Integrated development suite for Sound Terminal
digital audio processors and MEMS microphones
Logger window exposing all I/O transactions
C operations) and RAM operations, for both
registers and coefficients
Scripting language to instruct configuration
commands from either the integrated console
or archived text files
Seamless connection with the device under
test (DUT) via proprietary USB interfaces:
– APWLink (STEVAL-CCA035V1)
– STAudioHub (STEVAL-MKI138V1)
Comprehensive audio development suite
based on proprietary technology from
Integrated Launch-Wizard with sub-family and
Intuitive and user-friendly multi-tab interface
with grouped device controls
Virtual scopes and FFT analyzer for real-time
visualization of acquired signals (MEMS
microphone kit required)
Specialized graphical controls to intuitively
configure complex audio IPs:
– Crossover filtering computation
– Multi-band DRC / Limiters
– Automated speaker compensation
Full access to the I
C register map of the
Point-and-click programmable equalizer
offering various types of filters:
– Peak, low/high-pass, low/high-shelf, notch,
Convenient preset memories to quickly
store/recall user configurations
Home entertainment systems
The APWorkbench software suite provides a
comprehensive environment for the customer to
explore, evaluate and configure devices within
ST’s product portfolio for audio applications,
including stereo and multi-channel amplifiers,
DSP and digital MEMS microphones. The tool
represents a unique solution enabling the user to
conveniently evaluate, configure and tune
advanced audio IPs embedded in ST’s Sound
products. Custom controls and a user-
friendly graphical interface expose the complexity
of today's audio devices in a simple and intuitive
manner, guiding the novice through the basic
configuration steps and providing acoustic
expertise to tune the devices for optimal
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For further information contact your local STMicroelectronics sales office.
The Sound Terminal
demonstration boards can be thoroughly controlled by APWorkbench
through a USB-connected interface (APWLink, STEVAL-CCA035V1).
Digital MEMS microphones can be evaluated using a specific demonstration kit, based on
the STA321MP microphone processor (STSmartVoice demonstration board,
STEVAL-MKI126V1 or STEVAL-MKI126V3), and connected to the PC via a USB interface
(STAudioHub interface, STEVAL-MKI138V1). The STSmartVoice kit is digitally controlled by
APWorkbench and the sound recorded from the microphones can be analyzed and visually
represented by means of real-time virtual instrumentation (oscilloscopes, spectrum
analyzers, etc.). Up to six digitally connected microphones can be processed. This
comprehensive microphone kit, enhanced by the APWorkbench suite, represents a unique
solution on the market and enables a digital MEMS microphone offering for the mass
Table 1. Ordering codes for demonstration kits
Product demonstration boards:
Refer to www.st.com/soundterminal for more information
STEVAL-MKI126V1 (based on the MP45DT02)
STEVAL-MKI126V3 (based on the MP34DT01)
Optional MEMS microphone coupon boards:
STEVAL-MKI129V1 (based on the MP45DT02)
STEVAL-MKI129V2 (based on the MP34DB01)
STEVAL-MKI129V3 (based on the MP34DT01)
USB interface board
Digital MEMS microphones
Demonstration kits are also available through electronic components distributors.
- Software Development Suite
– Acoustic Sensors
– Digital Audio Subsystems
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Table 2. Document revision history
Modified note on page 2.
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