Fix filter optimization causing click

Resolves #53

README.md

@@ -40,7 +40,7 @@ This repository contains both the library and a complete musical web application
 - Suitable for both **real-time** and **offline** synthesis
 - **Excellent SoundFont support:**
   - **Full Generator Support**
-  - **Modulator Support:** *First (to my knowledge) JavaScript SoundFont synth with that feature!*
+  - **Full Modulator Support:** *First (to my knowledge) JavaScript SoundFont synth with that feature!*
   - **SoundFont3 Support:** Play compressed SoundFonts!
   - **Experimental SF2Pack Support:** Play soundfonts compressed with BASSMIDI! (*Note: only works with vorbis compression*)
   - **Can load very large SoundFonts:** up to 4GB! *Note: Only Firefox handles this well; Chromium has a hard-coded memory limit*

package.json

@@ -1,6 +1,6 @@
 {
   "name": "SpessaSynth",
-  "version": "3.20.44",
+  "version": "3.21.0",
   "type": "module",
   "scripts": {
     "start": "node src/website/server/server.js"

src/spessasynth_lib/README.md

@@ -33,55 +33,37 @@ document.getElementById("button").onclick = async () =>
 ## Current Features
 
 ### Easy Integration
-
 - **Modular design:** Easy integration into other projects (load what you need)
-- **[Detailed documentation:](https://github.com/spessasus/SpessaSynth/wiki/Home)**
-  With [examples!](https://github.com/spessasus/SpessaSynth/wiki/Usage-As-Library#examples)
-- **Easy to Use:** basic setup is
-  just [two lines of code!](https://github.com/spessasus/SpessaSynth/wiki/Usage-As-Library#minimal-setup)
+- **[Detailed documentation:](https://github.com/spessasus/SpessaSynth/wiki/Home)** With [examples!](https://github.com/spessasus/SpessaSynth/wiki/Usage-As-Library#examples)
+- **Easy to Use:** basic setup is just [two lines of code!](https://github.com/spessasus/SpessaSynth/wiki/Usage-As-Library#minimal-setup)
 - **No dependencies:** _batteries included!_
 
 ### Powerful SoundFont Synthesizer
-
 - Suitable for both **real-time** and **offline** synthesis
 - **Excellent SoundFont support:**
-    - **Generator Support**
-    - **Modulator Support:** *First (to my knowledge) JavaScript SoundFont synth with that feature!*
-    - **SoundFont3 Support:** Play compressed SoundFonts!
-    - **Experimental SF2Pack Support:** Play soundfonts compressed with BASSMIDI! (*Note: only works with vorbis
-      compression*)
-    - **Can load very large SoundFonts:** up to 4GB! *Note: Only Firefox handles this well; Chromium has a hard-coded
-      memory limit*
+  - **Full Generator Support**
+  - **Full Modulator Support:** *First (to my knowledge) JavaScript SoundFont synth with that feature!*
+  - **SoundFont3 Support:** Play compressed SoundFonts!
+  - **Experimental SF2Pack Support:** Play soundfonts compressed with BASSMIDI! (*Note: only works with vorbis compression*)
+  - **Can load very large SoundFonts:** up to 4GB! *Note: Only Firefox handles this well; Chromium has a hard-coded memory limit*
 - **Soundfont manager:** Stack multiple soundfonts!
 - **DLS Level 1 and 2 Support:** *internally converted to sf2*
-- **Reverb and chorus support:
-  ** [customizable!](https://github.com/spessasus/SpessaSynth/wiki/Synthetizer-Class#effects-configuration-object)
-- **Export audio files**
-  using [OfflineAudioContext](https://developer.mozilla.org/en-US/docs/Web/API/OfflineAudioContext)
--
-    *
-
-*[Custom modulators for additional controllers](https://github.com/spessasus/SpessaSynth/wiki/Modulator-Class#default-modulators):
-** Why not?
-
-- **Written using AudioWorklets:**
-    - Runs in a **separate thread** for maximum performance
-    - Supported by all modern browsers
+- **Reverb and chorus support:** [customizable!](https://github.com/spessasus/SpessaSynth/wiki/Synthetizer-Class#effects-configuration-object)
+- **Export audio files** using [OfflineAudioContext](https://developer.mozilla.org/en-US/docs/Web/API/OfflineAudioContext)
+- **[Custom modulators for additional controllers](https://github.com/spessasus/SpessaSynth/wiki/Modulator-Class#default-modulators):** Why not?
+- **Written using AudioWorklets:** 
+  - Runs in a **separate thread** for maximum performance
+  - Supported by all modern browsers
 - **Unlimited channel count:** Your CPU is the limit!
 - **Excellent MIDI Standards Support:**
-    - **MIDI Controller Support:** Default supported
-      controllers [here](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#supported-controllers)
-    - **MIDI Tuning Standard Support:
-      ** [more info here](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#midi-tuning-standard)
-    - [Full **RPN** and limited **NRPN
-      ** support](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#supported-registered-parameters)
-    - Supports some [**Roland GS** and **Yamaha XG
-      ** system exclusives](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#supported-system-exclusives)
+  - **MIDI Controller Support:** Default supported controllers [here](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#supported-controllers)
+  - **MIDI Tuning Standard Support:** [more info here](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#midi-tuning-standard)
+  - [Full **RPN** and limited **NRPN** support](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#supported-registered-parameters)
+  - Supports some [**Roland GS** and **Yamaha XG** system exclusives](https://github.com/spessasus/SpessaSynth/wiki/MIDI-Implementation#supported-system-exclusives)
 
 - **High-performance mode:** Play Rush E! _note: may kill your browser ;)_
 
 ### Built-in Powerful and Fast Sequencer
-
 - **Supports MIDI formats 0, 1, and 2:** _note: format 2 support is experimental as it's very, very rare_
 - **[Multi-Port MIDI](https://github.com/spessasus/SpessaSynth/wiki/About-Multi-Port) support:** More than 16 channels!
 - **Smart preloading:** Only preloads the samples used in the MIDI file for smooth playback (down to key and velocity!)
@@ -91,68 +73,54 @@ document.getElementById("button").onclick = async () =>
 - **Loop points support:** Ensures seamless loops
 
 ### Read and Write SoundFont and MIDI Files with Ease
-
 #### Read and write MIDI files
-
-- **Smart name detection:** Handles incorrectly formatted and non-standard track names
-- **Raw name available:** Decode in any encoding! *(Kanji? No problem!)*
-- **Port detection during load time:** Manage ports and channels easily!
-- **Used channels on track:** Quickly determine which channels are used
-- **Key range detection:** Detect the key range of the MIDI
-- **Easy MIDI editing:**
-  Use [helper functions](https://github.com/spessasus/SpessaSynth/wiki/Writing-MIDI-Files#modifymidi) to modify the song
-  to your needs!
-- **Loop detection:** Automatically detects loops in MIDIs (e.g., from _Touhou Project_)
-- **First note detection:** Skip unnecessary silence at the start by jumping to the first note!
-- **[Write MIDI files from scratch](https://github.com/spessasus/SpessaSynth/wiki/Creating-MIDI-Files)**
-- **Easy saving:** Save with
-  just [one function!](https://github.com/spessasus/SpessaSynth/wiki/Writing-MIDI-Files#writemidifile)
+  - **Smart name detection:** Handles incorrectly formatted and non-standard track names
+  - **Raw name available:** Decode in any encoding! *(Kanji? No problem!)*
+  - **Port detection during load time:** Manage ports and channels easily!
+  - **Used channels on track:** Quickly determine which channels are used
+  - **Key range detection:** Detect the key range of the MIDI
+  - **Easy MIDI editing:** Use [helper functions](https://github.com/spessasus/SpessaSynth/wiki/Writing-MIDI-Files#modifymidi) to modify the song to your needs!
+  - **Loop detection:** Automatically detects loops in MIDIs (e.g., from _Touhou Project_)
+  - **First note detection:** Skip unnecessary silence at the start by jumping to the first note!
+  - **[Write MIDI files from scratch](https://github.com/spessasus/SpessaSynth/wiki/Creating-MIDI-Files)**
+  - **Easy saving:** Save with just [one function!](https://github.com/spessasus/SpessaSynth/wiki/Writing-MIDI-Files#writemidifile)
 
 #### Read and write [RMID files with embedded SF2 soundfonts](https://github.com/spessasus/sf2-rmidi-specification#readme)
-
-- **[Level 4](https://github.com/spessasus/sf2-rmidi-specification#level-4) compliance:** Reads and writes *everything!*
-- **Compression and trimming support:** Reduce a MIDI file with a 1GB soundfont to **as small as 5MB**!
-- **DLS Version support:** The original legacy format with bank offset detection!
-- **Automatic bank shifting and validation:** Every soundfont *just works!*
-- **Metadata support:** Add title, artist, album name and cover and more! And of course read them too! *(In any
-  encoding!)*
-- **Compatible with [Falcosoft Midi Player 6!](https://falcosoft.hu/softwares.html#midiplayer)**
-- **Easy saving:
-  ** [As simple as saving a MIDI file!](https://github.com/spessasus/SpessaSynth/wiki/Writing-MIDI-Files#writermidi)
+  - **[Level 4](https://github.com/spessasus/sf2-rmidi-specification#level-4) compliance:** Reads and writes *everything!*
+  - **Compression and trimming support:** Reduce a MIDI file with a 1GB soundfont to **as small as 5MB**!
+  - **DLS Version support:** The original legacy format with bank offset detection!
+  - **Automatic bank shifting and validation:** Every soundfont *just works!*
+  - **Metadata support:** Add title, artist, album name and cover and more! And of course read them too! *(In any encoding!)*
+  - **Compatible with [Falcosoft Midi Player 6!](https://falcosoft.hu/softwares.html#midiplayer)**
+  - **Easy saving:** [As simple as saving a MIDI file!](https://github.com/spessasus/SpessaSynth/wiki/Writing-MIDI-Files#writermidi)
 
 #### Read and write SoundFont2 files
-
-- **Easy info access:** Just
-  an [object of strings!](https://github.com/spessasus/SpessaSynth/wiki/SoundFont2-Class#soundfontinfo)
-- **Smart trimming:** Trim the SoundFont to only include samples used in the MIDI *(down to key and velocity!)*
-- **sf3 conversion:** Compress SoundFont2 files to SoundFont3 with variable quality!
-- **Easy saving:** Also just [one function!](https://github.com/spessasus/SpessaSynth/wiki/SoundFont2-Class#write)
+  - **Easy info access:** Just an [object of strings!](https://github.com/spessasus/SpessaSynth/wiki/SoundFont2-Class#soundfontinfo)
+  - **Smart trimming:** Trim the SoundFont to only include samples used in the MIDI *(down to key and velocity!)*
+  - **sf3 conversion:** Compress SoundFont2 files to SoundFont3 with variable quality!
+  - **Easy saving:** Also just [one function!](https://github.com/spessasus/SpessaSynth/wiki/SoundFont2-Class#write)
 
 #### Read and write SoundFont3 files
-
-- Same features as SoundFont2 but with now with **Ogg Vorbis compression!**
-- **Variable compression quality:** You choose between file size and quality!
-- **Compression preserving:** Avoid decompressing and recompressing uncompressed samples for minimal quality loss!
+  - Same features as SoundFont2 but with now with **Ogg Vorbis compression!**
+  - **Variable compression quality:** You choose between file size and quality!
+  - **Compression preserving:** Avoid decompressing and recompressing uncompressed samples for minimal quality loss!
 
 #### Read and play DLS Level 1 or 2 files
-
-- Read DLS (DownLoadable Sounds) files as SF2 files!
-- **Works like a normal soundfont:** *Saving it as sf2 is
-  still [just one function!](https://github.com/spessasus/SpessaSynth/wiki/SoundFont2-Class#write)*
-- Converts articulators to both **modulators** and **generators**!
-- Works with both unsigned 8-bit samples and signed 16-bit samples!
-- **Covers special generator cases:** *such as modLfoToPitch*!
-- **Correct volume:** *looking at you, Viena and gm.sf2!*
-- Support built right into the synthesizer!
+  - Read DLS (DownLoadable Sounds) files as SF2 files!
+  - **Works like a normal soundfont:** *Saving it as sf2 is still [just one function!](https://github.com/spessasus/SpessaSynth/wiki/SoundFont2-Class#write)*
+  - Converts articulators to both **modulators** and **generators**!
+  - Works with both unsigned 8-bit samples and signed 16-bit samples!
+  - **Covers special generator cases:** *such as modLfoToPitch*!
+  - **Correct volume:** *looking at you, Viena and gm.sf2!*
+  - Support built right into the synthesizer!
 
 ### Export MIDI as WAV
+  - Save the MIDI file as WAV audio!
+  - **Metadata support:** *Embed metadata such as title, artist, album and more!*
+  - **Cue points:** *Write MIDI loop points as cue points!*
+  - **Loop multiple times:** *Render two (or more) loops into the file for seamless transitions!*
+  - *That's right, saving as WAV is also [just one function!](https://github.com/spessasus/SpessaSynth/wiki/Writing-Wave-Files#audiobuffertowav)*
 
-- Save the MIDI file as WAV audio!
-- **Metadata support:** *Embed metadata such as title, artist, album and more!*
-- **Cue points:** *Write MIDI loop points as cue points!*
-- **Loop multiple times:** *Render two (or more) loops into the file for seamless transitions!*
-- *That's right, saving as WAV is
-  also [just one function!](https://github.com/spessasus/SpessaSynth/wiki/Writing-Wave-Files#audiobuffertowav)*
 
 # License