 Fernando Pablo Lopez-Lezcano
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fd645446e9
calibration: we want to preserve the sign when transforming filter into minimum phase
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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2ab4f51768
calibration: we want to preserve the sign when transforming filter into minimum phase
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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b24a6aac9d
calibration: A2B was broken for tetrahedral mic, probably due to tests when starting work on the Octathingy, sigh
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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a786ab3018
findpeaks: pcurv can be zero, avoid that...
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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bdb607df74
cal: add encoder design example for the Octathingy (work in progress)
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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8da11abe0b
cal: add function to design fir filters for capsule equalization
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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d26f39f433
cal: some line type changes in the plot of the filters
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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8c7d8df336
cal: some fixes and additions when plotting capsule frequency response
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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d8779918bf
cal: many changes to the support function to sort capsule measurements for matching them
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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3d14632413
cal: add normal drc profile (we still use the minimal profile)
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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d583a725bc
cal: modify arrival time function to use new version of findpeaks
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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01f0180ce2
cal: add functions for capsule calibration, fix gain normalization in case of negative values of power for S/T, adapt wobble fix to new version of findpeaks
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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7900d0d7e3
cal: add new version of findpeaks (Julius Smith) with quadratic interpolation of the peaks
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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8bb538dd21
tinysphear: the flare to the bottom connector is created upside down with respect to the flare to the capsules so the screw rotation has to be reversed, otherwise the screw holes do not match with the body
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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c955ab0c7d
octathingy: tweak some dimensions, add screw holes for securing both halves of the core sphere instead of gluing them together (makes it possible to repair or replace a capsule)
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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cca0033324
octathingy: make top of capsule holder can be a big thicker
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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5bb312dad9
octathingy: change slots in capsule holder so they are bigger (now 10 slots), add overhang to stop the capsule when inserted into holder, add flange and guide for inserting stalk into body flare, remove old code
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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2d09df5241
tinysphear: first redesign with smaller pcb (version 2)
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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0271d2c1ac
octathingy: first redesign with smaller pcb design (version 2)
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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accb92e813
octathingy: first version of new capsule array, use conical capsule holders and a core split into two halves joined by an internal ring - first prototype print shows good performance
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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8590168d72
calibration: add support for plotting ST second order filter shapes
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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64907233f5
calibration: add code to process several horizontal layers of measurements
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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a2b737fbb5
calibration: better determination of average signal arrival time for compensating array wobble during calibration measurements
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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c8f72c59c0
calibration: add preliminary support for ST second order components for Octathingy calibration
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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726afd9fe9
zapnspark_v2: change C3/C5 from 22 to 33uF in parts list
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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365ee2dd23
zapnspark: remove some markup from the schematic
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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a0eaaf19a7
zapnspark_v2: change C3/C5 from 22 to 33uF (same size, slightly better filtering)
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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cb5b77a26f
zapnspark: fix a couple of typos
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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4c81cfc8b5
zapnspark_v2: too many changes to detail here, fixed orientation of diodes and transistors in the footprint editor, added back silk screen with pad names, added annotations to front silk screen, checked against schematic for correctness, moved some parts around to make wiring saner, added ground plane on top layer and many more details
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8 lat temu |
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Fernando Pablo Lopez-Lezcano
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10b38e1280
zapnspark_v2: add updated parts list for v2 board
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8 lat temu |
