Dynamics Processors
Compressors, limiters, noise gates, companding and other dynamics processing are still handled in the analogue domain for performance advantages, before the signal is converted into the digital domain. Analog Engines from THAT Corporation are an ideal building block and THAT provide many supporting application notes to steer you through the possibilities.
The ideal op-amps to accompany the Analog Engines are either the NJM8068 for ±15V voltage rails, or the NJM8202 for +5V rails or similar.
In the digital domain, DREAM offers an extensive free-to-use library of dynamics algorithms for use with their SAM5000 DSP range.
Recommended parts:
THAT2181BS08-UTrimmable High Performance VCA
- Wide Dynamic Range: >120dB
- Wide Gain Range: >130dB
- Exponential (dB) Gain Control
THAT340S14-ULow Noise Transistor Array
- 2 matched PNP Transistors
- 2 matched NPN Transistors
- Low Noise 0.8nV/√Hz (NPN) 0.75nV/√Hz (PNP)
- High Speed 350MHz (NPN) 325MHz (PNP)
THAT4305Q16-U'Analog Engine' Dynamics Processor
- Pre-trimmed VCA and RMS-level detector
- Wide supply voltage range: ±4.5V to ±16V
- Low supply current: 3.5 mA typ. (±15V)
- Wide dynamic range: 117 dB (VCA),60 dB (RMS-level detector)
SAM5704BEffects Processor and Keyboard Synthesizer
- Up to 81 voice Polyphony (with effects)
- Dream DSP Array of 4 new 24bit/56bit DSP cores (P24XT) supporting 56bit MAC operations (200M MAC/sec)
- New speed optimized 16bit CPU (P16XT) running at 200MHz
- Built-in 1kbit eFuse for configuration and security (program code and sound bank protection)
NJM8068G-TE2Low Noise Bipolar Input Dual
- New Pro-Audio Grade Op Amp
- Low Cost
- Extended Temperature Range -40℃ to +125℃
