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-rw-r--r--src/audio/audio.cc6
-rw-r--r--src/audio/audio.h6
-rw-r--r--src/audio/ring_buffer.cc5
-rw-r--r--src/audio/ring_buffer.h12
-rw-r--r--src/audio/tracker.cc10
-rw-r--r--src/generated/music_data.cc346
6 files changed, 133 insertions, 252 deletions
diff --git a/src/audio/audio.cc b/src/audio/audio.cc
index 67345cf..74536e5 100644
--- a/src/audio/audio.cc
+++ b/src/audio/audio.cc
@@ -172,6 +172,12 @@ float audio_get_playback_time() {
(RING_BUFFER_SAMPLE_RATE * RING_BUFFER_CHANNELS);
}
+float audio_get_render_time() {
+ const int64_t total_samples = g_ring_buffer.get_total_written();
+ return (float)total_samples /
+ (RING_BUFFER_SAMPLE_RATE * RING_BUFFER_CHANNELS);
+}
+
float audio_get_realtime_peak() {
if (g_audio_backend == nullptr) {
return 0.0f;
diff --git a/src/audio/audio.h b/src/audio/audio.h
index 14fe615..e063a57 100644
--- a/src/audio/audio.h
+++ b/src/audio/audio.h
@@ -27,8 +27,14 @@ void audio_start(); // Starts the audio device callback
void audio_render_ahead(float music_time, float dt);
// Get current playback time (in seconds) based on samples consumed
+// This is the ring buffer READ position (what's being played NOW)
float audio_get_playback_time();
+// Get current render time (in seconds) based on samples written
+// This is the ring buffer WRITE position (where we're currently rendering)
+// Use this for calculating sample-accurate trigger offsets
+float audio_get_render_time();
+
// Get peak amplitude of samples currently being played (real-time sync)
// Returns: Peak amplitude in range [0.0, 1.0+]
// Use this for visual effects to ensure audio-visual synchronization
diff --git a/src/audio/ring_buffer.cc b/src/audio/ring_buffer.cc
index a7e5d9e..7cedb56 100644
--- a/src/audio/ring_buffer.cc
+++ b/src/audio/ring_buffer.cc
@@ -9,7 +9,7 @@
AudioRingBuffer::AudioRingBuffer()
: capacity_(RING_BUFFER_CAPACITY_SAMPLES), write_pos_(0), read_pos_(0),
- total_read_(0) {
+ total_read_(0), total_written_(0) {
memset(buffer_, 0, sizeof(buffer_));
}
@@ -81,6 +81,9 @@ int AudioRingBuffer::write(const float* samples, int count) {
write_pos_.store(remainder, std::memory_order_release);
}
+ // Track total samples written for render timing
+ total_written_.fetch_add(to_write, std::memory_order_release);
+
return to_write;
}
diff --git a/src/audio/ring_buffer.h b/src/audio/ring_buffer.h
index b19c1ea..324447a 100644
--- a/src/audio/ring_buffer.h
+++ b/src/audio/ring_buffer.h
@@ -42,6 +42,11 @@ class AudioRingBuffer {
return total_read_.load(std::memory_order_acquire);
}
+ // Get total samples written (for render timing)
+ int64_t get_total_written() const {
+ return total_written_.load(std::memory_order_acquire);
+ }
+
// Clear buffer (for seeking)
void clear();
@@ -49,7 +54,8 @@ class AudioRingBuffer {
float buffer_[RING_BUFFER_CAPACITY_SAMPLES];
int capacity_; // Total capacity in samples
- std::atomic<int> write_pos_; // Write position (0 to capacity-1)
- std::atomic<int> read_pos_; // Read position (0 to capacity-1)
- std::atomic<int64_t> total_read_; // Total samples read (for playback time)
+ std::atomic<int> write_pos_; // Write position (0 to capacity-1)
+ std::atomic<int> read_pos_; // Read position (0 to capacity-1)
+ std::atomic<int64_t> total_read_; // Total samples read (for playback time)
+ std::atomic<int64_t> total_written_; // Total samples written (for render timing)
};
diff --git a/src/audio/tracker.cc b/src/audio/tracker.cc
index 93a1c49..1cccc57 100644
--- a/src/audio/tracker.cc
+++ b/src/audio/tracker.cc
@@ -239,8 +239,9 @@ void tracker_update(float music_time_sec) {
}
// Step 2: Update all active patterns and trigger individual events
- // Get current audio playback position for sample-accurate timing
- const float current_playback_time = audio_get_playback_time();
+ // Get current audio RENDER position (write position) for sample-accurate timing
+ // This is where we're currently writing to the ring buffer (~400ms ahead of playback)
+ const float current_render_time = audio_get_render_time();
const float SAMPLE_RATE = 32000.0f; // Audio sample rate
for (int i = 0; i < MAX_SPECTROGRAMS; ++i) {
@@ -265,8 +266,9 @@ void tracker_update(float music_time_sec) {
const float event_trigger_time = active.start_music_time +
(event.unit_time * unit_duration_sec);
- // Calculate sample-accurate offset from current playback position
- const float time_delta = event_trigger_time - current_playback_time;
+ // Calculate sample-accurate offset from current RENDER position (write pos)
+ // This is where we're currently writing to the buffer, not where playback is
+ const float time_delta = event_trigger_time - current_render_time;
int sample_offset = (int)(time_delta * SAMPLE_RATE);
// Clamp to 0 if negative (event is late, play immediately)
diff --git a/src/generated/music_data.cc b/src/generated/music_data.cc
index 7db925a..8d6f482 100644
--- a/src/generated/music_data.cc
+++ b/src/generated/music_data.cc
@@ -7,304 +7,162 @@
const NoteParams g_tracker_samples[] = {
{ 0 }, // ASSET_KICK_1 (ASSET)
{ 0 }, // ASSET_KICK_2 (ASSET)
- { 0 }, // ASSET_KICK_2 (ASSET)
{ 0 }, // ASSET_SNARE_1 (ASSET)
{ 0 }, // ASSET_SNARE_2 (ASSET)
{ 0 }, // ASSET_SNARE_3 (ASSET)
- { 0 }, // ASSET_SNARE_3 (ASSET)
- { 0 }, // ASSET_HIHAT_1 (ASSET)
- { 0 }, // ASSET_HIHAT_2 (ASSET)
- { 0 }, // ASSET_HIHAT_3 (ASSET)
- { 0 }, // ASSET_HIHAT_3 (ASSET)
- { 0 }, // ASSET_CRASH_1 (ASSET)
{ 0 }, // ASSET_RIDE_1 (ASSET)
- { 0 }, // ASSET_SPLASH_1 (ASSET)
- { 0 }, // ASSET_BASS_1 (ASSET)
- { 164.8f, 0.50f, 1.0f, 0.01f, 0.0f, 0.0f, 0.0f, 3, 0.6f, 0.0f, 0.0f }, // NOTE_E3
- { 196.0f, 0.50f, 1.0f, 0.01f, 0.0f, 0.0f, 0.0f, 3, 0.6f, 0.0f, 0.0f }, // NOTE_G3
- { 146.8f, 0.50f, 1.0f, 0.01f, 0.0f, 0.0f, 0.0f, 3, 0.6f, 0.0f, 0.0f }, // NOTE_D3
- { 65.4f, 0.50f, 1.0f, 0.01f, 0.0f, 0.0f, 0.0f, 3, 0.6f, 0.0f, 0.0f }, // NOTE_C2
- { 73.4f, 0.50f, 1.0f, 0.01f, 0.0f, 0.0f, 0.0f, 3, 0.6f, 0.0f, 0.0f }, // NOTE_D2
};
-const uint32_t g_tracker_samples_count = 20;
+const uint32_t g_tracker_samples_count = 6;
const AssetId g_tracker_sample_assets[] = {
AssetId::ASSET_KICK_1,
AssetId::ASSET_KICK_2,
- AssetId::ASSET_KICK_2,
AssetId::ASSET_SNARE_1,
AssetId::ASSET_SNARE_2,
AssetId::ASSET_SNARE_3,
- AssetId::ASSET_SNARE_3,
- AssetId::ASSET_HIHAT_1,
- AssetId::ASSET_HIHAT_2,
- AssetId::ASSET_HIHAT_3,
- AssetId::ASSET_HIHAT_3,
- AssetId::ASSET_CRASH_1,
AssetId::ASSET_RIDE_1,
- AssetId::ASSET_SPLASH_1,
- AssetId::ASSET_BASS_1,
- AssetId::ASSET_LAST_ID,
- AssetId::ASSET_LAST_ID,
- AssetId::ASSET_LAST_ID,
- AssetId::ASSET_LAST_ID,
- AssetId::ASSET_LAST_ID,
};
-static const TrackerEvent PATTERN_EVENTS_kick_basic[] = {
- { 0.00f, 0, 1.0f, 0.0f },
- { 0.50f, 0, 1.0f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_kick_varied[] = {
- { 0.00f, 2, 1.0f, 0.0f },
- { 0.50f, 0, 0.9f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_kick_dense[] = {
+static const TrackerEvent PATTERN_EVENTS_kick_1[] = {
{ 0.00f, 0, 1.0f, 0.0f },
- { 0.12f, 2, 0.6f, -0.2f },
- { 0.25f, 0, 0.9f, 0.0f },
- { 0.38f, 2, 0.6f, 0.2f },
{ 0.50f, 0, 1.0f, 0.0f },
- { 0.62f, 2, 0.6f, -0.2f },
- { 0.75f, 0, 0.9f, 0.0f },
- { 0.88f, 2, 0.6f, 0.2f },
-};
-static const TrackerEvent PATTERN_EVENTS_snare_basic[] = {
- { 0.25f, 3, 1.1f, 0.1f },
- { 0.75f, 3, 1.1f, 0.1f },
-};
-static const TrackerEvent PATTERN_EVENTS_snare_varied[] = {
- { 0.25f, 4, 1.0f, -0.1f },
- { 0.75f, 0, 1.1f, 0.1f },
};
-static const TrackerEvent PATTERN_EVENTS_snare_dense[] = {
- { 0.25f, 3, 1.1f, 0.1f },
- { 0.62f, 6, 0.9f, 0.0f },
- { 0.88f, 0, 0.9f, 0.0f },
+static const TrackerEvent PATTERN_EVENTS_kick_2[] = {
+ { 0.00f, 1, 1.0f, 0.0f },
+ { 0.50f, 1, 1.0f, 0.0f },
};
-static const TrackerEvent PATTERN_EVENTS_hihat_basic[] = {
- { 0.00f, 8, 0.7f, -0.3f },
- { 0.12f, 7, 0.3f, 0.3f },
- { 0.25f, 8, 0.7f, -0.3f },
- { 0.38f, 7, 0.3f, 0.3f },
- { 0.50f, 8, 0.7f, -0.3f },
- { 0.62f, 7, 0.3f, 0.3f },
- { 0.75f, 8, 0.7f, -0.3f },
- { 0.88f, 7, 0.3f, 0.3f },
+static const TrackerEvent PATTERN_EVENTS_snare_1[] = {
+ { 0.25f, 2, 1.0f, 0.0f },
+ { 0.75f, 2, 1.0f, 0.0f },
};
-static const TrackerEvent PATTERN_EVENTS_hihat_varied[] = {
- { 0.00f, 10, 0.7f, -0.3f },
- { 0.12f, 7, 0.3f, 0.3f },
- { 0.25f, 0, 0.6f, -0.2f },
- { 0.38f, 7, 0.3f, 0.3f },
- { 0.50f, 10, 0.7f, -0.3f },
- { 0.62f, 7, 0.3f, 0.3f },
- { 0.75f, 0, 0.6f, -0.2f },
- { 0.88f, 7, 0.3f, 0.3f },
+static const TrackerEvent PATTERN_EVENTS_snare_2[] = {
+ { 0.25f, 3, 1.0f, 0.0f },
+ { 0.75f, 3, 1.0f, 0.0f },
};
-static const TrackerEvent PATTERN_EVENTS_crash[] = {
- { 0.00f, 11, 0.9f, 0.0f },
+static const TrackerEvent PATTERN_EVENTS_snare_3[] = {
+ { 0.25f, 4, 1.0f, 0.0f },
+ { 0.75f, 4, 1.0f, 0.0f },
};
static const TrackerEvent PATTERN_EVENTS_ride[] = {
- { 0.00f, 12, 0.8f, 0.2f },
-};
-static const TrackerEvent PATTERN_EVENTS_ride_fast[] = {
- { 0.00f, 12, 0.8f, 0.2f },
- { 0.12f, 12, 0.6f, 0.2f },
- { 0.25f, 12, 0.8f, 0.2f },
- { 0.38f, 12, 0.6f, 0.2f },
- { 0.50f, 12, 0.8f, 0.2f },
- { 0.62f, 12, 0.6f, 0.2f },
- { 0.75f, 12, 0.8f, 0.2f },
- { 0.88f, 12, 0.6f, 0.2f },
-};
-static const TrackerEvent PATTERN_EVENTS_splash[] = {
- { 0.00f, 13, 0.7f, -0.2f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_e_soft[] = {
- { 0.00f, 15, 0.4f, 0.0f },
- { 0.50f, 15, 0.3f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_e[] = {
- { 0.00f, 15, 0.5f, 0.0f },
- { 0.25f, 15, 0.4f, 0.0f },
- { 0.50f, 15, 0.5f, 0.0f },
- { 0.62f, 15, 0.3f, 0.0f },
- { 0.75f, 15, 0.4f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_eg[] = {
- { 0.00f, 15, 0.5f, 0.0f },
- { 0.25f, 15, 0.4f, 0.0f },
- { 0.50f, 16, 0.5f, 0.0f },
- { 0.75f, 16, 0.4f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_progression[] = {
- { 0.00f, 15, 0.5f, 0.0f },
- { 0.25f, 17, 0.4f, 0.0f },
- { 0.50f, 18, 0.5f, 0.0f },
- { 0.75f, 16, 0.4f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_synco_1[] = {
- { 0.00f, 15, 0.6f, 0.0f },
- { 0.06f, 15, 0.5f, 0.1f },
- { 0.19f, 15, 0.6f, -0.1f },
- { 0.38f, 15, 0.5f, 0.0f },
- { 0.50f, 15, 0.6f, 0.0f },
- { 0.69f, 16, 0.6f, 0.1f },
- { 0.81f, 15, 0.5f, 0.0f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_synco_2[] = {
- { 0.00f, 15, 0.6f, 0.0f },
- { 0.12f, 17, 0.6f, -0.1f },
- { 0.31f, 15, 0.5f, 0.1f },
- { 0.44f, 17, 0.5f, 0.0f },
- { 0.50f, 18, 0.6f, 0.0f },
- { 0.62f, 15, 0.5f, 0.1f },
- { 0.75f, 16, 0.6f, 0.0f },
- { 0.88f, 15, 0.5f, -0.1f },
-};
-static const TrackerEvent PATTERN_EVENTS_bass_synco_3[] = {
- { 0.00f, 15, 0.6f, 0.0f },
- { 0.06f, 15, 0.5f, 0.0f },
- { 0.12f, 15, 0.6f, 0.1f },
- { 0.25f, 16, 0.6f, 0.0f },
- { 0.38f, 15, 0.5f, -0.1f },
- { 0.56f, 19, 0.6f, 0.0f },
- { 0.69f, 15, 0.5f, 0.1f },
- { 0.88f, 15, 0.6f, 0.0f },
+ { 0.00f, 5, 0.7f, 0.2f },
+ { 0.25f, 5, 0.6f, 0.2f },
+ { 0.50f, 5, 0.7f, 0.2f },
+ { 0.75f, 5, 0.6f, 0.2f },
};
const TrackerPattern g_tracker_patterns[] = {
- { PATTERN_EVENTS_kick_basic, 2, 1.00f }, // kick_basic
- { PATTERN_EVENTS_kick_varied, 2, 1.00f }, // kick_varied
- { PATTERN_EVENTS_kick_dense, 8, 1.00f }, // kick_dense
- { PATTERN_EVENTS_snare_basic, 2, 1.00f }, // snare_basic
- { PATTERN_EVENTS_snare_varied, 2, 1.00f }, // snare_varied
- { PATTERN_EVENTS_snare_dense, 3, 1.00f }, // snare_dense
- { PATTERN_EVENTS_hihat_basic, 8, 1.00f }, // hihat_basic
- { PATTERN_EVENTS_hihat_varied, 8, 1.00f }, // hihat_varied
- { PATTERN_EVENTS_crash, 1, 1.00f }, // crash
- { PATTERN_EVENTS_ride, 1, 1.00f }, // ride
- { PATTERN_EVENTS_ride_fast, 8, 1.00f }, // ride_fast
- { PATTERN_EVENTS_splash, 1, 1.00f }, // splash
- { PATTERN_EVENTS_bass_e_soft, 2, 1.00f }, // bass_e_soft
- { PATTERN_EVENTS_bass_e, 5, 1.00f }, // bass_e
- { PATTERN_EVENTS_bass_eg, 4, 1.00f }, // bass_eg
- { PATTERN_EVENTS_bass_progression, 4, 1.00f }, // bass_progression
- { PATTERN_EVENTS_bass_synco_1, 7, 1.00f }, // bass_synco_1
- { PATTERN_EVENTS_bass_synco_2, 8, 1.00f }, // bass_synco_2
- { PATTERN_EVENTS_bass_synco_3, 8, 1.00f }, // bass_synco_3
+ { PATTERN_EVENTS_kick_1, 2, 1.00f }, // kick_1
+ { PATTERN_EVENTS_kick_2, 2, 1.00f }, // kick_2
+ { PATTERN_EVENTS_snare_1, 2, 1.00f }, // snare_1
+ { PATTERN_EVENTS_snare_2, 2, 1.00f }, // snare_2
+ { PATTERN_EVENTS_snare_3, 2, 1.00f }, // snare_3
+ { PATTERN_EVENTS_ride, 4, 1.00f }, // ride
};
-const uint32_t g_tracker_patterns_count = 19;
+const uint32_t g_tracker_patterns_count = 6;
static const TrackerPatternTrigger SCORE_TRIGGERS[] = {
- { 0.0f, 8 },
{ 0.0f, 0 },
- { 0.0f, 6 },
+ { 0.0f, 2 },
{ 0.5f, 0 },
- { 0.5f, 3 },
- { 0.5f, 6 },
- { 1.0f, 9 },
- { 1.0f, 1 },
- { 1.0f, 3 },
- { 1.0f, 7 },
- { 1.5f, 1 },
- { 1.5f, 4 },
- { 1.5f, 7 },
- { 2.0f, 11 },
+ { 0.5f, 2 },
+ { 1.0f, 0 },
+ { 1.0f, 2 },
+ { 1.5f, 0 },
+ { 1.5f, 2 },
{ 2.0f, 0 },
{ 2.0f, 3 },
- { 2.0f, 6 },
- { 2.0f, 12 },
- { 2.5f, 1 },
- { 2.5f, 4 },
- { 2.5f, 7 },
- { 2.5f, 12 },
- { 3.0f, 9 },
+ { 2.5f, 0 },
+ { 2.5f, 3 },
{ 3.0f, 0 },
{ 3.0f, 3 },
- { 3.0f, 6 },
- { 3.0f, 13 },
- { 3.5f, 1 },
- { 3.5f, 4 },
- { 3.5f, 7 },
- { 3.5f, 14 },
- { 4.0f, 8 },
- { 4.0f, 2 },
- { 4.0f, 5 },
- { 4.0f, 7 },
- { 4.0f, 13 },
- { 4.5f, 2 },
- { 4.5f, 5 },
- { 4.5f, 6 },
- { 4.5f, 15 },
- { 5.0f, 9 },
- { 5.0f, 2 },
- { 5.0f, 5 },
- { 5.0f, 7 },
- { 5.0f, 13 },
- { 5.5f, 2 },
- { 5.5f, 5 },
- { 5.5f, 6 },
- { 5.5f, 14 },
- { 6.0f, 11 },
+ { 3.5f, 0 },
+ { 3.5f, 3 },
+ { 4.0f, 1 },
+ { 4.0f, 4 },
+ { 4.5f, 1 },
+ { 4.5f, 4 },
+ { 5.0f, 1 },
+ { 5.0f, 4 },
+ { 5.5f, 1 },
+ { 5.5f, 4 },
+ { 6.0f, 1 },
{ 6.0f, 2 },
- { 6.0f, 5 },
- { 6.0f, 7 },
- { 6.0f, 15 },
+ { 6.5f, 1 },
{ 6.5f, 2 },
- { 6.5f, 5 },
- { 6.5f, 6 },
- { 6.5f, 13 },
- { 7.0f, 10 },
- { 7.0f, 0 },
- { 7.0f, 4 },
- { 7.0f, 7 },
- { 7.0f, 14 },
+ { 7.0f, 1 },
+ { 7.0f, 2 },
{ 7.5f, 1 },
- { 7.5f, 3 },
- { 7.5f, 6 },
- { 7.5f, 15 },
- { 7.8f, 6 },
- { 8.0f, 8 },
- { 8.0f, 10 },
- { 8.0f, 2 },
+ { 7.5f, 2 },
+ { 8.0f, 0 },
+ { 8.0f, 3 },
{ 8.0f, 5 },
- { 8.0f, 7 },
- { 8.0f, 16 },
- { 8.5f, 10 },
- { 8.5f, 2 },
+ { 8.5f, 0 },
+ { 8.5f, 3 },
{ 8.5f, 5 },
- { 8.5f, 6 },
- { 8.5f, 17 },
- { 9.0f, 10 },
- { 9.0f, 2 },
+ { 9.0f, 0 },
+ { 9.0f, 3 },
{ 9.0f, 5 },
- { 9.0f, 7 },
- { 9.0f, 18 },
- { 9.5f, 8 },
+ { 9.5f, 0 },
+ { 9.5f, 3 },
+ { 9.5f, 5 },
+ { 10.0f, 1 },
+ { 10.0f, 4 },
+ { 10.0f, 5 },
+ { 10.5f, 1 },
+ { 10.5f, 4 },
+ { 10.5f, 5 },
+ { 11.0f, 1 },
+ { 11.0f, 4 },
+ { 11.0f, 5 },
+ { 11.5f, 1 },
+ { 11.5f, 4 },
+ { 11.5f, 5 },
+ { 12.0f, 0 },
+ { 12.0f, 2 },
+ { 12.0f, 5 },
+ { 12.5f, 0 },
+ { 12.5f, 2 },
+ { 12.5f, 5 },
+ { 13.0f, 0 },
+ { 13.0f, 2 },
+ { 13.0f, 5 },
+ { 13.5f, 0 },
+ { 13.5f, 2 },
+ { 13.5f, 5 },
+ { 14.0f, 1 },
+ { 14.0f, 3 },
+ { 14.0f, 5 },
+ { 14.5f, 1 },
+ { 14.5f, 3 },
+ { 14.5f, 5 },
+ { 15.0f, 1 },
+ { 15.0f, 3 },
+ { 15.0f, 5 },
+ { 15.5f, 1 },
+ { 15.5f, 3 },
+ { 15.5f, 5 },
};
const TrackerScore g_tracker_score = {
- SCORE_TRIGGERS, 85, 120.0f
+ SCORE_TRIGGERS, 80, 120.0f
};
// ============================================================
// RESOURCE USAGE ANALYSIS (for synth.h configuration)
// ============================================================
-// Total samples: 20 (15 assets + 5 generated notes)
-// Max simultaneous pattern triggers: 6
-// Estimated max polyphony: 24 voices
+// Total samples: 6 (6 assets + 0 generated notes)
+// Max simultaneous pattern triggers: 3
+// Estimated max polyphony: 6 voices
//
// REQUIRED (minimum to avoid pool exhaustion):
-// MAX_VOICES: 24
-// MAX_SPECTROGRAMS: 135 (no caching)
+// MAX_VOICES: 6
+// MAX_SPECTROGRAMS: 6 (no caching)
//
// RECOMMENDED (with 50% safety margin):
-// MAX_VOICES: 48
-// MAX_SPECTROGRAMS: 202 (no caching)
+// MAX_VOICES: 12
+// MAX_SPECTROGRAMS: 9 (no caching)
//
// NOTE: With spectrogram caching by note parameters,
-// MAX_SPECTROGRAMS could be reduced to ~20
+// MAX_SPECTROGRAMS could be reduced to ~6
// ============================================================