Uses 1456K of libraries. Click here for Pure Java version (11937L/65K).
!7 cm LiveFFT > DynImageSurface { volatile bool enabled = true; switchable bool normalize = false; switchable double windowSize = 1; // seconds switchable int overlap = 2; switchable int frameBits = 10; // frameSize 1024 switchable double preMult = 3.5; switchable int brightness = -300; switchable int contrast = 187; switchable int downSampling = 1; transient Q q; transient L<short[]> buffer = synchroList(); transient volatile int bufferSize; transient int neededSamples; transient Clip clip; transient short[] fromData; transient IF1<Double> colorizer = x -> (brightness+contrast*log1p(abs(preMult*x)))/255; visualize { if (!hasImage()) setImage( whiteImage(audio_estimatedFrequencyImageWidth(windowSize), audio_frequencyImageHeight())); ret centerAndSouthWithMargins(super.visualizeWithDoubleBuffering(), jvstackWithSpacing( makeForm( "Window Size" := dm_doubleSlider windowSize(0, 2), "Frame Bits" := dm_intSlider frameBits(1, 12), Downsampling := dm_intSlider downSampling(1, 8), Overlap := dm_intSlider overlap(1, 16), PreMult := dm_doubleSlider preMult(0, 50), Brightness := dm_intSlider brightness(-300, 200), Contrast := dm_intSlider contrast(0, 300)), jrightalignedline(dm_fieldCheckBox enabled()) )); } void onNewWindowSize { neededSamples = iround(windowSize*44100); buffer.clear(); bufferSize = 0; } start { dm_watchFieldAndNow windowSize(r onNewWindowSize); q = dm_startQ(); dm_addAudioListener(voidfunc(short[] _data) { if (!enabled) ret; short[] data = _data; data = dm_audioInputIsStereo() ? mixStereoShortArrayToMono(data) : cloneShortArray(data); if (normalize) data = normalizeShortArray(data); buffer.add(data); bufferSize += l(data); if (bufferSize >= neededSamples) { bufferSize -= neededSamples; final L<short[]> salvaged = cloneList(buffer); buffer.clear(); if (bufferSize > 0) { buffer.add(lastNShorts(bufferSize, last(salvaged))); replaceLastElement(salvaged, dropLastNShorts(bufferSize, last(salvaged))); } q.add(r { short[] data = concatShortArrays(salvaged); data = linearlyShortenArray(data, iround(l(data)/downSampling)); ShortArrayInputStream stream = new(data); stream.bigEndian = true; clip = spectro_clipFromMonoInputStream(stream, 1 << frameBits, overlap); vmBus_send newAudioFrequencyClip(clip); BWImage img = clipToFrequencyImage(clip, colorizer); vmBus_send newAudioFrequencyImage(img); vmBus_send newAudioFrequencyImageFromData(img, _data); setImage(img); fromData = _data; }); } }); } }
Began life as a copy of #1019274
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Snippet ID: | #1031900 |
Snippet name: | Live Audio FFT with more options |
Eternal ID of this version: | #1031900/7 |
Text MD5: | 08846e0c3cce09ec4e13d1cd34c61ea6 |
Transpilation MD5: | bf8430f65d35daec0842356dcd86ce4e |
Author: | stefan |
Category: | javax / audio recognition |
Type: | JavaX source code (Dynamic Module) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2021-07-24 07:01:23 |
Source code size: | 2984 bytes / 86 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 96 / 660 |
Version history: | 6 change(s) |
Referenced in: | [show references] |