miniSHARC 4x8 Plug-in
miniSHARC 4x8 plug-in v1.0
The miniSHARC 4x8 plug-in v1.0 is the a versatile plug-in for the miniSHARC product line. Providing FIR and IIR filtering in large banks of biquads (20/ch) and FIR taps (Up to 10240taps total), this plug-in is well fitted for no compromise multi-way crossover filter applications. Please consult the user manual of the miniSHARC for more info.
Algorithm and plug-in configuration
Item
Description
Sampling frequency / Resolution
48kHz or 96kHz sample rate depending on plug-in /32bit floating point
Inputs
2 input channels from I2S on pin 10 of the miniSHARC
2 input channels from SPDIF RX pins . Includes ASRC to match DSP sample rate (44.1 ~ 192kHz)
Outputs
8 output channels via I2S digital pin 16/17/18/19 of the miniSHARC
Output 7&8 from the plug-in is duplicated to SPDIF TX pin 2 of the miniSHARC
Input mute/select
Click-less input mute per channel and input selection
Digital gain
Fader gain from +12dB to –72dB
Input/ Output meters
Real time monitoring of all channels with RMS meter.
FIR filter section
Up to 9600 @48kHz /3400 @ 96kHz total taps available for the whole platform.
Freely available in 8 x FIR sections (1 on each output) with up to 2048 taps each
Text input or file input (.bin in IEEE754 format)
Crossover Filters - Low/High Pass (IIR)
Butterworth up to 8th order (6 to 48dB/oct) / Linkwitz-Riley up to 8th order (12 to 48dB/oct) / Bessel
Frequency: 10Hz to 20kHz in 1Hz increments
Parametric Equalizers (PEQ)
(Peak/Low&High shelve / Custom)
10 PEQ bands per input, 10 PEQ bands per output
Frequency: 10Hz to 20kHz, 1Hz increments
Gain: 0 to 16dB, 0.1dB increments / Q: 0.5 to 50, 0.1digit increment
Type: Peak of Shelf (low/high) & Per-band bypass feature
Advanced mode for custom biquad
Filter input via Text file for all biquad filters (PEQ or crossovers)
Matrix Mixer
Central mixer for 4 x 8 cross-point configuration (ON/OFF)
Delay (time alignment)
Up to 3000ms (3s) per channel (3m) in 0.02ms increments
Polarity
Invert polarity 180degree per channel
Compressor/Limiter
Per channel Comp/Lim on all outputs. Controls for Threshold/Ratio/Attack/Release & Bypass
Output mute
Individual output mute
Master output gain
Control master output digital gain fader from –80 to 0dB via VOL-FP accessory
(Purchased separately)
IR Learning remote
Learn control commands from NEC/Philips/Sony remote/Apple remote
SYSTEM DIAGRAM
I2S OUTPUTS
I2S Inputs
I2S#1
Mute
Level
Meter
PEQ
10 bands
Mute
Level
Meter
PEQ
10 bands
SPDIF Inputs
IN#1
Mute
Level
Meter
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT#1
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT#2
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT#3
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
PIN#17
OUT#4
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT#6
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT#7
LPF + HPF
PEQ - 10 bands
FIR Taps
Gain/Phase/Delay/RMS Meter/Comp&Limit
OUT#8
PIN#16
PIN#10
I2S#2
LPF + HPF
PEQ
10 bands
Matrix
Switcher
4x8
(ON/
OFF)
PIN#18
PIN#1
IN#2
Mute
Level
Meter
PIN#19
PEQ
10 bands
miniSHARC 4x8 plug-in v1.0
CROSSOVER SECTION
Wide range of filter choices Up to 8th order (48dB/oct)
Channel linking feature to link up settings to Left & Right channels
Bypass feature to listen to the effect of filter settings
Advanced Biquad format to enter your own biquad format
FIR SECTION
Up to 9600 taps @ 48k / 3400 @96k freely assignable
in 8 sections of up to 2048 taps
File Mode accepts binary file (.bin) as IEEE754 format
Manual Mode accepts manual input of taps
Advanced mode to input custom biquads per channel
Real time channel linking to keep PEQ settings of two
channels synchronized
PARAMETRIC EQUALIZER SECTION / MATRIX MIXER FOR ROUTING
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