diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 85366856..5a46b8fe 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,8 +3,11 @@ sc_usb_audio Change Log
 
 6.15.1
 ------
+    - ADDED:      Ability to offset DAC data from ADC data. Useful if ADC and DAC do not agree 
+                  on TDM formats as on the xCORE-200-MC-AUDIO board. See I2S_ADC_TO_DAC_SAMP_OFFSET
     - RESOLVED:   DAC data mis-alignment issue in TDM slave mode
 
+
 6.15.0
 ------
     - CHANGE:     Removed 32kHz sample-rate support when PDM microphones enabled (lib_mic_array
diff --git a/module_usb_audio/audio.xc b/module_usb_audio/audio.xc
index e33166f7..ac1b3168 100755
--- a/module_usb_audio/audio.xc
+++ b/module_usb_audio/audio.xc
@@ -106,6 +106,12 @@ extern void device_reboot(void);
 #define MAX_DIVIDE (MAX_DIVIDE_48)
 #endif
 
+/* Useful for correcting a difference in sample clock polarity between DAC and ADC */
+#ifndef I2S_ADC_TO_DAC_SAMP_OFFSET
+#define I2S_ADC_TO_DAC_SAMP_OFFSET 0
+#endif
+
+
 #ifndef CODEC_MASTER
 static inline void doI2SClocks(unsigned divide)
 {
@@ -656,7 +662,7 @@ unsigned static deliver(chanend c_out, chanend ?c_spd_out,
             /* Output "even" channel to DAC (i.e. left) */
             for(int i = 0; i < I2S_CHANS_DAC; i+=I2S_CHANS_PER_FRAME)
             {
-                p_i2s_dac[index++] <: bitrev(samplesOut[(frameCount)+i]);
+                p_i2s_dac[index++] <: bitrev(samplesOut[((frameCount+I2S_ADC_TO_DAC_SAMP_OFFSET)&(I2S_CHANS_PER_FRAME-1))+i]);
             }
 #endif
 
@@ -761,7 +767,7 @@ unsigned static deliver(chanend c_out, chanend ?c_spd_out,
 #pragma loop unroll
             for(int i = 1; i < I2S_CHANS_DAC; i+=I2S_CHANS_PER_FRAME)
             {
-                p_i2s_dac[index++] <: bitrev(samplesOut[frameCount+i]);
+                p_i2s_dac[index++] <: bitrev(samplesOut[(frameCount+i+I2S_ADC_TO_DAC_SAMP_OFFSET)&(I2S_CHANS_PER_FRAME-1)]);
             }
 #endif