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Pierre Lecomte 2023-05-24 15:44:01 +02:00
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@ -4,7 +4,7 @@ Spherical Microphone Arrays Little Library
Copyright 2023 Pierre Lecomte - sekisushai@gmail.com Copyright 2023 Pierre Lecomte - sekisushai@gmail.com
The SMALL library provides an open-source set of Computer Aided Designs (CAD)s to easily The SMALL library provides an open-source set of Computer Aided Designs (CAD)s to easily
build Spherical Microphone Arrays (SMA)s prototype for research or home use. The build Spherical Microphone Arrays (SMA)s (i.e. Ambisonics mics) for research or home use. The
designs are made with opensCAD, they are customizable and the different parts designs are made with opensCAD, they are customizable and the different parts
can be directly 3D printed. Extra standard mechanical assembly elements may be can be directly 3D printed. Extra standard mechanical assembly elements may be
required such as screws or metal rods. required such as screws or metal rods.
@ -22,6 +22,13 @@ The designs are in the `cad` folder:
Examples of SMA configurations are provide in `.json` files. Examples of SMA configurations are provide in `.json` files.
See the documentation in `.scad` files to create or customize a SMA design. See the documentation in `.scad` files to create or customize a SMA design.
# SMA signal processing
To encode the microphones signals onto Spherical Harmonics signals (i.e. Ambisonics signals), one can use ambitools.
See www.sekisushai.net/ambitools/docs/mic_encoder.html for more infos.
# SMA calibration with a robotic arm
If you build a prototype by using the SMALL library, let me know ;) If you build a prototype by using the SMALL library, let me know ;)