diff --git a/examples/v18_to_v2x/.gitignore b/examples/1xt2x/.gitignore
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rename from examples/v18_to_v2x/.gitignore
rename to examples/1xt2x/.gitignore
diff --git a/examples/1xt2x/README.md b/examples/1xt2x/README.md
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--- /dev/null
+++ b/examples/1xt2x/README.md
@@ -0,0 +1,11 @@
+# 1xt2x
+
+Convert Deepspeech 1.8 released model to 2.x.
+
+## Model
+* Deepspeech2x
+
+## Exp
+* baidu_en8k
+* aishell
+* librispeech
diff --git a/examples/v18_to_v2x/exp_aishell/.gitignore b/examples/1xt2x/aishell/.gitignore
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diff --git a/examples/v18_to_v2x/exp_aishell/conf/deepspeech2.yaml b/examples/1xt2x/aishell/conf/deepspeech2.yaml
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rename to examples/1xt2x/aishell/conf/deepspeech2.yaml
diff --git a/examples/v18_to_v2x/exp_aishell/local/data.sh b/examples/1xt2x/aishell/local/data.sh
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diff --git a/examples/v18_to_v2x/exp_aishell/local/download_lm_ch.sh b/examples/1xt2x/aishell/local/download_lm_ch.sh
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diff --git a/examples/v18_to_v2x/exp_aishell/local/test.sh b/examples/1xt2x/aishell/local/test.sh
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diff --git a/examples/v18_to_v2x/exp_aishell/path.sh b/examples/1xt2x/aishell/path.sh
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diff --git a/examples/v18_to_v2x/exp_aishell/run.sh b/examples/1xt2x/aishell/run.sh
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rename from examples/v18_to_v2x/exp_aishell/run.sh
rename to examples/1xt2x/aishell/run.sh
diff --git a/examples/v18_to_v2x/exp_baidu_en8k/.gitignore b/examples/1xt2x/baidu_en8k/.gitignore
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rename from examples/v18_to_v2x/exp_baidu_en8k/.gitignore
rename to examples/1xt2x/baidu_en8k/.gitignore
diff --git a/examples/v18_to_v2x/exp_baidu_en8k/conf/augmentation.json b/examples/1xt2x/baidu_en8k/conf/augmentation.json
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diff --git a/examples/v18_to_v2x/exp_baidu_en8k/conf/deepspeech2.yaml b/examples/1xt2x/baidu_en8k/conf/deepspeech2.yaml
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rename from examples/v18_to_v2x/exp_baidu_en8k/conf/deepspeech2.yaml
rename to examples/1xt2x/baidu_en8k/conf/deepspeech2.yaml
diff --git a/examples/v18_to_v2x/exp_baidu_en8k/local/data.sh b/examples/1xt2x/baidu_en8k/local/data.sh
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rename from examples/v18_to_v2x/exp_baidu_en8k/local/data.sh
rename to examples/1xt2x/baidu_en8k/local/data.sh
diff --git a/examples/v18_to_v2x/exp_baidu_en8k/local/download_lm_en.sh b/examples/1xt2x/baidu_en8k/local/download_lm_en.sh
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rename from examples/v18_to_v2x/exp_baidu_en8k/local/download_lm_en.sh
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diff --git a/examples/v18_to_v2x/exp_baidu_en8k/local/download_model.sh b/examples/1xt2x/baidu_en8k/local/download_model.sh
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diff --git a/examples/v18_to_v2x/exp_baidu_en8k/local/test.sh b/examples/1xt2x/baidu_en8k/local/test.sh
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diff --git a/examples/v18_to_v2x/exp_baidu_en8k/path.sh b/examples/1xt2x/baidu_en8k/path.sh
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diff --git a/examples/v18_to_v2x/exp_baidu_en8k/run.sh b/examples/1xt2x/baidu_en8k/run.sh
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diff --git a/examples/v18_to_v2x/deepspeech2x/__init__.py b/examples/1xt2x/deepspeech2x/__init__.py
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diff --git a/examples/v18_to_v2x/deepspeech2x/bin/test.py b/examples/1xt2x/deepspeech2x/bin/test.py
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diff --git a/examples/v18_to_v2x/deepspeech2x/models/ds2/__init__.py b/examples/1xt2x/deepspeech2x/models/ds2/__init__.py
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diff --git a/examples/v18_to_v2x/deepspeech2x/models/ds2/deepspeech2.py b/examples/1xt2x/deepspeech2x/models/ds2/deepspeech2.py
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diff --git a/examples/v18_to_v2x/deepspeech2x/models/ds2/rnn.py b/examples/1xt2x/deepspeech2x/models/ds2/rnn.py
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diff --git a/examples/v18_to_v2x/exp_librispeech/.gitignore b/examples/1xt2x/librispeech/.gitignore
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diff --git a/examples/v18_to_v2x/exp_librispeech/conf/deepspeech2.yaml b/examples/1xt2x/librispeech/conf/deepspeech2.yaml
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rename from examples/v18_to_v2x/exp_librispeech/conf/deepspeech2.yaml
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diff --git a/examples/v18_to_v2x/exp_librispeech/local/data.sh b/examples/1xt2x/librispeech/local/data.sh
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diff --git a/examples/v18_to_v2x/exp_librispeech/local/download_lm_en.sh b/examples/1xt2x/librispeech/local/download_lm_en.sh
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