Note: The new VBC/ABC 2500a models include support and connectivity for Assisted Listening Systems (ALS) (3.5mm mono jack) that mirrors the speaker output.
- The audio data source for the ALS output is the same as that for the loudspeakers but does not have the same DSP processing as that applied to the loudspeaker. (This channel level should be non-variable to the ALS system)
- Parlé microphone audio is not fed to the ALS output.
- ALS output is a balanced (differential) signal with a max output level of 0 dBu (0.755 Vrms)
Microphones and DSP processing
The VBC 2500 conferencing bar is designed around the same technology that is in the Parlé and Tesira products in one hardware device. Using 27 mics arranged in a vertical and horizontal array pattern, the ABC 2500 allows for pattern control on the Azimuth and Vertical fields of the room. In addition to the microphone array technology, the bar incorporates all the DSP elements that go into the Tesira products with an additional level of performance due to the nature of an all in one solution.
Mic array and DSP features of the Parlé VBC 2500
- 27 Element Mic Array (Horizontal and Vertical)
- Tuned for Voice
- Three Tracking Arrays
- Advanced BeamTracking, Gain Control, Noise Cancelation and AEC processing
The large number of spaced capsules allow for mics to be setup as “clusters” forming very tight coverage over more frequencies on both the Azimuth and Vertical zones in the room. This allows for accurate tracking of seated or standing participants without the pickup of HVAC, adjacent room, or fan noise.
Parlé capsule clusters are positioned and tuned to be focused in the speech range. This allows for an optimized approach of speech pickup even before DSP is introduced. This helps to get the best speech sound to the microphone before any additional processing is added.
Biamp AI Noise Reduction
The Parlé ABC 2500 and VBC 2500 bars also feature Biamp’s newest noise reduction algorithm that provides reduction of stationary room noise as well as non-stationary room sources. Previous noise reduction focused on sources in the room that were steady and made adjustments to reduce or remove. In our newest noise reduction intelligence, non stationary room sources that are short in duration or have a high variability can be reduced in the same manner.
This noise reduction is based on a deep learning algorithm that uses matching learning to identify and isolate human speech from other sources such as typing, coughing, or sounds from outside the room.
AGC and Echo cancellation
Parlé conferencing bars feature the same onboard DSP technology as featured in the Tesira and Devio families to ensure optimum performance. This includes acoustic echo cancellation, AGC, speech sense, and non linear processing.
Speakers and Amplification
Both VBC 2500 and ABC 2500 conferencing bars have speaker components to provide the best in room audio performance. Stereo speakers have been provided to prepare for UC stereo conferencing needs.
- 60mm low distortion drivers are provided for uniform wide coverage.
- The innovative enclosure design includes high volume, sealed enclosures that allow for complete isolation of the speaker assembly, passive radiator from the other bar components within the chassis.
- Dynamic Bass enhancement (DBE) is included to enhance low frequency content when at lower volumes, as well as ensure zoro low-end distortions at high volumes.
- 20W x 2 onboard amplification with distortion compensation DSP to maximize enclosure efficiency.
Camera
The VBC 2500 is designed around a 12MP image sensor for a 4K, 120° field of view. It is great fit for huddle spaces, or small to medium conference room design applications. The VBC 2500 incorporates Biamp Video Intelligence technology into its onboard DSP to provide a strong features that optimize camera performance to the far side participants. Below is a list of the features included in the VBC 2500 onboard camera.
- LED indications for camera activity
- 4K, wide angle 120° field of view
- Electric Pan/Tilt/Zoom with 5x zoom
- Auto framing technology to keep participants in view
- Automatic privacy shutter
- Preset Recall
- Biamp Camera Control app for PC/MAC control and updates
- UVC camera control
Connectivity
- USB-C locking connection with provided USB cables
- USB-C to USB C, 1M length, 20GBit/Sec Rated
- Locking 12VDC ~5A Power adapter is included and recommended for most applications.
- Note: Locking supply connection must be fully tightened and seated for proper power to be supplied to bar. If issue with enumeration is present, check for proper power supply seating.
- VBC 2500a models include an additional 3.5mm mono balanced output for connectivity to Assisted Listening Systems (ALS). This mirrors the speaker output of the bar. Microphone signal is not fed to this output.
Integrated cable cover snaps in place for clean install. Includes rear panel mounting points for table, wall, or VESA mounts.
Mounting and Accessories
The ABC 2500 and VBC 2500 ship with included table and wall mounts in the box for easy installation. Both included mounts attach via 4 mounting screws to the rear of the bar. The included wall mount allows for direct install to wall surface with cable pass-thru for ease of installation.
- The Parle PMA 2000-DM accessory is a VESA mount adapter to allow for both the ABC 2500 and VBC 2500 to be attached to a display with top or bottom orientation.
- PMA 2000-DM CAD resources
- The Parle PS-12-60 12VDC power supply is included with ABC/VBC 2500 hardware but may also be purchased separately if a replacement is needed.
SPECIFICATIONS
MICROPHONES
Microphone Technology: 27-Element Digital Array
Frequency Response (100 Hz – 8 kHz): -10dB
Polar Pattern: Active Beamformed
Pickup Range (25dBA noise floor): > 23 feet (7 m)
SNR (@ 1kHz, 94dB SPL, A-Weighted): 69 dB
Maximum SPL (@ 1kHz, THD < 10%): 130 dB
Indicators: Mute Indicator
(Green/Red/Off LEDs)
Sensitivity (@ 1Pa): > -37dBFS ± 1dB
Microphone Data Rate Output: 48 kHz
Audio Processing: AEC (Acoustic Echo Cancellation)
Noise Reduction: AI filter
CAMERA
Diagonal Field of View: 120 Degrees
Horizontal Field of View: 109 Degrees
Vertical Field of View: 75 Degrees
Image Sensor: 12 Megapixel
Focus Distance: 100 cm
Digital Zoom: 5x
Lens Cap: Automated Privacy Shutter
Positioning: Autoframing capability
Electronic Pan/Tilt/Zoom
Indicators: Camera Active Indicator
(White/Off LED)
Supported Video Resolutions: 720p @ 30fps
1080p @ 30fps
2160p @ 30fps
LOUDSPEAKERS
Frequency Response (57 Hz – 20 kHz): -10 dB
Nominal Beamwidth (H x V): 180° x 180°
Transducers: 2x 2.5 in (60 mm) full range
Rated Maximum SPL (@ 1m): 90 dB (continuous)
96 dB (peak)
Sensitivity (@ 1m, 2.83V): 84 dB
THD (@ 1kHz): < 0.2%
Nominal Impedance: 4Ω
Continuous Rated Power
(6 dB crest factor, HPF @ 60 Hz): 20W
Sampling Rate: 48 kHz
Interfaces
USB 3.0: 1x Type C
Assistive Listening Feed: 1x 3.5mm mono balanced
Power Sources
USB-C: 60W
External Power Supply: 100-240VAC 50/60Hz
(12VDC, 4.74A)
Overall Dimensions
Height: 3.9 inches (100 mm)
Width: 37 inches (940 mm)
Depth: 2.5 inches (64 mm)
Weight: 9.6 lbs (4.4 kg)
