RODE

Description

Capture sound from every direction with the RØDE SoundField NT-SF1, an ambisonic condenser microphone designed to record a complete three-dimensional sound field. Four matched TF-45C true-condenser capsules arranged in a tetrahedral array record four discrete A-Format channels, preserving the directional information needed for subsequent spatial processing. Whether capturing environmental ambience, film sound or immersive audio for virtual reality, the NT-SF1 preserves the flexibility to shape the listening perspective after recording. Its four-channel architecture, SoundField processing and dedicated accessories support a workflow that keeps creative options open from initial recording through post-production.

Four-Capsule A-Format Recording Preserves Spatial Detail

At the heart of the NT-SF1 are four matched 1/2" TF-45C true-condenser capsules, capturing sound arriving from every direction, including height. Each capsule feeds a discrete A-Format recording channel, preserving the directional relationships between sounds for subsequent spatial processing. This architecture allows engineers to retain the full spatial information of a performance or environment without committing to a fixed microphone perspective during recording. With a frequency range of 20Hz–20kHz and a maximum SPL of 129dB, the NT-SF1 accommodates a broad variety of sound sources, from subtle environmental ambience to louder musical performances and effects.

SoundField Processing for Creative Spatial Control

The SoundField by RØDE plug-in decodes the NT-SF1's four-channel A-Format recordings, enabling detailed spatial adjustments after the recording session. Engineers can adjust virtual microphone directionality, orientation and polar response, allowing them to refine the listening perspective without repositioning the microphone during the original recording. The software also supports decoding to mono, stereo and surround formats up to 7.1.4, providing options for conventional mixes and immersive multichannel productions. This flexibility allows the same recording to be adapted for different creative applications as production requirements evolve.

Four-Channel Connectivity and Accessories for Location Recording

The NT-SF1's 10-pin XLR connection works with an included breakout cable that separates the four capsule signals into individual 3-pin XLR outputs for multichannel recording. Each channel requires 48V phantom power, allowing the microphone to interface with compatible four-channel recorders, preamps or audio interfaces. An included suspension shockmount helps reduce handling and vibration noise, while the windshield and furry wind cover provide protection against wind interference during location recording. The RØDE SoundField NT-SF1 brings full-sphere recording and post-production perspective control into a single microphone system for immersive audio creation.

Features

  • Ambisonic condenser microphone combines full-sphere recording with post-production spatial control
  • Four matched 1/2" TF-45C capsules in a tetrahedral array capture sound from every direction
  • Four discrete A-Format channels preserve directional information for spatial processing
  • SoundField plug-in adjusts virtual microphone directionality, orientation and polar response
  • Software decoding supports mono, stereo and surround outputs up to 7.1.4
  • 20Hz–20kHz frequency range and 129dB max SPL accommodate varied sound sources
  • Included breakout cable connects the 10-pin XLR output to four 3-pin XLR inputs
  • Shockmount reduces vibration noise while included wind covers help limit wind interference

Specs

General
  • Product type: Ambisonic condenser microphone
  • Model: NT-SF1
Microphone
  • Microphone type: True condenser
  • Acoustic principle: Externally biased
  • Impedance converter: JFET with bipolar output buffer
  • Recording format: 4-channel A-Format
Capsules and Polar Patterns
  • Capsules: 4 matched TF-45C
  • Capsule size: 1/2"
  • Capsule polar pattern: Cardioid
  • Capsule arrangement: Tetrahedral
Audio Performance
  • Frequency response: 30Hz–20kHz (±3dB), 20Hz–20kHz (±4dB)
  • Maximum SPL: 129dB
  • Equivalent noise level: 17dB SPL (A-weighted)
  • Signal-to-noise ratio: 77dB
  • Sensitivity: −30.4dB re 1V/Pa
  • Output impedance: 63 ohm
Connectivity
  • Microphone connection: 10-pin XLR
  • Breakout connections: 4 x 3-pin XLR
Power
  • Phantom power: 48V per channel
  • Current consumption: 6.2mA per channel
Software
  • Processing software: SoundField by RØDE
  • Virtual microphone controls: Directionality, orientation, polar response
  • Decoded output formats: Mono, stereo, surround up to 7.1.4
Dimensions and Weight
  • Body diameter: 0.99"
  • Maximum width: 1.80"
  • Length: 7.57"
  • Weight: 0.63 lb.
Included Accessories
  • Accessories: 10-pin XLR to four 3-pin XLR breakout cable, suspension shockmount, windshield, furry wind cover

Warranty

One year warranty.

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