miniDSP Ltd, Hong Kong /
/ Features and specifications subject to change without prior notice
17
7
A
DDITIONAL
I
NFORMATION
7.1
S
PECIFICATIONS
Item
Description
USB streaming engine
XMOS XSVM 3000 - Multicore USB audio processor with embedded DSP
USB audio capabilities
USB audio recording in 2 possible modes depending on firmware:
- 8-channel mode (7 x MEMS ins 1 x spare PDM port in the center)
- Stereo recording with DSP processing enabled
USB audio playback: 2ch fed to stereo amplifier
DSP processing (prebuilt firmware)
•
Beamforming with configurable beam width (up to 20dB attenuation)
•
Perceptual acoustic echo cancellation (up to 80dB attenuation)
•
Noise suppression (up to 20dB attenuation)
•
De-reverb ( up to 20dB attenuation)
UAC2.0 drivers
Driverless interface for Mac OS X v10.6.4 and up
Thesycon Windows ASIO driver (All versions)
Linux Alsa 2.0 compliant
Resolution / Sample rate
24bit @ 11/16/32/44.1/48 kHz
Amplifier output
Stereo class D amplifier / 2x15Wrms amplifier output (Mono Audio Output)
>90% efficiency at full power.
MEMS microphones
7 x Knowles SPH1668LM4H with low noise buffer and high performance modulator
•
Low distortion: 1.6% @ 120 dB SPL
•
High SNR: 65 dB and flat frequency response
•
RF shielded against mobile interference
•
Ominidirectional pick-up pattern
LED
12 x RGB LED / Bottom mounted
Expansion connector
2 x 12-pin, 2 mm pitch expansion connector for connectivity to hardware.
Power supply
USB powered (Amplifier disabled) or +12VDC (Amplifier enabled)
Dimensions (diameter) mm
90 mm diameter / 20mm height with LED ring, 14mm height without LED ring