diff options
Diffstat (limited to 'src/audio/tracker.cc')
| -rw-r--r-- | src/audio/tracker.cc | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/src/audio/tracker.cc b/src/audio/tracker.cc index 00c31e9..38c814d 100644 --- a/src/audio/tracker.cc +++ b/src/audio/tracker.cc @@ -193,7 +193,8 @@ static int get_free_pattern_slot() { // sample-accurate timing) // volume_mult: Additional volume multiplier (for humanization) static void trigger_note_event(const TrackerEvent& event, - int start_offset_samples, float volume_mult = 1.0f) { + int start_offset_samples, + float volume_mult = 1.0f) { #if defined(DEBUG_LOG_TRACKER) // VALIDATION: Check sample_id bounds if (event.sample_id >= g_tracker_samples_count) { @@ -234,10 +235,10 @@ static void trigger_note_event(const TrackerEvent& event, } void tracker_update(float music_time_sec, float dt_music_sec) { - // TODO(timing): CRITICAL BUG - Events trigger ~180ms early over 63 beats @ BPM=90 - // Observed: Beat 63 snare at 41.82s in WAV, should be at 42.00s (180ms drift) - // NOTE: This is NOT a float vs double precision issue - floats handle <500s times fine - // Root cause unknown - suspects: + // TODO(timing): CRITICAL BUG - Events trigger ~180ms early over 63 beats @ + // BPM=90 Observed: Beat 63 snare at 41.82s in WAV, should be at 42.00s (180ms + // drift) NOTE: This is NOT a float vs double precision issue - floats handle + // <500s times fine Root cause unknown - suspects: // 1. Systematic bias in time calculation (not random accumulation) // 2. Truncation in audio.cc:103 chunk_frames = (int)(dt * sample_rate) // 3. BPM calculation precision below (unit_duration_sec) @@ -324,14 +325,6 @@ void tracker_update(float music_time_sec, float dt_music_sec) { } } - // DEBUG: Track kick/snare timing for drift investigation - if (event.sample_id == 0 || event.sample_id == 1) { // Assuming kick=0, snare=1 - const char* name = (event.sample_id == 0) ? "KICK " : "SNARE"; - const float delta_ms = (event_music_time - music_time_sec) * 1000.0f; - printf("[DRIFT] %s: music=%.4f expect=%.4f delta=%.2fms offset=%d\n", - name, music_time_sec, event_music_time, delta_ms, sample_offset); - } - trigger_note_event(event, sample_offset, volume_mult); active.next_event_idx++; } |