docs: fix missing media inputs in TechJournalist notebook

[danyalahmed1995]

Summary

Fixes #536.

This updates the Phi-4 multimodal TechJournalist notebook so the image and audio inputs no longer rely on missing local files.

Changes

• Adds a lightweight setup cell that creates a local media/ directory.
• Downloads sample image/audio media only when missing.
• Replaces the previous hard-coded missing paths with explicit image_path and audio_path variables.
• Keeps the existing notebook flow unchanged.
• Does not add binary files to the repo.

Validation

• Parsed the updated notebook JSON successfully.
• Verified the old ./copilot.png and ./satya1.mp3 references are no longer used by the loading cells.
• Verified the new image_path, audio_path, media_dir, and urllib.request setup references exist.
• Ran a temp-directory smoke test for download, Image.open(...), and soundfile.read(...).

Note: local validation initially required installing soundfile, then the smoke test passed after explicitly closing the image handle before temp cleanup.

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates the Phi-4 multimodal TechJournalist notebook to stop relying on missing local media files by creating a local media/ folder and downloading sample image/audio assets when absent.

Changes:

• Added a setup cell that creates media/ and conditionally downloads sample image/audio via urllib.request.
• Replaced hard-coded media paths with image_path and audio_path variables.
• Updated image/audio loading cells to use the new variables.

Show a summary per file

File	Description
md/02.Application/08.Multimodel/Phi4/TechJournalist/phi_4_mm_audio_text_publish_news.ipynb	Adds conditional media download + switches notebook loading cells to use the downloaded media paths.

Copilot's findings

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Comments suppressed due to low confidence (2)

md/02.Application/08.Multimodel/Phi4/TechJournalist/phi_4_mm_audio_text_publish_news.ipynb:1

• Using an MP3 sample can make this notebook fail depending on how libsndfile/soundfile is built on the host (MP3 decoding support is not guaranteed across environments). To improve reliability, consider switching the sample audio to a WAV (or FLAC) asset known to be readable by soundfile broadly, or add a short note in the setup cell explaining that MP3 support may require additional system dependencies.

{

md/02.Application/08.Multimodel/Phi4/TechJournalist/phi_4_mm_audio_text_publish_news.ipynb:1

• Using an MP3 sample can make this notebook fail depending on how libsndfile/soundfile is built on the host (MP3 decoding support is not guaranteed across environments). To improve reliability, consider switching the sample audio to a WAV (or FLAC) asset known to be readable by soundfile broadly, or add a short note in the setup cell explaining that MP3 support may require additional system dependencies.

{

• Files reviewed: 1/1 changed files
• Comments generated: 2