CEDAR SE 1 Portable 2-Channel Speech Enhancer with Case

CEDAR SE 1 Portable 2-Channel Speech Enhancer with Case

Crafted in response to the specific needs of police, security, and counter-terrorism units, the CEDAR SE 1 Speech Enhancer fulfills the essential requirements for covert audio surveillance systems. Engineered to be rugged, compact, and lightweight, it is designed for simplicity of operation and is versatile enough to run on both batteries and mains power for field applications. Consulting with various forces and agencies during the design process, CEDAR SE 1 incorporates two channels of advanced filtering and speech enhancement. Positioned between the probes (microphones) and headphones, it ensures minimal latency, straightforward controls, and a 12V power input for operation on mains or battery power. These features collectively make the CEDAR SE 1 Speech Enhancer an ideal choice for covert surveillance and swift tactical response.

The compact SE 1, enclosed in a sturdy case, is portable enough to fit into your pocket while delivering advanced audio processing capabilities for field operatives. Effectively monitoring audio, reducing noise, and enhancing listenability in challenging conditions, the SE 1 offers flexibility. It seamlessly integrates with other equipment through analog or digital inputs and outputs, featuring two independent headphone outputs for live monitoring directly from the unit. With a single SE 1, you can monitor two microphones in one location, enable two listeners to monitor single microphones in separate locations or generate two output signals – the untreated audio and the filtered audio. This allows courts and investigators to hear both the original sound and the filtered version.

With two simultaneous processes that maximize listenability and intelligibility, the SE 1's audio processing is significantly more advanced than that of traditional noise reduction solutions. The first is a robust noise suppressor built on the innovative FNR forensic noise reduction system developed by CEDAR. The second filter is a dynamic signal enhancement filter designed to enhance voice clarity. It includes a limiter to prevent output clipping distortion in the event of an abrupt loud sound while monitoring a signal that is normally quiet.

Key Features

• improving signal quality and intelligibility during live surveillance
• enhancing the clarity of real-time communications
• making transcription easier and more accurate

• A unique speech enhancement process
• Super-fast setup and control
• Small, light, and portable
• Analog and digital I/O
• Dual independent headphone outputs
• 12V power

DSP

• Two linkable channels of CEDAR processing
• Floating point processor, 2.4 GFLOP/s, 40-bit resolution
• Sample rate: 44.1kHz

AD/DA conversion

• 24-bit linear PCM
• Sample rate 44.1kHz

Line input

• Connector: RCA
• Impedance: >22kΩ
• Nominal signal level (0dB gain): -10dBV
• Clipping level (0dB gain): +4dBV
• Dynamic range (0dB gain): >100dB (AES17, A-weighted)
• THD+N (0dB gain): <0.01%
• Maximum gain: +20dB
• Minimum gain: -6dB
• Max input level (-6dB gain): +10dBV

Digital input

• Connector: RCA
• Format: SPDIF (IEC60958)
• Sample rate sync. range: 40kHz - 50kHz
• Maximum gain: +6dB
• Minimum gain: -20dB

Line output

• Connector: RCA
• Nominal signal level: -10dBV
• Maximum output: +4dBV
• Dynamic range: >100dB (AES17, A-weighted)
• THD+N: <0.01%
• Output impedance: 150Ω
• Minimum load impedance: 2kΩ
• Short circuit protection: Indefinite

Digital output

• Connector: Unbalanced RCA
• Format: SPDIF (IEC60958)
• Sample rate (internal sync): 44.1kHz (+/-50ppm)
• Sample rate (external sync): locked to SPDIF input

Headphone output

• Connector: 6.35mm stereo jack
• Maximum output power: 90mW into 32Ω @ 1.7VRMS
• Dynamic range: >100dB (AES17, A-weighted)
• THD+N: <0.05% into 32Ω @ 1VRMS (32mW)
• Minimum load impedance: 16Ω
• Short circuit protection: Indefinite

Power

• 8VDC to 17.5VDC (nominal 12V)
• Power consumption: 4W typical
• Mains operation (85VAC - 250VAC, 50-60Hz) via supplied UK/US/EU/AUS 12V adapter

Physical

• Dimensions: 164mm x 110mm x 44mm
• Weight: <500g