diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
new file mode 100644
index 00000000..415f24a9
--- /dev/null
+++ b/.devcontainer/Dockerfile
@@ -0,0 +1,16 @@
+FROM mcr.microsoft.com/devcontainers/miniconda
+
+# Copy environment.yml (if found) to a temp location so we update the environment. Also
+# copy "noop.txt" so the COPY instruction does not fail if no environment.yml exists.
+COPY environment.yml* .devcontainer/noop.txt /tmp/conda-tmp/
+RUN if [ -f "/tmp/conda-tmp/environment.yml" ]; then umask 0002 && /opt/conda/bin/conda env update -n base -f /tmp/conda-tmp/environment.yml; fi \
+    && rm -rf /tmp/conda-tmp
+
+# Install python 3.6
+RUN conda install -y python=3.6 \
+    && pip install --no-cache-dir pipx \
+    && pipx reinstall-all
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 00000000..43d26c59
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,24 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/miniconda
+{
+	"name": "Miniconda (Python 3)",
+	"build": { 
+		"context": "..",
+		"dockerfile": "Dockerfile"
+	}
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "python --version",
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}
diff --git a/.devcontainer/noop.txt b/.devcontainer/noop.txt
new file mode 100644
index 00000000..abee1954
--- /dev/null
+++ b/.devcontainer/noop.txt
@@ -0,0 +1,3 @@
+This file is copied into the container along with environment.yml* from the
+parent folder. This is done to prevent the Dockerfile COPY instruction from 
+failing if no environment.yml is found.
\ No newline at end of file
diff --git a/README.md b/README.md
index 5cc97b56..68ea26d4 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ Here's a notebook that previews what you will see in Chapter 1:
 
 * [chap01preview.ipynb](https://colab.research.google.com/github/AllenDowney/ThinkDSP/blob/master/code/chap01preview.ipynb)
 
-And if you want to see where were headed, here's a preview of Chapter 10:
+And if you want to see where we are headed, here's a preview of Chapter 10:
 
 * [chap10preview.ipynb](https://colab.research.google.com/github/AllenDowney/ThinkDSP/blob/master/code/chap10preview.ipynb)
 
diff --git a/book/book.tex b/book/book.tex
index d451ae42..055b710b 100644
--- a/book/book.tex
+++ b/book/book.tex
@@ -3294,7 +3294,7 @@ \section{Synthesis}
 
     ts = np.linspace(0, 1, framerate)
     ys = synthesize1(amps, fs, ts)
-    wave = thinkdsp.Wave(ys, framerate)
+    wave = thinkdsp.Wave(ys, ts, framerate)
 \end{verbatim}
 
 This example makes a signal that contains a fundamental frequency at
@@ -5932,7 +5932,7 @@ \section{Acoustic response}
 Here's the gunshot:
 
 \begin{verbatim}
-    response = thinkdsp.read_wave('180961__kleeb__gunshots.wav')
+    response = thinkdsp.read_wave('180960__kleeb__gunshots.wav')
     response = response.segment(start=0.26, duration=5.0)
     response.normalize()
     response.plot()