connector will necessarily
communicate with each other. For information on compatibility, operating conditions, and proper connection, please refer to the documentation supplied with any device with
an i.LINK connector. For information on devices that include an i.LINK connection, please contact your nearest Sony office. 2 Viewable area measured diagonally. 3 The HDV
format also defines the HDV 720P specification, which features 720 effective scanning lines (progressive scanning system) and 1,280 horizontal pixels. *4 The HVR-M25/M15	3
supports DV SP mode only; no support for DV LP mode.	3

HVR-M25N/M25P, HVR-M15N/M15P specifications

The Sony HVR-M25N, HVR-M25P, HVR-M15N, and HVR-M15P are professional HDV/DV decks designed to meet the needs of broadcasters, production houses, and videographers seeking high-quality video playback and recording solutions. These models provide versatile compatibility with various tape formats, making them valuable assets in any video production environment.

One of the standout features of the HVR-M25N and HVR-M25P is their ability to support HDV and DV formats. This dual-format capability allows them to seamlessly handle both high-definition and standard-definition recordings, catering to the diverse needs of creators. It also provides peace of mind for those who may still have DV tapes in their archive, enabling easy playback and conversion.

Both models use advanced A/D and D/A converters, ensuring high-quality video reproduction. They also incorporate Sony's Dynamic Frame Equalizer technology, which enhances the clear playback of high-definition signals while minimizing artifacts and noise. Additionally, the HVR-M25N and HVR-M25P come equipped with comprehensive video processing features, enabling frame rate conversion and a variety of output options, including HDMI, SDI, and component video.

The HVR-M15N and HVR-M15P are similar in function but offer slightly reduced capabilities tailored for different user needs. These models are particularly well-suited for smaller production facilities and individual operators who require a cost-effective yet reliable deck. They maintain the robust HDV and DV support while offering essential connectivity options, ensuring flexibility during production workflows.

All four models come with built-in timecode support, providing precise control over video synchronization. The intuitive user interface, complete with a large LCD screen, makes navigation simple, allowing users to easily manage their recordings and playback settings. The decks are also known for their durability and compact design, making them suitable for both studio and field use.

Overall, the Sony HVR-M25N, HVR-M25P, HVR-M15N, and HVR-M15P are exemplary choices for professionals seeking dependable, high-quality HDV and DV decks. Their comprehensive features, innovative technologies, and versatile compatibility make them valuable tools in the production landscape, ensuring that users can meet the demands of modern filmmaking and broadcasting with ease.