 Fernando Pablo Lopez-Lezcano
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93f1b33b9d
change design of bottom connector housing to use only the core metal part of the connector, much simpler and easier to attach using the two screws included with the connector (that would normally attach the internal strain relief); remove unnecessary external connector lock collar; redesign snap joint so that arm is stronger - this is still not optimal
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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bf21f9eaac
minor changes to EM200 and EM182 files to make sure nothing renders by default
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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8560803359
add new capsule holder connection legs, horizontal with slanted top and dual fingers with support, interlocks much better than the previous version but only works for small microphone array radius (no error checking at this point), this is now the default; add bottom flare to microphone body that can house a 12 pin connector, includes a side collar that locks the connector in place; add click locks for snapping the top and bottom flares to the body of the microphone; modify the capsule array mount to include four holes for the individual capsule cables so that there is no connection to the resonant cavity below; change defaults for the mount so that the bottom two capsules snap more securely into the mount
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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6f235ce629
calibration: add optional high pass shelf filter to the design function, this can be used to enhance the high frequency response of the microphone
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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90d94d9f89
calibration: add drc configuration files
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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efc97e0b2e
calibration: add shell script to create the DRC calibration filter, change path where the filter is stored
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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473eb2a4b4
calibration: add sphear_bf_plot_directions: plot principal and diagonal directions for signals recorded from tetraproc and using the calculated FIR filter matrix; record_tetraproc_b_format: pyecasound script to play calibrated IRs through tetraproc and record the B format output to files
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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4c21f9a835
calibration: sphear_fir_render_directions: select which directions to plot for each B format component, porperly plot power, redo plotting code
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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1ec5a8ceea
calibration: read calibrated A format files instead of original files
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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7290fafa25
calibration: add sphear_af_calibrate, read reference signal, convolve with DRC generated equalization filter and filter and write to disk all recorded A format signals
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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21b0c51f1a
calibration: add emacs octave mode magic, some path changes
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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72a0e213ec
calibration: path changes, add emacs mode control
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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89368690e5
sphear_fir_design: add tentative code to add an optional high frequency boost; create running averages for the A2B matrices and WXYZ filter shapes - both going up to the transition frequency and also down so that the transition between the two modes is smoother; plot signal power; make sure FIR size is correct, it was off by one
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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fbc09beef5
sphear_common: pad signal with trailing zeroes to let the fir filter ring, use twice the size of the fir filter
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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8a85875853
sphear_a2b_all: add option to define where the transition frequency is located with respect to the maximum condition number of the A2B matrices
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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8a4db5e5c1
calibration: assume all impulse responses have been trimmed and windowed properly, do not try to determine impulse location; many changes in parameters and parameter order; do a running average of filter coefficients when designing the filter transition; determine the transition frequency automatically based on the maximum condition number of the A2B matrices
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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b1a1dbeb7a
SpHEAR_common: a couple of small changes to the shock mount internal rings
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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45711bc7b1
calibration: remove dependencies on dates for measured data, replace with 'current' which should be a link to the current set
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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8b5ac6996d
trim sides of columns at the bottom, make the bridge smaller and cut the connector from the columns to have more space to route wires
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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cb04cae2e8
h2n: major reorganization of the code, factor blocks into several modules, make everything tilt according to the angle of the support columns, clean up all the major and minor junctures between pieces, almost everything seems to fall into place automatically
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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6e94c2d6f9
h2n: add parameter to control the fit between the columns and the bridge
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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750c0b91ec
h2n: cut slots at the bottom of the columns so that we can install the bridge with the wires already threaded into the recorder
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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304a0be9f6
h2n: bridge now renders correctly with no invisible gaps
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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3104575ec4
h2n: change orientation of cylinder cutout in columns, this should print better
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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389b4ed6b4
h2n: change triangular bridge to simple rounded rectangle, modularize most parts, many small changes in shapes - may not be a valid 2-manifold so we need to look at the fit of all parts so they fuse together
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9 years ago |
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Fernando Pablo Lopez-Lezcano
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d0d9ae83c4
add first try at H2N external capsule array
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10 years ago |
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Fernando Pablo Lopez-Lezcano
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f6a275ed95
zapnspark: transform molex pin connector pads into smd pads to solder wires directly to the pcb instead of using connectors, should make it slightly easier to assemble the microphone; manually update the component location pdf and svg with new locations
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10 years ago |
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Fernando Pablo Lopez-Lezcano
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b8eb2f8f92
some tolerance changes for better fit of the parts, fix shock mount eyelet, add hexagonal screw head insert to the stand mount eyelet so that the screw locks properly
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10 years ago |
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Fernando Pablo Lopez-Lezcano
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89226e2fec
make corners of body more rounded
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10 years ago |
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Fernando Pablo Lopez-Lezcano
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42bcb85780
zapnspark pcb: move transistors closer together to help fitting the four boards together
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10 years ago |
