diff --git a/README.md b/README.md
index d57e1ac..181f78c 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,30 @@ Parakeet aims to provide a flexible, efficient and state-of-the-art text-to-spee
 
 ## Installation
 
+### Install Paddlepaddle
+
+See [install](https://www.paddlepaddle.org.cn/install/quick) for more details. This repo requires paddlepaddle's version is above 1.7.
+
+### Install Parakeet
+
 ```bash
-pip install parakeet
+# git clone this repo first
+cd Parakeet
+pip install -e .
 ```
 
+### Install CMUdict for nltk
+
+CMUdict from nltk is used to transform text into phonemes.
+
+```python
+import nltk
+nltk.download("cmudict")
+```
 ## Supported models
 
-- [Deep Voice 3: Scaling Text-to-Speech with Convolutional Sequence Learning](./deepvoice3)
+- [Deep Voice 3: Scaling Text-to-Speech with Convolutional Sequence Learning](https://arxiv.org/abs/1710.07654)
+
+## Examples
+
+- [Train a deepvoice 3 model with ljspeech dataset](./parakeet/examples/deepvoice3) 
diff --git a/examples/deepvoice3/README.md b/examples/deepvoice3/README.md
index 5a0909e..43e1939 100644
--- a/examples/deepvoice3/README.md
+++ b/examples/deepvoice3/README.md
@@ -4,39 +4,6 @@ Paddle implementation of deepvoice 3 in dynamic graph, a convolutional network b
 
 We implement Deepvoice 3 in paddle fluid with dynamic graph, which is convenient for flexible network architectures.
 
-## Installation
-
-### Install paddlepaddle. 
-This implementation requires the latest develop version of paddlepaddle. You can either download the compiled package or build paddle from source.
-
-1. Install the compiled package, via pip, conda or docker. See [**Installation Mannuals**](https://www.paddlepaddle.org.cn/documentation/docs/en/beginners_guide/install/index_en.html) for more details.
-
-2. Build paddlepaddle from source. See [**Compile From Source Code**](https://www.paddlepaddle.org.cn/documentation/docs/en/beginners_guide/install/compile/fromsource_en.html) for more details. Note that if you want to enable data parallel training for multiple GPUs, you should set `-DWITH_DISTRIBUTE=ON` with cmake.
-
-### Install parakeet
-You can choose to install via pypi or clone the repository and install manually.
-
-1. Install via pypi.
-   ```bash
-   pip install paddle-parakeet
-   ```
-
-2. Install manually.
-   ```bash
-   git clone <url>
-   cd Parakeet/
-   pip install -e .
-   ```
-
-### Download cmudict for nltk
-You also need to download cmudict for nltk, because convert text into phonemes with `cmudict`.
-
-```python
-import nltk
-nltk.download("punkt")
-nltk.download("cmudict")
-```
-
 ## Dataset
 
 We experiment with the LJSpeech dataset. Download and unzip [LJSpeech](https://keithito.com/LJ-Speech-Dataset/).
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 50a1da6..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-numba==0.45.1
-numpy==1.16.4
-nltk==3.4.4
-scipy
-unidecode==1.1.1
-inflect==2.1.0
-librosa==0.7.0
-tqdm==4.35.0
-tensorboardX==1.8
-matplotlib
-requests==2.22.0
-lws==1.2.4
-nnmnkwii
-tensorboard