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Add oscilloscope for audio with frequency counter #14

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kevinjwalters opened this issue Jan 7, 2024 · 2 comments
Open

Add oscilloscope for audio with frequency counter #14

kevinjwalters opened this issue Jan 7, 2024 · 2 comments

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@kevinjwalters
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kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 7, 2024
First stab at an oscilloscope for audio.
e681205 
Uses Tuner for frequency counter feature.
Adding latest_frequency to Tuner to support more real-time but less accurate frequency counting.
Converting Tuner sample_array and corr to std::vector from std::array.
Gadgetoid#14
kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 7, 2024
Relocating text on audioscope to bottom right.
3ee1393 
Enhancing for right justification and renaming TunerText to EffectText.
Only displaying frequency if it fits in 5 chars.
Gadgetoid#14
@kevinjwalters
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Got a basic version of this working, can be seen on https://www.youtube.com/watch?v=3cJKcyrB6zQ with some audio courtesy of @pudge

kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 7, 2024
findCross migrating from EffectAudioscopeTuner to Tuner class.
bcd13b9 
Gadgetoid#14
kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 9, 2024
Optimising autocorrelation using stepped lags.
04b72d0 
The lags can now be calculated with gaps to improve speed,
the missing values are calculated on demand.
Adding a step feature to Bitstream and Tuner to support this.
Step of 2 for Tuner and 4 for Audioscope.
Gadgetoid#14
kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 9, 2024
Primitive filtering for audioscope x scaling.
cf17cae 
Adding an inadequate window FIR filter for the x scaling on audioscope,
this also deals with falling off the end of the buffer.
Gadgetoid#14
kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 10, 2024
Adding phosphor decay effect to audio scope.
cedf5ca 
Last four traces are now stored in traces drawn at trace_intensity.
Gadgetoid#14
kevinjwalters pushed a commit to kevinjwalters/galactic-bluetooth-audio that referenced this issue Jan 11, 2024
Removing background from text on Audioscope.
f965130 
Gadgetoid#14
@kevinjwalters
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With latest refinements: https://www.youtube.com/watch?v=vYheu_LeiJY

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@kevinjwalters