Fixed the BPM to be more precise!

editor/EditorConfig.ts

@@ -23,7 +23,7 @@ import {DictionaryArray, BeepBoxOption, InstrumentType, toNameMap} from "../synt
 	}
 
 	export class EditorConfig {
-		public static readonly version: string = "3.0.11";
+		public static readonly version: string = "3.0.12";
 
 		public static readonly versionDisplayName: string = "BeepBox " + EditorConfig.version;
 		public static readonly presetCategories: DictionaryArray<PresetCategory> = toNameMap([

editor/ExportPrompt.ts

@@ -206,7 +206,7 @@ import {MidiChunkType, MidiFileFormat, MidiControlEventMessage, MidiEventType, M
 					synth.nextBar();
 				}
 			}
-			const sampleFrames: number = synth.getSamplesPerBar() * synth.getTotalBars(this._enableIntro.checked, this._enableOutro.checked);
+			const sampleFrames: number = Math.ceil(synth.getSamplesPerBar() * synth.getTotalBars(this._enableIntro.checked, this._enableOutro.checked));
 			const recordedSamplesL: Float32Array = new Float32Array(sampleFrames);
 			const recordedSamplesR: Float32Array = new Float32Array(sampleFrames);
 			//const timer: number = performance.now();

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "BeepBox",
-	"version": "3.0.11",
+	"version": "3.0.12",
 	"description": "BeepBox is an online tool for sketching and sharing instrumental melodies.",
 	"author": "John Nesky",
 	"license": "MIT",

synth/synth.ts

@@ -2462,7 +2462,7 @@ declare global {
 				this.tick = Math.floor(remainder);
 				const samplesPerTick: number = this.getSamplesPerTick();
 				remainder = samplesPerTick * (remainder - this.tick);
-				this.tickSampleCountdown = Math.floor(samplesPerTick - remainder);
+				this.tickSampleCountdown = samplesPerTick - remainder;
 			}
 		}
 
@@ -2634,9 +2634,8 @@ declare global {
 			let ended: boolean = false;
 
 			// Check the bounds of the playhead:
-			if (this.tickSampleCountdown == 0 || this.tickSampleCountdown > samplesPerTick) {
-				this.tickSampleCountdown = samplesPerTick;
-			}
+			while (this.tickSampleCountdown <= 0) this.tickSampleCountdown += samplesPerTick;
+			if (this.tickSampleCountdown > samplesPerTick) this.tickSampleCountdown = samplesPerTick;
 			if (playSong) {
 				if (this.beat >= this.song.beatsPerBar) {
 					this.bar++;
@@ -2710,9 +2709,7 @@ declare global {
 			while (bufferIndex < outputBufferLength && !ended) {
 
 				const samplesLeftInBuffer: number = outputBufferLength - bufferIndex;
-				const runLength: number = (this.tickSampleCountdown <= samplesLeftInBuffer)
-					? this.tickSampleCountdown
-					: samplesLeftInBuffer;
+				const runLength: number = Math.min(Math.ceil(this.tickSampleCountdown), samplesLeftInBuffer);
 				for (let channel: number = 0; channel < this.song.getChannelCount(); channel++) {
 
 					if (channel == this.liveInputChannel) {
@@ -2880,7 +2877,7 @@ declare global {
 					}
 
 					this.tick++;
-					this.tickSampleCountdown = samplesPerTick;
+					this.tickSampleCountdown += samplesPerTick;
 					if (this.tick == Config.ticksPerPart) {
 						this.tick = 0;
 						this.part++;
@@ -4328,9 +4325,9 @@ declare global {
 			if (this.song == null) return 0;
 			const beatsPerMinute: number = this.song.getBeatsPerMinute();
 			const beatsPerSecond: number = beatsPerMinute / 60.0;
-			const partsPerSecond: number = beatsPerSecond * Config.partsPerBeat;
-			const tickPerSecond: number = partsPerSecond * Config.ticksPerPart;
-			return Math.floor(this.samplesPerSecond / tickPerSecond);
+			const partsPerSecond: number = Config.partsPerBeat * beatsPerSecond;
+			const tickPerSecond: number = Config.ticksPerPart * partsPerSecond;
+			return this.samplesPerSecond / tickPerSecond;
 		}
 	}
 

tasks.txt

@@ -353,4 +353,6 @@
 √ Allow playing piano while song is paused, added preference to preview added notes while paused.
 √ Added preference to control whether to display song data in url.
 √ Added song recovery feature to file menu.
-√ Added .mp3 file export.
+√ Added .mp3 file export.
+√ Added tinyurl shortcut to file menu.
+√ BPM is now precise.