diff --git a/platformio.ini b/platformio.ini
index af3b5857..3eb79632 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -83,8 +83,10 @@ default_envs =
   esp32_4MB_V4_S_eth       ;; esp32 4MB "V4" build with ethernet support
   ; esp32_4MB_PSRAM_REV3_S ;; WROVER-E experimental, optimized for WROVER-E with "revision3" chip
   esp32_4MB_PSRAM_S        ;; esp32 WROVER with PSRAM; HUB75 supported
-  esp32_16MB_V4_S          ;; esp32 16MB - HUB75 supported, optimized for speed
-  esp32_16MB_V4_M          ;; esp32 16MB - HUB75 supported
+  esp32_16MB_V4_S          ;; esp32 16MB - without HUB75 driver, optimized for speed
+  esp32_16MB_V4_M          ;; esp32 16MB - without HUB75 driver
+  esp32_16MB_V4_S_HUB75    ;; esp32 16MB - HUB75 supported, optimized for speed
+  ; esp32_16MB_V4_M_HUB75  ;; esp32 16MB - HUB75 supported
   esp32_16MB_V4_M_debug    ;; esp32 16MB - for out-of-the-box debugging
   ;;
   esp32S3_4MB_S            ;; experimental, for HD-WF2 (HUB75 supported)
@@ -2040,13 +2042,13 @@ board_build.flash_mode = qio ; (dio = dual i/o; more compatible than qio = quad
 ; Flash: [==========]  98.1% (used 1863653 bytes from 1900544 bytes)
 
 ;; V4 build for 16MB flash, optimized for speed; HUB75 supported
-[env:esp32_16MB_V4_S]
+[env:esp32_16MB_V4_S_HUB75]
 extends = esp32_4MB_V4_S_base
 build_unflags = ${esp32_4MB_V4_S_base.build_unflags}
   ${Speed_Flags.build_unflags}  ;; to override -Os
 build_flags = ${esp32_4MB_V4_S_base.esp32_build_flags}
   ${Speed_Flags.build_flags_V4}  ;; optimize for speed instead of size
-  -D WLED_RELEASE_NAME=esp32_16MB_V4_S
+  -D WLED_RELEASE_NAME=esp32_16MB_V4_S_HUB75
   -D WLED_WATCHDOG_TIMEOUT=0 #-D WLED_DISABLE_BROWNOUT_DET
   -D ARDUINO_USB_CDC_ON_BOOT=0 ; needed for arduino-esp32 >=2.0.4; avoids errors on startup
   -D WLEDMM_FASTPATH ; WLEDMM experimental option. Reduces audio lag (latency), and allows for faster LED framerates. May break compatibility with previous versions.
@@ -2069,11 +2071,27 @@ board_build.partitions = ${esp32.extreme_partitions} ;; WLED extended for 16MB f
 ; RAM:   [==        ]  23.7% (used 77704 bytes from 327680 bytes)
 ; Flash: [========  ]  84.4% (used 1770341 bytes from 2097152 bytes)
 
+;; same as above, but without HUB75 driver - better for I2S audio input
+[env:esp32_16MB_V4_S]
+extends = env:esp32_16MB_V4_S_HUB75
+build_unflags = ${env:esp32_16MB_V4_S_HUB75.build_unflags}
+  -D WLED_RELEASE_NAME=esp32_16MB_V4_S_HUB75
+  -D WLED_ENABLE_HUB75MATRIX ;; remove HUB driver
+  -D WLEDMM_SLOWPATH         ;; not necessary without HUB75
+  -D SR_DMTYPE=254           ;; not necessary without HUB75
+build_flags = ${env:esp32_16MB_V4_S_HUB75.build_flags}
+  -D WLED_RELEASE_NAME=esp32_16MB_V4_S
+lib_deps = ${esp32_4MB_V4_S_base.esp32_lib_deps}
+    ${common_mm.animartrix_lib_deps}
+lib_ignore = 
+    ${common_mm.HUB75_lib_ignore}  ;; remove HUB driver dependancy
+
+
 ; compiled with ESP-IDF 4.4.1; HUB75 included (may have PIN conflicts)
-[env:esp32_16MB_V4_M]
+[env:esp32_16MB_V4_M_HUB75]
 extends = esp32_4MB_V4_M_base
 build_flags = ${esp32_4MB_V4_M_base.esp32_build_flags}
-  -D WLED_RELEASE_NAME=esp32_16MB_V4_M
+  -D WLED_RELEASE_NAME=esp32_16MB_V4_M_HUB75
   -D WLED_WATCHDOG_TIMEOUT=0 #-D WLED_DISABLE_BROWNOUT_DET
   -D ARDUINO_USB_CDC_ON_BOOT=0 ; needed for arduino-esp32 >=2.0.4; avoids errors on startup
   ;; -D WLED_ENABLE_DMX ;; disabled because it does not work with ESP-IDF 4.4.x (buggy driver in SparkFunDMX)
@@ -2098,6 +2116,22 @@ board_build.partitions = ${esp32.extreme_partitions} ;; WLED extended for 16MB f
 ; RAM:   [===       ]  25.7% (used 84104 bytes from 327680 bytes)
 ; Flash: [========  ]  80.7% (used 1692269 bytes from 2097152 bytes)
 
+;; same as above, but without HUB75 driver - better for I2S audio input
+[env:esp32_16MB_V4_M]
+extends = env:esp32_16MB_V4_M_HUB75
+build_unflags = ${env:esp32_16MB_V4_M_HUB75.build_unflags}
+  -D WLED_RELEASE_NAME=esp32_16MB_V4_M_HUB75
+  -D WLED_ENABLE_HUB75MATRIX ;; remove HUB driver
+  -D WLEDMM_SLOWPATH         ;; not necessary without HUB75
+  -D SR_DMTYPE=254           ;; not necessary without HUB75
+build_flags = ${env:esp32_16MB_V4_M_HUB75.build_flags}
+  -D WLED_RELEASE_NAME=esp32_16MB_V4_M
+lib_deps = ${esp32_4MB_V4_M_base.esp32_lib_deps}
+    ${common_mm.animartrix_lib_deps}
+lib_ignore = 
+    ${common_mm.HUB75_lib_ignore}  ;; remove HUB driver dependancy
+
+
 [env:esp32_16MB_V4_M_debug]
 extends = esp32_4MB_V4_M_base
 build_unflags = ${common.build_unflags}