chore(bokeh): update quality score 92 and review feedback for spectrogram-mel

Author: github-actions[bot]

plots/spectrogram-mel/implementations/bokeh.py

@@ -1,6 +1,7 @@
-"""pyplots.ai
+""" pyplots.ai
 spectrogram-mel: Mel-Spectrogram for Audio Analysis
 Library: bokeh 3.9.0 | Python 3.14.3
+Quality: 92/100 | Created: 2026-03-11
 """
 
 import numpy as np

plots/spectrogram-mel/metadata/bokeh.yaml

@@ -1,7 +1,7 @@
 library: bokeh
 specification_id: spectrogram-mel
 created: '2026-03-11T19:42:55Z'
-updated: '2026-03-11T19:58:05Z'
+updated: '2026-03-11T20:09:08Z'
 generated_by: claude-opus-4-5-20251101
 workflow_run: 22970857215
 issue: 4672
@@ -10,113 +10,107 @@ library_version: 3.9.0
 preview_url: https://storage.googleapis.com/pyplots-images/plots/spectrogram-mel/bokeh/plot.png
 preview_thumb: https://storage.googleapis.com/pyplots-images/plots/spectrogram-mel/bokeh/plot_thumb.png
 preview_html: https://storage.googleapis.com/pyplots-images/plots/spectrogram-mel/bokeh/plot.html
-quality_score: 85
+quality_score: 92
 review:
   strengths:
-  - Excellent mel filterbank construction from scratch using scipy.signal STFT, avoiding
-    librosa dependency
-  - Quad rendering correctly positions mel bands on log y-axis, fixing the visual
-    distortion from attempt 1
-  - HoverTool provides genuinely interactive readout of time, frequency, and power
-    values
-  - Dark background matching Magma colormap floor creates cohesive visual design
-  - Rich audio synthesis with harmonics and ADSR envelopes produces a visually engaging
-    spectrogram
+  - Mel filterbank computed from scratch with proper triangular filters demonstrating
+    deep audio signal processing understanding
+  - Magma colormap on dark background is industry-standard for spectrograms and looks
+    professional
+  - Musical narrative (C Major Arpeggio to descending passage) with annotations creates
+    excellent data storytelling
+  - All font sizes explicitly scaled for 4800x2700 canvas with careful typography
+    hierarchy
+  - Vectorized quad construction is efficient and clean
+  - HoverTool adds genuine interactive value for the HTML export
   weaknesses:
-  - 'Design Excellence needs improvement: typography could be more refined, no visual
-    emphasis or annotation guiding viewer to key insight'
-  - Nested loop for building quad data arrays is verbose and could be vectorized with
-    np.repeat/np.tile
-  - Colorbar right margin slightly tight, could use more breathing room
-  image_description: The plot displays a mel-spectrogram rendered with the Magma colormap
-    on a dark background (#000004, matching the colormap's lowest value). The x-axis
-    shows "Time (seconds)" from 0 to 4, and the y-axis shows "Frequency (Hz)" on a
-    logarithmic scale with fixed ticks at 50, 100, 200, 500, 1000, 2000, 4000, and
-    8000 Hz. A colorbar on the right is labeled "Power (dB)" ranging from approximately
-    -70 to -20 dB. Bright horizontal bands (yellow-white through pink) are clearly
-    visible at various frequency levels corresponding to the synthesized melody notes
-    (C4, E4, G4, C5, A4, F4, D4) and their harmonics, with fundamentals showing the
-    brightest intensity and harmonics progressively dimmer. Note onsets and offsets
-    show clean ADSR envelope shaping. The mel bands are rendered as individual quads
-    correctly positioned on the log y-axis, eliminating the distortion seen in attempt
-    1. Background noise appears as low-level dark texture primarily in the lower frequencies.
-    The title reads "spectrogram-mel · bokeh · pyplots.ai" in bold at the top left.
-    Subtle dashed grid lines are visible at low opacity.
+  - LM-01 could reach 5/5 with use of Bokeh built-in image glyph (p.image) instead
+    of manually constructing quads
+  - DE-02 could benefit from removing the outline line entirely for a cleaner aesthetic
+  image_description: The plot displays a mel-spectrogram on a dark (#000004) background
+    using the Magma256 sequential colormap. The title "spectrogram-mel · bokeh · pyplots.ai"
+    appears at the top left in bold dark text. The x-axis is labeled "Time (seconds)"
+    spanning 0 to ~4 seconds, and the y-axis shows "Frequency (Hz)" on a logarithmic
+    scale with mel-spaced tick marks at 50, 100, 200, 500, 1000, 2000, 4000, and 8000
+    Hz. Bright yellow-white horizontal bands clearly depict individual musical notes
+    with visible harmonic overtones above each fundamental. A white dashed bounding
+    box in the left portion annotates "C Major Arpeggio (C4 → E4 → G4 → C5)" in italic
+    white text, while the right portion shows "Descending (A4 → F4 → D4)". Dotted
+    white horizontal reference lines mark the C4 (261 Hz) and C5 (523 Hz) frequencies
+    with bold labels at the right edge. A colorbar on the right displays "Power (dB)"
+    ranging from approximately −100 to −20 dB. The spectrogram clearly shows the ascending
+    arpeggio followed by a descending passage, with visible attack/release envelopes,
+    harmonic structure, and a subtle noise floor.
   criteria_checklist:
     visual_quality:
-      score: 28
+      score: 30
       max: 30
       items:
       - id: VQ-01
         name: Text Legibility
         score: 8
         max: 8
         passed: true
-        comment: 'All font sizes explicitly set: title=40pt, axis labels=32pt, tick
-          labels=24pt, colorbar title=32pt, colorbar labels=24pt. All text clearly
-          readable.'
+        comment: 'All font sizes explicitly set: 42pt title, 32pt axis labels, 24pt
+          tick labels, 22pt annotations'
       - id: VQ-02
         name: No Overlap
         score: 6
         max: 6
         passed: true
-        comment: No overlapping text elements anywhere in the plot.
+        comment: All text elements well-positioned, annotations in upper region away
+          from dense data
       - id: VQ-03
         name: Element Visibility
-        score: 5
+        score: 6
         max: 6
         passed: true
-        comment: Mel bands clearly visible with good contrast. Quad rendering correctly
-          positions bands on log scale. Lower frequency bins slightly coarse due to
-          narrow mel bandwidth.
+        comment: Mel band quads clearly visible with excellent contrast, harmonic
+          structure distinguishable
       - id: VQ-04
         name: Color Accessibility
         score: 4
         max: 4
         passed: true
-        comment: Magma is perceptually uniform and colorblind-safe with excellent
-          contrast.
+        comment: Magma256 is perceptually uniform and colorblind-safe
       - id: VQ-05
         name: Layout & Canvas
-        score: 3
+        score: 4
         max: 4
         passed: true
-        comment: Good canvas utilization with colorbar on right. Colorbar title text
-          slightly tight against right edge.
+        comment: Plot fills canvas well with explicitly set margins, colorbar properly
+          positioned
       - id: VQ-06
         name: Axis Labels & Title
         score: 2
         max: 2
         passed: true
-        comment: Time (seconds) and Frequency (Hz) descriptive with units. Colorbar
-          labeled Power (dB).
+        comment: Time (seconds) and Frequency (Hz) - descriptive with units
     design_excellence:
-      score: 12
+      score: 15
       max: 20
       items:
       - id: DE-01
         name: Aesthetic Sophistication
-        score: 5
+        score: 6
         max: 8
         passed: true
-        comment: Magma colormap is strong choice. Dark background matching colormap
-          floor is professional. Toolbar removed, bold title. Above default but not
-          publication-grade.
+        comment: 'Strong design: Magma on dark background, intentional typography
+          hierarchy, white annotation overlays'
       - id: DE-02
         name: Visual Refinement
         score: 4
         max: 6
         passed: true
-        comment: Subtle dashed grid (alpha=0.15), minor ticks hidden, custom outline,
-          dark background fill, generous padding. Clear refinement effort.
+        comment: Subtle grid (alpha=0.12, dashed), minor ticks removed, custom background/border
+          colors
       - id: DE-03
         name: Data Storytelling
-        score: 3
+        score: 5
         max: 6
         passed: true
-        comment: Synthesized melody creates visual narrative with note progressions
-          and harmonic structure. No explicit visual emphasis guiding viewer to key
-          insight.
+        comment: Dashed box highlights ascending arpeggio, separate label for descending
+          passage, C4/C5 frequency guides
     spec_compliance:
       score: 15
       max: 15
@@ -126,88 +120,85 @@ review:
         score: 5
         max: 5
         passed: true
-        comment: Correct mel-spectrogram visualization with mel-scaled frequency axis.
+        comment: Correct mel-spectrogram with proper mel filterbank computed from
+          scratch
       - id: SC-02
         name: Required Features
         score: 4
         max: 4
         passed: true
-        comment: 'All required features present: dB scale, sequential colormap, time/frequency
-          axes, colorbar in dB, correct parameters, synthesized audio.'
+        comment: 'All spec requirements met: dB scale, Magma colormap, time x-axis,
+          mel-scaled y-axis, colorbar in dB, correct parameters'
       - id: SC-03
         name: Data Mapping
         score: 3
         max: 3
         passed: true
-        comment: X=time Y=frequency correctly mapped. Quads properly positioned on
-          mel scale with log y-axis.
+        comment: X=time in seconds, Y=mel-frequency in Hz on log scale
       - id: SC-04
         name: Title & Legend
         score: 3
         max: 3
         passed: true
-        comment: Title format correct. No legend needed for this plot type.
+        comment: Title matches required format, colorbar serves as scale reference
     data_quality:
-      score: 14
+      score: 15
       max: 15
       items:
       - id: DQ-01
         name: Feature Coverage
-        score: 5
+        score: 6
         max: 6
         passed: true
-        comment: Rich audio with 7 notes, harmonics, ADSR envelopes, background noise.
-          Could show wider frequency variety.
+        comment: 'Rich audio: 7 notes with 4 harmonics each, attack/release envelopes,
+          background noise'
       - id: DQ-02
         name: Realistic Context
         score: 5
         max: 5
         passed: true
-        comment: Real musical notes with correct frequencies, standard sample rate
-          and duration.
+        comment: Musical melody context (C Major Arpeggio) is realistic and neutral
       - id: DQ-03
         name: Appropriate Scale
         score: 4
         max: 4
         passed: true
-        comment: 'All values sensible: 22050 Hz sample rate, musical frequencies in
-          hearing range, 128 mel bands.'
+        comment: Sample rate 22050 Hz, 4-second duration, musical frequencies - all
+          realistic
     code_quality:
-      score: 9
+      score: 10
       max: 10
       items:
       - id: CQ-01
         name: KISS Structure
         score: 3
         max: 3
         passed: true
-        comment: Clean imports-data-STFT-mel-plot-save structure, no functions or
-          classes.
+        comment: Clean imports-data-plot-save structure, no functions or classes
       - id: CQ-02
         name: Reproducibility
         score: 2
         max: 2
         passed: true
-        comment: np.random.seed(42) set at beginning.
+        comment: np.random.seed(42) set at start
       - id: CQ-03
         name: Clean Imports
         score: 2
         max: 2
         passed: true
-        comment: 'All imports used: numpy, bokeh models/palettes/plotting/io, scipy.signal.'
+        comment: 'All imports used: numpy, bokeh models, Magma256, scipy.signal'
       - id: CQ-04
         name: Code Elegance
-        score: 1
+        score: 2
         max: 2
-        passed: false
-        comment: Nested loop for quad data construction is verbose; could be vectorized
-          with np.repeat/np.tile.
+        passed: true
+        comment: Appropriate complexity, vectorized quad construction, no fake functionality
       - id: CQ-05
         name: Output & API
         score: 1
         max: 1
         passed: true
-        comment: Saves as plot.png and plot.html, current API usage.
+        comment: Saves as plot.png via export_png and plot.html via save
     library_mastery:
       score: 7
       max: 10
@@ -217,29 +208,28 @@ review:
         score: 4
         max: 5
         passed: true
-        comment: Good use of ColumnDataSource, quad renderer, ColorBar, LinearColorMapper,
-          FixedTicker, Magma256 from bokeh.palettes, export_png/output_file/save.
+        comment: Excellent use of ColumnDataSource, quad glyphs, layout system, ColorBar,
+          FixedTicker
       - id: LM-02
         name: Distinctive Features
         score: 3
         max: 5
         passed: true
-        comment: HoverTool with time/frequency/power readout is genuinely distinctive
-          Bokeh feature. HTML export alongside PNG. ColumnDataSource enables hover
-          interactivity.
-  verdict: REJECTED
+        comment: HoverTool with formatted tooltips, HTML export, BoxAnnotation - distinctively
+          Bokeh features
+  verdict: APPROVED
 impl_tags:
   dependencies:
   - scipy
   techniques:
   - colorbar
-  - manual-ticks
+  - annotations
   - hover-tooltips
+  - manual-ticks
   - html-export
   patterns:
   - data-generation
   - matrix-construction
-  - iteration-over-groups
   - columndatasource
   dataprep:
   - binning