From 13029f42779665cbfc3cd5d18bb7af8e8b6c252a Mon Sep 17 00:00:00 2001
From: AG <odulov@gmail.com>
Date: Sat, 20 Dec 2025 20:48:15 +0200
Subject: [PATCH] Bass line Note Trigger Sound fixed

---
 session_state.db            | Bin 24576 -> 24576 bytes
 src/audio/Engine.ts         |   1 +
 src/hooks/useDrumMachine.ts |  11 ++++++++---
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/session_state.db b/session_state.db
index 90ad56b238e3acbc32f38c544fb0c10ec1cd432b..313cf09380b60588cc87f4e1efee7efdad181bde 100644
GIT binary patch
delta 732
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z1NIXle?b0&+P0~8@14;pc-;5iz31F>?rrv^W?#As*`;D<E+b-Z?`b~dVI>>8Vr}-t
zURjkrupS$-H&$aMJsMG&k2zw}`Ejzga(Z~8oK-z~b>T7Mb~uMN?_l!6IqV(1J7-!!
zk1N)xs}>-?DMxr~I>6hSn}2Mt@opi&UqU|qvkC75{#=;i;n^_%^nY_-aJ?aCW2zjN
zGZ4}c^7s<T-T022`&Z0S8ZjFH)DVC~YJq>C0X<Juj98|A$P}%FSOa24v4~|c1L3co
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zKl&M-O{b)-87Od-RS9cdm$^Jblh}CgLV({_7QKmNYAJEO<#t7H>-uH6Yu_K)1`neq
qpdvhC&MHh^AuVQt3+ZC{;!TG}Glznk7yYXf%PCb!DXKoG#2vo@JgS@k

delta 484
zcmZoTz}Rqrae@>R!<C6LPC#;F!V-B2F8)LY{yP4C{*U|z`4jo)^KayT$bXT)V6&ov
z0sq7X(ankaixoJSILa7!u5grXEX?9y?}+ANRh&@2xhZlTQ@xwAk&=#*JBV-r5pKpx
zu{zO8?qFd@kccCg36WGb1}O#;V5TEPwG&94GhEIMEC)16N68gLxPS;}u%HW&1ep(3
z?5u2550n8b1nGfGfX##03w8q70HC!X1z-WF^FZdpG=jy!8et+}JAhh2y1;fo9c}~`
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h70BM$SRJL5qSD;3{K+d~)L9LUtqhDdUy0FS1_1qgY?lB4

diff --git a/src/audio/Engine.ts b/src/audio/Engine.ts
index af0d885..86d0a5b 100644
--- a/src/audio/Engine.ts
+++ b/src/audio/Engine.ts
@@ -218,6 +218,7 @@ export class AudioEngine {
         const freq = NOTE_FREQ_MAP[note];
         if (!freq) return;
 
+        this.stopBassNote(note, time);
         const osc = this.audioContext.createOscillator();
         const gain = this.audioContext.createGain();
         osc.type = 'sine';
diff --git a/src/hooks/useDrumMachine.ts b/src/hooks/useDrumMachine.ts
index 9c35889..eb72f44 100644
--- a/src/hooks/useDrumMachine.ts
+++ b/src/hooks/useDrumMachine.ts
@@ -12,6 +12,7 @@ export const useDrumMachine = (_lastMessage: any, sendMessage: (message: any) =>
   } = useStore();
 
   const timerRef = useRef<number | null>(null);
+  const wasPlayingRef = useRef<boolean>(false);
   const lookahead = 25.0;
   const scheduleAheadTime = 0.1;
   const nextNoteTimeRef = useRef<number>(0.0);
@@ -161,8 +162,8 @@ export const useDrumMachine = (_lastMessage: any, sendMessage: (message: any) =>
   const triggerBassNote = async (note: string) => {
     await audioEngine.init();
     audioEngine.startBassNote(note, audioEngine.getCurrentTime());
-    // Stop after 1s for preview
-    setTimeout(() => audioEngine.stopBassNote(note, audioEngine.getCurrentTime()), 1000);
+    // Stop after 500ms for preview
+    setTimeout(() => audioEngine.stopBassNote(note, audioEngine.getCurrentTime()), 500);
   };
 
   const exportBeat = () => {
@@ -199,9 +200,13 @@ export const useDrumMachine = (_lastMessage: any, sendMessage: (message: any) =>
       scheduler();
     } else {
       if (timerRef.current) clearTimeout(timerRef.current);
-      audioEngine.stopAllBassNotes();
+      // Only stop all notes if we just switched from playing to stopped
+      if (wasPlayingRef.current) {
+        audioEngine.stopAllBassNotes();
+      }
       setCurrentStep(null);
     }
+    wasPlayingRef.current = isPlaying;
     return () => {
       if (timerRef.current) clearTimeout(timerRef.current);
     };