From cc64f2f15c8990024b32b4c52600b7d5143ec3ef Mon Sep 17 00:00:00 2001
From: Daniel Povey <dpovey@gmail.com>
Date: Sat, 1 Oct 2022 12:24:07 +0800
Subject: [PATCH] Reduce feature_mask_dropout_prob from 0.25 to 0.15.

---
 egs/librispeech/ASR/pruned_transducer_stateless7/conformer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/conformer.py b/egs/librispeech/ASR/pruned_transducer_stateless7/conformer.py
index 8ef452898..85049f915 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/conformer.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/conformer.py
@@ -359,7 +359,7 @@ class ConformerEncoder(nn.Module):
         if self.training:
             # feature mask.
             # on 0.25 of the frames, drop out the extra features [force a bottleneck.]
-            feature_mask_dropout_prob = 0.25
+            feature_mask_dropout_prob = 0.15
             feature_unmasked_dim = 256 #  hardcode dim for now, 1st 256 are non-masked.
 
             feature_mask = torch.ones_like(src)  # S, N, E