From 2733c23ce93ef838a9bb745d084d794b4475598a Mon Sep 17 00:00:00 2001 From: "Alan G. Sanchez" Date: Mon, 29 Aug 2022 11:57:02 -0700 Subject: [PATCH] Fixed typos. --- example_8.md | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/example_8.md b/example_8.md index 6cef522..06080b4 100644 --- a/example_8.md +++ b/example_8.md @@ -2,19 +2,15 @@ This example will showcase how to save the interpreted speech from Stretch's [ReSpeaker Mic Array v2.0](https://wiki.seeedstudio.com/ReSpeaker_Mic_Array_v2.0/) to a text file. -

- - -Begin by running the `sample_respeaker.launch` file in a terminal. +Begin by running the `respeaker.launch` file in a terminal. ```bash # Terminal 1 roslaunch stretch_core respeaker.launch ``` - Then run the speech_text node. ```bash @@ -22,7 +18,6 @@ Then run the speech_text node. cd catkin_ws/src/stretch_tutorials/src/ python speech_text.py ``` - The ReSpeaker will be listening and will start to interpret speech and save the transcript to a text file. To stop shutdown the node, type **Ctrl** + **c** in the terminal. ### The Code @@ -66,7 +61,6 @@ if __name__ == '__main__': rospy.spin() ``` - ### The Code Explained Now let's break the code down. @@ -75,18 +69,15 @@ Now let's break the code down. ``` Every Python ROS [Node](http://wiki.ros.org/Nodes) will have this declaration at the top. The first line makes sure your script is executed as a Python script. - ```python import rospy import os ``` - -You need to import rospy if you are writing a ROS Node. +You need to import `rospy` if you are writing a ROS [Node](http://wiki.ros.org/Nodes). ```python from speech_recognition_msgs.msg import SpeechRecognitionCandidates ``` - Import `SpeechRecognitionCandidates` from the `speech_recgonition_msgs.msg` so that we can receive the interpreted speech. ```python @@ -96,35 +87,29 @@ def __init__(self): """ self.sub = rospy.Subscriber("speech_to_text", SpeechRecognitionCandidates, self.callback) ``` - Set up a subscriber. We're going to subscribe to the topic "*speech_to_text*", looking for `SpeechRecognitionCandidates` messages. When a message comes in, ROS is going to pass it to the function "callback" automatically. ```python self.save_path = '/home/hello-robot/catkin_ws/src/stretch_tutorials/stored_data ``` - Define the directory to save the text file. ```python transcript = ' '.join(map(str,msg.transcript)) ``` - Take all items in the iterable list and join them into a single string named transcript. ```python file_name = 'speech.txt' completeName = os.path.join(self.save_path, file_name) ``` - Define the file name and create a complete path directory. - ```python with open(completeName, "a+") as file_object: file_object.write("\n") file_object.write(transcript) ``` - Append the transcript to the text file. ```python @@ -132,9 +117,9 @@ rospy.init_node('speech_text') SpeechText() ``` -The next line, `rospy.init_node(NAME, ...)`, is very important as it tells rospy the name of your node -- until rospy has this information, it cannot start communicating with the ROS Master. In this case, your node will take on the name talker. NOTE: the name must be a base name, i.e. it cannot contain any slashes "/". +The next line, `rospy.init_node(NAME, ...)`, is very important as it tells rospy the name of your node -- until rospy has this information, it cannot start communicating with the ROS Master. **NOTE:** the name must be a base name, i.e. it cannot contain any slashes "/". -Instantiate the class with `SpeechText()` +Instantiate the `SpeechText()` class. ```python rospy.spin()