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feat: added an option to let user choose the vertical resolution of the spectrogram, also fixed a bug that peak of pitch in the spectrogram has been mapped to the start of the note bin instead of the center

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This commit is contained in:
Xiaohan-Tian
2026-05-04 20:14:04 -07:00
parent d089456676
commit 8a6e904ab4
12 changed files with 302 additions and 41 deletions
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src/core/audio-interface/KGOfflineRenderer.ts
+14 -4
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@@ -3,6 +3,7 @@ import type { KGProject } from '../KGProject';
import type { KGMidiNote } from '../midi/KGMidiNote';
import type { KGAudioRegion } from '../region/KGAudioRegion';
import { FLUIDR3_INSTRUMENT_MAP } from '../../constants/generalMidiConstants';
import { AUDIO_INTERFACE_CONSTANTS } from '../../constants/coreConstants';
import { pitchToNoteNameString } from '../../util/midiUtil';
import { KGToneBuffersPool } from './KGToneBuffersPool';
import { KGToneSamplerFactory } from './KGToneSamplerFactory';
@@ -254,9 +255,8 @@ export class KGOfflineRenderer {
});
});
// Apply volume
const volumeDb = trackInfo.volume > 0 ? 20 * Math.log10(trackInfo.volume) : -Infinity;
sampler.volume.value = volumeDb;
// Track volumes are stored in dB across the app, with 0 meaning unity gain.
sampler.volume.value = getOfflineTrackVolumeDb(trackInfo.volume, trackInfo.muted);
sampler.connect(masterGain);
// Schedule all notes for this track
@@ -288,7 +288,7 @@ export class KGOfflineRenderer {
for (const trackInfo of audioTrackData) {
if (!shouldPlay(trackInfo, hasSoloedTracks)) continue;
const trackGain = new Tone.Gain(trackInfo.volume);
const trackGain = new Tone.Gain(getOfflineTrackGain(trackInfo.volume, trackInfo.muted));
trackGain.connect(masterGain);
for (const regionInfo of trackInfo.regions) {
@@ -418,6 +418,16 @@ function shouldPlay(trackInfo: { muted: boolean; solo: boolean }, hasSoloedTrack
return true;
}
export function getOfflineTrackVolumeDb(volumeDb: number, muted: boolean): number {
const isSilent = muted || volumeDb <= AUDIO_INTERFACE_CONSTANTS.MIN_TRACK_VOLUME_DB;
return isSilent ? -Infinity : volumeDb;
}
export function getOfflineTrackGain(volumeDb: number, muted: boolean): number {
const effectiveVolumeDb = getOfflineTrackVolumeDb(volumeDb, muted);
return Number.isFinite(effectiveVolumeDb) ? Math.pow(10, effectiveVolumeDb / 20) : 0;
}
// ===== WAV ENCODER =====
/**