fix(cpc): use upstream CPCModel (ChannelNorm+padding) — 100 frames/sec, fixes 100% WER (#7)

config.json

@@ -22,8 +22,8 @@
     "win_length": 400,
     "parity": {
       "cpc_encoder": {
-        "max_abs": 1.0609626770019531e-05,
-        "mean_abs": 1.455821347917663e-07
+        "max_abs": 6.38e-06,
+        "mean_abs": 7.15e-07
       },
       "triaan_vc": {
         "max_abs": 3.7550926208496094e-06,
@@ -32,7 +32,8 @@
       "pwg_vocoder": {
         "max_abs": 5.415081977844238e-05,
         "mean_abs": 1.355652671009011e-06
-      }
+      },
+      "cpc_encoder_note": "upstream CPCModel via load_cpc (ChannelNorm + conv padding); 100 frames per 16k samples"
     }
   }
 }