Holger Wirtz
2621f21e1f
Removed old code from chorus feedback and delay offset.
5 years ago
Holger Wirtz
ead7fce6ed
Removes feedback and delay-offset completely.
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Added simple description how to test the hardware on Linux inside config.h
Compile time option for using an output filter (and which type and cutoff) added
inside config.h
5 years ago
Holger Wirtz
f2ae246fe0
Fixed some debugging information.
5 years ago
Holger Wirtz
4244fe6727
Several small fixes for modulated delay offset and amplitude calculation.
5 years ago
Holger Wirtz
4dcc68e42c
Rewrite of delay offset for modulated-delay.
5 years ago
2e471e4005
Exchanged delay offset calculation from time to bytes (or better percent).
5 years ago
74fa933c57
Fixing inital chorus values.
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Fixing volume parameters.
5 years ago
Holger Wirtz
c0d6c9a0e6
Fixing mono/stereo switch.
5 years ago
Holger Wirtz
fd95535018
Added Mono/Stereo switch.
5 years ago
Holger Wirtz
cb917f3a2b
Fixing setting negative numbers for eq_treble and eq_bass.
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Fixing chorus feedback.
5 years ago
Holger Wirtz
d612830933
Adding a fixed biquad filter at the output of the modulated delay.
5 years ago
Holger Wirtz
0d81191ade
Fixing modulated delay feedback routing.
5 years ago
Holger Wirtz
a0cca8375d
Fixes for modulated delay feedback.
5 years ago
Holger Wirtz
0521b5d839
Fixed initial modulated delay offset when loading a sound.
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Removed modulated_delay internal feedback loop and added an "external" feedback lopp with a mixer.
5 years ago
Holger Wirtz
a86828d58e
Small fixes.
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Boundary checks for setting parameters added.
5 years ago
Holger Wirtz
a11d7791df
Removed old mozzi test code.
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Added displaying name of chorus waveform in menu.
Added a copy of Teensy audio library SynthWaveform for adding a method for
changing the waveform at runtime. Don't know if this can also be done without
this method...
5 years ago
Holger Wirtz
b85b6592dd
Removed debug code.
5 years ago
Holger Wirtz
bf0a407059
Added menus for chorus feedback and waveform.
5 years ago
47fea61034
Added new HEX file.
5 years ago
Holger Wirtz
7ece8305b4
Hopefully fixed the modulated delay.
5 years ago
Holger Wirtz
81ce42ec63
Added function for LP coefficient calculation based on frequency and q.
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Small fixes for calculating the delay offset.
5 years ago
8d8ee66397
Save the current state.
5 years ago
Holger Wirtz
449c7f72d1
Added tests for DC-filter.
5 years ago
Holger Wirtz
296fa08774
Several fixes and additions for filtering chorus modulator nd output.
5 years ago
Holger Wirtz
4d04f28815
Next test.
5 years ago
7efc9854c1
Testing with two modulators (triangle and sine) added together.
5 years ago
Holger Wirtz
8833124c4f
Added function for coeff-calculation.
5 years ago
Holger Wirtz
23c4ac1a53
Added URLs for demo code.
5 years ago
Holger Wirtz
bd236aa711
Fixing coefficients.
5 years ago
Holger Wirtz
3393c60ed6
Filter for modulator implemented again (just testing).
5 years ago
Holger Wirtz
f8d7c097ac
Simple 1st-order filter test, as BlackAddr sugested: https://forum.pjrc.com/threads/56532-Modulated-Delay-Chorus-Flanger?highlight=Chorus
5 years ago
444d823cd1
Next try...
5 years ago
Holger Wirtz
a06ebe76fe
Trying again with Chamberlin filter for modulation to smooth the used
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modulation waveform.
Renamed some vars for better reading.
Made the used core algorithm easier - hopefully it works and the sound is
better than before.
5 years ago
Holger Wirtz
9cad9262d5
Chorus fixes.
5 years ago
Holger Wirtz
c2549adcab
Added arm_biquad LP filter for modulation.
5 years ago
Holger Wirtz
2989ea2eac
Fixes.
5 years ago
1356774e8e
Removed chorus_intensity because modulator.amplitude can be used.
5 years ago
Holger Wirtz
3f5f754460
Changed chorus mix-in.
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Small fixes for interpolation.
5 years ago
Holger Wirtz
78aac5e8a9
Code cleanup and small fixes.
5 years ago
b48aa7bb9a
Removed code for spline interpolation.
5 years ago
Holger Wirtz
0e91d775f7
New try for linear interpolation.
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Added a lowpass after chorus output.
5 years ago
Holger Wirtz
0027b62530
Several fixes.
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Hopefully working interpolation (Catmull currently does not work because of too high CPU usage and xruns).
5 years ago
Holger Wirtz
9efd4e6f03
Small fixes.
5 years ago
Holger Wirtz
6bd662b602
Added spline interpolation again.
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Using Teensy biquad lowpass for filtering the modulator signal.
5 years ago
Holger Wirtz
e85dbd43b8
Removed Splie interpolation.
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Tried another calculation for filter coefficients.
5 years ago
Holger Wirtz
bf75622652
Testing with fixed values.
5 years ago
Holger Wirtz
cd891c4f98
Replaced own filter functions with CMSIS library function calls.
5 years ago
Holger Wirtz
807d152020
Added IIR filter (1-order, 3-order) for filtering LP-filtering the mdulation
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signal at 5000 Hz (just for testing).
5 years ago
Holger Wirtz
b6180721d8
Fixed rounding of floats for working with negative numbers.
5 years ago
Holger Wirtz
be62fba2e0
Slightly better simple interpolation code.
6 years ago
Holger Wirtz