From 98c1131058d2bc7fb8bda23c2325ea626135fc80 Mon Sep 17 00:00:00 2001
From: KP <109694228@qq.com>
Date: Thu, 4 Nov 2021 17:11:22 +0800
Subject: [PATCH] Add librosa reference.

---
 audio/paddleaudio/features/core.py | 1 +
 docs/source/reference.md           | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/audio/paddleaudio/features/core.py b/audio/paddleaudio/features/core.py
index f53f60f3..dd25724f 100644
--- a/audio/paddleaudio/features/core.py
+++ b/audio/paddleaudio/features/core.py
@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+# Modified from librosa(https://github.com/librosa/librosa)
 import warnings
 from typing import List
 from typing import Optional
diff --git a/docs/source/reference.md b/docs/source/reference.md
index ac704cb0..39c7afe5 100644
--- a/docs/source/reference.md
+++ b/docs/source/reference.md
@@ -31,3 +31,7 @@ We borrowed a lot of code from these repos to build `model` and `engine`, thank
 * [chainer](https://github.com/chainer/chainer/blob/master/LICENSE)
 - MIT License
 - Updater, Trainer and more utils.
+
+* [librosa](https://github.com/librosa/librosa/blob/main/LICENSE.md)
+- ISC License
+- Audio feature