Study Note from a Lecture

Open the lecture video

Click the button in the Obsidian ribbon (left sidebar).

Paste this URL and press Enter:

https://www.youtube.com/watch?v=xIZQRjkwV9Q

The ECG lecture opens in a new player tab.

Timestamp two key concepts

Play the video. At 0:10, click in the player's action bar. The plugin automatically opens a media note side-by-side with the player and inserts a timestamp link. Type the rest of the line so it reads:

- [00:10](https://www.youtube.com/watch?v=xIZQRjkwV9Q#t=10) ECG fundamentals: tool for visualizing electrical waves through the heart

Continue to 1:35. Click again and type:

- [01:35](https://www.youtube.com/watch?v=xIZQRjkwV9Q#t=95) Dipole and vector: positive charge determines the direction of deflection

You now have two timestamped entries — the same technique from Your First Timestamped Note.

Capture a full-frame screenshot

At 1:42, the video shows a dipole vector diagram. Pause the player on this frame.

Place your cursor on a new line at the end of your note, then right-click to open the editor context menu. Select MediaAdd screenshot.

The plugin saves the current frame to your vault and inserts an image embed at the cursor:

![[attachment/mx-img-…-pt102s.webp]]

Press Enter to start a new line and type a caption:

![[attachment/mx-img-…-pt102s.webp]]
Dipole vector diagram — arrow points toward positive charge

Capture a clipped screenshot

At 5:30, the video shows two diagrams side by side — the coronal-plane limb leads on the left and the transverse-plane chest leads on the right. You only need the left diagram.

Pause the player. Place your cursor on a new line at the end of your note, then right-click. Select MediaClip and add screenshot.

A crop overlay appears on the video. Drag to select just the coronal-plane diagram on the left, then confirm. The plugin saves the cropped image and inserts it:

![[attachment/mx-img-…-pt330s.webp]]

Press Enter to start a new line and type a caption:

![[attachment/mx-img-…-pt330s.webp]]
Hexaxial reference system — all six limb-lead vectors in the coronal plane

Create a media clip

Timestamps mark a single moment; a media clip marks a range. This is useful when a concept takes several seconds to unfold.

Seek to 0:56, the start of the dipole mechanism explanation. Place your cursor on a new line at the end of your note, right-click, and select MediaAdd media clip embed. A clip embed appears in your note:

- ![[00:56|400]](https://www.youtube.com/watch?v=xIZQRjkwV9Q#t=00:56,e)

The e means "play to the end of the video." To trim the clip, right-click on the embed and select Edit hash properties. The hash property editor opens.

Set the end time to 1:52 and confirm. The embed now plays only the 56-second segment. See Hash Properties for the full list of properties you can set on embeds.

- ![[00:56|400]](https://www.youtube.com/watch?v=xIZQRjkwV9Q#t=00:56,01:52)

Type an annotation after the embed:

- ![[00:56|400]](https://www.youtube.com/watch?v=xIZQRjkwV9Q#t=00:56,01:52) The dipole mechanism explained

The clip renders as an inline player in your note. Click it to play the segment from 0:56 to 1:52.

Review your study note

Your note now has three kinds of references:

• Timestamp links that jump to a single moment
• Screenshots of key diagrams, captured full or cropped
• A clip embed that plays a specific segment inline

Click each timestamp link — the player should jump to that moment. Click the clip embed — it should play from 0:56 and stop at 1:52.

Revisit the lecture any time

Close the player tab. When you want to return, click in the ribbon again. The quick switcher works like Obsidian's built-in vault switcher — your ECG lecture appears at the top under Recent. You can also type ECG in the search box to find it. Press Enter to reopen the player.

Everything in the note persists in your vault.