Use the IIR all-pass filter by default

2 files changed, 7 insertions, 6 deletions

diff --git a/alsoftrc.sample b/alsoftrc.sample
index 50aa7b01..d7427db5 100644
--- a/alsoftrc.sample
+++ b/alsoftrc.sample
@@ -356,17 +356,18 @@
 ## decode-filter: (global)
 #  Specifies the all-pass filter type for UHJ decoding and Super Stereo
 #  processing. Valid values are:
-#  fir256 - utilizes a 256-point FIR filter.
-#  fir512 - utilizes a 512-point FIR filter, providing a wider pass-band, at
-#           the cost of more CPU use.
 #  iir - utilizes dual IIR filters, providing a wide pass-band with low CPU
 #        use, but may exhibit some low-level distortion.
-#decode-filter = fir256
+#  fir256 - utilizes a 256-point FIR filter, providing more stable results but
+#           exhibiting attenuation in the lower and higher frequency bands.
+#  fir512 - utilizes a 512-point FIR filter, providing a wider pass-band than
+#           fir256, at the cost of more CPU use.
+#decode-filter = iir
 
 ## encode-filter: (global)
 #  Specifies the all-pass filter type for UHJ output encoding. Valid values are
 #  the same as for decode-filter.
-#encode-filter = fir256
+#encode-filter = iir
 
 ##
 ## Reverb effect stuff (includes EAX reverb)
diff --git a/core/uhjfilter.h b/core/uhjfilter.h
index e0aa73d2..49819f00 100644
--- a/core/uhjfilter.h
+++ b/core/uhjfilter.h
@@ -16,7 +16,7 @@ enum class UhjQualityType : uint8_t {
     IIR = 0,
     FIR256,
     FIR512,
-    Default = FIR256
+    Default = IIR
 };
 
 extern UhjQualityType UhjDecodeQuality;