Creating Audio Video Communication

These are creative/practical activities. Guidelines for each are given below:

a. A story you heard from your grandparents or parents

Steps to prepare the narrative:
1. Recall or note down the story told by your grandparent/parent in your own words.
2. Write a script — include an introduction (who told you the story, when), the main story (characters, events, moral), and a conclusion.
3. Record your voice narrating the story using a smartphone or Audacity software.
4. Speak clearly, at a moderate pace, with appropriate pauses and expressions.
5. Edit the audio in Audacity — remove background noise, adjust volume, and export as .MP3.

Sample opening line: *"My grandmother used to tell me a story about a clever crow and a thirsty traveller..."*

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b. Mimicry of different cartoons

Steps to prepare the narrative:
1. Choose 3–5 popular cartoon characters (e.g., Tom, Jerry, Doraemon, Chhota Bheem).
2. Listen carefully to each character's voice, tone, and style of speaking.
3. Write a short script where each character says a few lines.
4. Practise mimicking each voice before recording.
5. Record using a smartphone or microphone connected to a computer.
6. Edit in Audacity — add effects if needed (pitch change, echo) and export as .MP3.

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c. Collection of animal sounds

Steps to prepare the narrative:
1. Identify 5–10 animals whose sounds you want to include (e.g., dog, cat, cow, lion, frog, bird).
2. Record actual animal sounds from your surroundings OR download royalty-free animal sound clips.
3. Import all sound clips into Audacity.
4. Arrange them in sequence and add a short narration before each sound (e.g., *"This is the sound of a lion roaring..."*).
5. Mix narration and animal sounds, adjust volume levels, and export the final file as .MP3.

Note: Always ensure recordings are clear and free from unwanted background noise.

These are creative/practical project activities. Guidelines for each are given below:

a. A tree speaking to our citizens to safeguard its life

Steps to prepare the video:
1. Script Writing: Write a script where a tree (voiced by a student) speaks directly to citizens — describing its importance (oxygen, shade, fruits, preventing soil erosion) and pleading them to stop cutting trees and to plant more.
2. Visuals: Collect or click photographs/videos of trees, deforestation, and green environments.
3. Recording: Record the audio narration (voice of the tree) using a smartphone or Audacity.
4. Video Editing: Import images/video clips and audio into OpenShot Video Editor. Add text overlays, transitions, and background music.
5. Export: Export the final video in .MP4 format and share with classmates.

Sample script line: *"I am a tree. I give you oxygen to breathe, shade to rest, and fruits to eat. Please do not cut me. Plant more trees and save the Earth."*

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b. Different sources of water speaking to each other on how pollutants affect them

Steps to prepare the video:
1. Script Writing: Assign roles — River, Sea, Lake, and Groundwater — each voiced by a different student. Write a dialogue where each water body describes the pollutants affecting it (industrial waste, plastic, sewage, chemical fertilisers, etc.) and its impact on aquatic life and human health.
2. Visuals: Collect images/videos of rivers, seas, lakes, and groundwater sources — both clean and polluted.
3. Recording: Record each student's dialogue separately using a smartphone or microphone.
4. Video Editing: Use OpenShot to combine images, video clips, and audio dialogues. Add subtitles/text to identify each water body. Add transitions and background music.
5. Export: Export as .MP4 format.

Sample dialogue:
- *River says: "Factories dump their chemical waste into me every day. My fish are dying."*
- *Sea says: "Plastic bags and bottles are choking my marine life."*

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c. Advertisement for implementing rainwater harvesting at home and school

Steps to prepare the video:
1. Script Writing: Write a short 60–90 second advertisement script that explains: what rainwater harvesting is, why it is important (water conservation, recharging groundwater), and how it can be implemented at home (rooftop collection) and school (playground pits).
2. Visuals: Record a short demonstration video showing a simple rooftop rainwater harvesting model OR collect relevant images.
3. Recording: Record the voice-over/narration using Audacity and export as .MP3.
4. Video Editing: Import all clips, images, and audio into OpenShot. Add catchy text slogans like *"Save Rain, Save Life!"* Add background music and transitions.
5. Export: Export the final advertisement video as .MP4.

Sample slogan: *"Every drop of rain is precious — Harvest it today for a better tomorrow!"*

Note: All videos should be edited using free and open-source software such as OpenShot Video Editor, and audio should be recorded/edited using Audacity.

Correct Matching:

| Column A | Column B |
|---|---|
| Audacity | Audio Tool |
| Smart Phone | Recording Device |
| Open Shot | Video Editor |
| .osp | Open Shot (File Format of OpenShot project) |
| .aup | Audacity (File Format of Audacity project) |

Explanation:
- Audacity is a free and open-source audio tool used for recording and editing audio.
- Smart Phone is a recording device used to record audio and video.
- Open Shot is a free and open-source video editor used for editing videos.
- .osp is the file format used by OpenShot to save project files.
- .aup is the file format used by Audacity to save project files.

Answers:

i. .MP3 is the format in which video files can be saved. — False (F)

$\because$ .MP3 is an audio file format, not a video file format. Video files are saved in formats such as .MP4, .AVI, .MOV, etc.

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ii. Blender is a video editing software. — True (T)

$\because$ Blender is a free and open-source software that supports 3D modelling, animation, and video editing.

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iii. Audacity is a free and open source digital audio editor. — True (T)

$\because$ Audacity is a widely used free and open-source software for recording and editing digital audio.

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iv. Open Shot is a software used for audio editing. — False (F)

$\because$ OpenShot is a video editing software, not an audio editing software. Audio editing is done using tools like Audacity.

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v. Music files can be imported in Audacity to prepare audio resource. — True (T)

$\because$ Audacity allows users to import existing music/audio files (such as .MP3, .WAV) and edit or mix them to prepare audio resources.