Page 1
In the last chapter, we learnt how to create still images
and enhance them, now it will be interesting to see how
to create audio and video resources.
The use of more than one medium of expression or
communication is called multimedia. Multimedia uses
a combination of text, audio, images, animation, videos
and interactives. This is different from traditional forms
of printed or hand produced material.
Content means something that can be expressed
through some media like speech, writing or any other
form of art.
Students in a class are discussing about the activity
they have performed on purification of water .
Neer: Why is this activity necessary?
Nancy: What is the use of this activity?
Raima joins the school after a long gap. She is surrounded
by her friends, everyone is curious to know the reason
for her long absence from the school.
Neer: Raima, you were always very regular in attending
school, why were you absent for a week?
Raima: I was suffering from diarrhoea and fever.
Nancy: Oh! What did the doctor say?
Interactives
mean a two-way
communication
where the user
interacts with the
content and gets
feedback.
List of waterborne
diseases
• Diarrhoea
• Dysentery
• Typhoid Fever
• Cholera
• Hepatitis A
• Jaundice etc
Creating Audio
Video Communication
Chapter
4
Chapter 4.indd 57 7/16/2020 2:45:40 PM
2024-25
Page 2
In the last chapter, we learnt how to create still images
and enhance them, now it will be interesting to see how
to create audio and video resources.
The use of more than one medium of expression or
communication is called multimedia. Multimedia uses
a combination of text, audio, images, animation, videos
and interactives. This is different from traditional forms
of printed or hand produced material.
Content means something that can be expressed
through some media like speech, writing or any other
form of art.
Students in a class are discussing about the activity
they have performed on purification of water .
Neer: Why is this activity necessary?
Nancy: What is the use of this activity?
Raima joins the school after a long gap. She is surrounded
by her friends, everyone is curious to know the reason
for her long absence from the school.
Neer: Raima, you were always very regular in attending
school, why were you absent for a week?
Raima: I was suffering from diarrhoea and fever.
Nancy: Oh! What did the doctor say?
Interactives
mean a two-way
communication
where the user
interacts with the
content and gets
feedback.
List of waterborne
diseases
• Diarrhoea
• Dysentery
• Typhoid Fever
• Cholera
• Hepatitis A
• Jaundice etc
Creating Audio
Video Communication
Chapter
4
Chapter 4.indd 57 7/16/2020 2:45:40 PM
2024-25
ICT Tex Tbook — Class Ix 58
Raima: The doctor said it was due to drinking
contaminated water. The doctor also told me that
many people are dying because of water pollution and
waterborne diseases every year.
Neer: Oh, it is a very serious issue.
Nancy: You know Raima, yesterday only, we did an
activity on water purification.
Raima: Oh! It is good that you performed such a relevant
activity. Can you explain me what you learnt.
Neer and Nancy explained all the activities they
performed yesterday.
Raima: Had I performed the activity myself, I would
have learnt better by performing the activity.
Neer: Let us do something, so that you may not miss
out the learning.
Nancy: Specially this water purification activity is very
useful for everyone.
Neer: We can create posters to generate awareness on
the importance of water purification.
Raima: Let us make something which can be more
impactful and interesting than a printed material.
Activity 1
Imagine yourself as a part of this activity, what media will
you use to explain this?
Nancy: Can we record an audio?
Raima: It is similar to what you explained to me but I
did not understand it. I think we need to demonstrate
the process.
Neer: So, you want us to do the activity all over again.
Raima: Yes, and this time we will record it. We will also
add posters, text, images, audios and may be some
more materials and create a small video film.
Nancy: Yes, it will help us understand the concept better
and we can also share it with others.
Neer: What all do we need to do for making this video film?
Chapter 4.indd 58 27-Feb-19 4:47:23 PM
2024-25
Page 3
In the last chapter, we learnt how to create still images
and enhance them, now it will be interesting to see how
to create audio and video resources.
The use of more than one medium of expression or
communication is called multimedia. Multimedia uses
a combination of text, audio, images, animation, videos
and interactives. This is different from traditional forms
of printed or hand produced material.
Content means something that can be expressed
through some media like speech, writing or any other
form of art.
Students in a class are discussing about the activity
they have performed on purification of water .
Neer: Why is this activity necessary?
Nancy: What is the use of this activity?
Raima joins the school after a long gap. She is surrounded
by her friends, everyone is curious to know the reason
for her long absence from the school.
Neer: Raima, you were always very regular in attending
school, why were you absent for a week?
Raima: I was suffering from diarrhoea and fever.
Nancy: Oh! What did the doctor say?
Interactives
mean a two-way
communication
where the user
interacts with the
content and gets
feedback.
List of waterborne
diseases
• Diarrhoea
• Dysentery
• Typhoid Fever
• Cholera
• Hepatitis A
• Jaundice etc
Creating Audio
Video Communication
Chapter
4
Chapter 4.indd 57 7/16/2020 2:45:40 PM
2024-25
ICT Tex Tbook — Class Ix 58
Raima: The doctor said it was due to drinking
contaminated water. The doctor also told me that
many people are dying because of water pollution and
waterborne diseases every year.
Neer: Oh, it is a very serious issue.
Nancy: You know Raima, yesterday only, we did an
activity on water purification.
Raima: Oh! It is good that you performed such a relevant
activity. Can you explain me what you learnt.
Neer and Nancy explained all the activities they
performed yesterday.
Raima: Had I performed the activity myself, I would
have learnt better by performing the activity.
Neer: Let us do something, so that you may not miss
out the learning.
Nancy: Specially this water purification activity is very
useful for everyone.
Neer: We can create posters to generate awareness on
the importance of water purification.
Raima: Let us make something which can be more
impactful and interesting than a printed material.
Activity 1
Imagine yourself as a part of this activity, what media will
you use to explain this?
Nancy: Can we record an audio?
Raima: It is similar to what you explained to me but I
did not understand it. I think we need to demonstrate
the process.
Neer: So, you want us to do the activity all over again.
Raima: Yes, and this time we will record it. We will also
add posters, text, images, audios and may be some
more materials and create a small video film.
Nancy: Yes, it will help us understand the concept better
and we can also share it with others.
Neer: What all do we need to do for making this video film?
Chapter 4.indd 58 27-Feb-19 4:47:23 PM
2024-25
Creating a udio -V ideo Communi Cation 59
Raima: We already have a topic, the title of our video
film will be ‘Waterborne diseases and their prevention.’
Activity 2
Think about what content should be included to make a
video film on Water Pollution.
Nancy: So we need to have information on water pollution,
causes of water pollution, effects of water pollution,
waterborne diseases and methods of purification of
contaminated water.
Raima: So first of all, we had to collect all relevant
information to make this video film, we also need to
know sources of information.
Neer: We can use books in the library to collect
information about Water Pollution and its effects and
present it through images and audio narration.
Nancy: We can talk to a doctor to learn more about
waterborne diseases and then present it through text
and audio narration.
Raima: We will request our science teachers to help us
in identifying more activities for water purification. We
will record a video of water purifying techniques.
Nancy: So now we have to decide who will do what.
Raima: I can go to the doctor and collect more information
on waterborne diseases.
Neer and Nancy: Raima can learn more water purifying
techniques form the science teacher then we will record
a video on the techniques of purifying water.
Nancy: I can search information from the library.
The students have collected all the information in the
form of text and images. They have also recorded a video
showing the techniques of water purification.
Neer: Now we have to write the audio script based on
the information we have collected from various sources.
Raima: But how are we going to record an audio?
Neer: Let's record it in the evening through my mom's smartphone.
Chapter 4.indd 59 27-Feb-19 4:47:23 PM
2024-25
Page 4
In the last chapter, we learnt how to create still images
and enhance them, now it will be interesting to see how
to create audio and video resources.
The use of more than one medium of expression or
communication is called multimedia. Multimedia uses
a combination of text, audio, images, animation, videos
and interactives. This is different from traditional forms
of printed or hand produced material.
Content means something that can be expressed
through some media like speech, writing or any other
form of art.
Students in a class are discussing about the activity
they have performed on purification of water .
Neer: Why is this activity necessary?
Nancy: What is the use of this activity?
Raima joins the school after a long gap. She is surrounded
by her friends, everyone is curious to know the reason
for her long absence from the school.
Neer: Raima, you were always very regular in attending
school, why were you absent for a week?
Raima: I was suffering from diarrhoea and fever.
Nancy: Oh! What did the doctor say?
Interactives
mean a two-way
communication
where the user
interacts with the
content and gets
feedback.
List of waterborne
diseases
• Diarrhoea
• Dysentery
• Typhoid Fever
• Cholera
• Hepatitis A
• Jaundice etc
Creating Audio
Video Communication
Chapter
4
Chapter 4.indd 57 7/16/2020 2:45:40 PM
2024-25
ICT Tex Tbook — Class Ix 58
Raima: The doctor said it was due to drinking
contaminated water. The doctor also told me that
many people are dying because of water pollution and
waterborne diseases every year.
Neer: Oh, it is a very serious issue.
Nancy: You know Raima, yesterday only, we did an
activity on water purification.
Raima: Oh! It is good that you performed such a relevant
activity. Can you explain me what you learnt.
Neer and Nancy explained all the activities they
performed yesterday.
Raima: Had I performed the activity myself, I would
have learnt better by performing the activity.
Neer: Let us do something, so that you may not miss
out the learning.
Nancy: Specially this water purification activity is very
useful for everyone.
Neer: We can create posters to generate awareness on
the importance of water purification.
Raima: Let us make something which can be more
impactful and interesting than a printed material.
Activity 1
Imagine yourself as a part of this activity, what media will
you use to explain this?
Nancy: Can we record an audio?
Raima: It is similar to what you explained to me but I
did not understand it. I think we need to demonstrate
the process.
Neer: So, you want us to do the activity all over again.
Raima: Yes, and this time we will record it. We will also
add posters, text, images, audios and may be some
more materials and create a small video film.
Nancy: Yes, it will help us understand the concept better
and we can also share it with others.
Neer: What all do we need to do for making this video film?
Chapter 4.indd 58 27-Feb-19 4:47:23 PM
2024-25
Creating a udio -V ideo Communi Cation 59
Raima: We already have a topic, the title of our video
film will be ‘Waterborne diseases and their prevention.’
Activity 2
Think about what content should be included to make a
video film on Water Pollution.
Nancy: So we need to have information on water pollution,
causes of water pollution, effects of water pollution,
waterborne diseases and methods of purification of
contaminated water.
Raima: So first of all, we had to collect all relevant
information to make this video film, we also need to
know sources of information.
Neer: We can use books in the library to collect
information about Water Pollution and its effects and
present it through images and audio narration.
Nancy: We can talk to a doctor to learn more about
waterborne diseases and then present it through text
and audio narration.
Raima: We will request our science teachers to help us
in identifying more activities for water purification. We
will record a video of water purifying techniques.
Nancy: So now we have to decide who will do what.
Raima: I can go to the doctor and collect more information
on waterborne diseases.
Neer and Nancy: Raima can learn more water purifying
techniques form the science teacher then we will record
a video on the techniques of purifying water.
Nancy: I can search information from the library.
The students have collected all the information in the
form of text and images. They have also recorded a video
showing the techniques of water purification.
Neer: Now we have to write the audio script based on
the information we have collected from various sources.
Raima: But how are we going to record an audio?
Neer: Let's record it in the evening through my mom's smartphone.
Chapter 4.indd 59 27-Feb-19 4:47:23 PM
2024-25
ICT Tex Tbook — Class Ix 60
In the evening, they all gathered at Neer's house to record
the narration. But while playing back they noticed some
disturbance in the audio.
Nancy: How to remove this disturbance from the audio?
Raima: We can use software to edit the audio narration.
So, let’s first get familiar with the Audacity interface.
(Refer Fig. 4.1).
Fig. 4.1 : Audacity Interface
Let’s begin with Audacity and Record Narration.
1. Go to file and click “New”. A new window will appear
(Refer Fig. 4.2).
Raima: Let us start creating our audio resource.
Fig. 4.2 : Getting started
How to record an
audio?
There are two types
of recording devices:
analog and digital.
It has its own merits
and demerits and
they may be used as
per need of the task.
List of recording
devices
• Mini Disc
Recorder
• DAT Recorder
• Desktop and
headphone
• Laptop Audio
Interface
• Smartphone
List of audio tools
• Audacity
• Mixxx
• Ardour
Audacity
• Audacity is a free
open source digital
audio editor to
record computer
software
application,
available for
Windows, macOS/
OS X, Linux and
other operating
systems.
• Interestingly, you
do not need sound
mixer or any other
Chapter 4.indd 60 27-Feb-19 4:47:24 PM
2024-25
Page 5
In the last chapter, we learnt how to create still images
and enhance them, now it will be interesting to see how
to create audio and video resources.
The use of more than one medium of expression or
communication is called multimedia. Multimedia uses
a combination of text, audio, images, animation, videos
and interactives. This is different from traditional forms
of printed or hand produced material.
Content means something that can be expressed
through some media like speech, writing or any other
form of art.
Students in a class are discussing about the activity
they have performed on purification of water .
Neer: Why is this activity necessary?
Nancy: What is the use of this activity?
Raima joins the school after a long gap. She is surrounded
by her friends, everyone is curious to know the reason
for her long absence from the school.
Neer: Raima, you were always very regular in attending
school, why were you absent for a week?
Raima: I was suffering from diarrhoea and fever.
Nancy: Oh! What did the doctor say?
Interactives
mean a two-way
communication
where the user
interacts with the
content and gets
feedback.
List of waterborne
diseases
• Diarrhoea
• Dysentery
• Typhoid Fever
• Cholera
• Hepatitis A
• Jaundice etc
Creating Audio
Video Communication
Chapter
4
Chapter 4.indd 57 7/16/2020 2:45:40 PM
2024-25
ICT Tex Tbook — Class Ix 58
Raima: The doctor said it was due to drinking
contaminated water. The doctor also told me that
many people are dying because of water pollution and
waterborne diseases every year.
Neer: Oh, it is a very serious issue.
Nancy: You know Raima, yesterday only, we did an
activity on water purification.
Raima: Oh! It is good that you performed such a relevant
activity. Can you explain me what you learnt.
Neer and Nancy explained all the activities they
performed yesterday.
Raima: Had I performed the activity myself, I would
have learnt better by performing the activity.
Neer: Let us do something, so that you may not miss
out the learning.
Nancy: Specially this water purification activity is very
useful for everyone.
Neer: We can create posters to generate awareness on
the importance of water purification.
Raima: Let us make something which can be more
impactful and interesting than a printed material.
Activity 1
Imagine yourself as a part of this activity, what media will
you use to explain this?
Nancy: Can we record an audio?
Raima: It is similar to what you explained to me but I
did not understand it. I think we need to demonstrate
the process.
Neer: So, you want us to do the activity all over again.
Raima: Yes, and this time we will record it. We will also
add posters, text, images, audios and may be some
more materials and create a small video film.
Nancy: Yes, it will help us understand the concept better
and we can also share it with others.
Neer: What all do we need to do for making this video film?
Chapter 4.indd 58 27-Feb-19 4:47:23 PM
2024-25
Creating a udio -V ideo Communi Cation 59
Raima: We already have a topic, the title of our video
film will be ‘Waterborne diseases and their prevention.’
Activity 2
Think about what content should be included to make a
video film on Water Pollution.
Nancy: So we need to have information on water pollution,
causes of water pollution, effects of water pollution,
waterborne diseases and methods of purification of
contaminated water.
Raima: So first of all, we had to collect all relevant
information to make this video film, we also need to
know sources of information.
Neer: We can use books in the library to collect
information about Water Pollution and its effects and
present it through images and audio narration.
Nancy: We can talk to a doctor to learn more about
waterborne diseases and then present it through text
and audio narration.
Raima: We will request our science teachers to help us
in identifying more activities for water purification. We
will record a video of water purifying techniques.
Nancy: So now we have to decide who will do what.
Raima: I can go to the doctor and collect more information
on waterborne diseases.
Neer and Nancy: Raima can learn more water purifying
techniques form the science teacher then we will record
a video on the techniques of purifying water.
Nancy: I can search information from the library.
The students have collected all the information in the
form of text and images. They have also recorded a video
showing the techniques of water purification.
Neer: Now we have to write the audio script based on
the information we have collected from various sources.
Raima: But how are we going to record an audio?
Neer: Let's record it in the evening through my mom's smartphone.
Chapter 4.indd 59 27-Feb-19 4:47:23 PM
2024-25
ICT Tex Tbook — Class Ix 60
In the evening, they all gathered at Neer's house to record
the narration. But while playing back they noticed some
disturbance in the audio.
Nancy: How to remove this disturbance from the audio?
Raima: We can use software to edit the audio narration.
So, let’s first get familiar with the Audacity interface.
(Refer Fig. 4.1).
Fig. 4.1 : Audacity Interface
Let’s begin with Audacity and Record Narration.
1. Go to file and click “New”. A new window will appear
(Refer Fig. 4.2).
Raima: Let us start creating our audio resource.
Fig. 4.2 : Getting started
How to record an
audio?
There are two types
of recording devices:
analog and digital.
It has its own merits
and demerits and
they may be used as
per need of the task.
List of recording
devices
• Mini Disc
Recorder
• DAT Recorder
• Desktop and
headphone
• Laptop Audio
Interface
• Smartphone
List of audio tools
• Audacity
• Mixxx
• Ardour
Audacity
• Audacity is a free
open source digital
audio editor to
record computer
software
application,
available for
Windows, macOS/
OS X, Linux and
other operating
systems.
• Interestingly, you
do not need sound
mixer or any other
Chapter 4.indd 60 27-Feb-19 4:47:24 PM
2024-25
Creating a udio -V ideo Communi Cation 61
sophisticated
device to use it.
Using Audacity you
can
1. record by default
microphone
or by external
microphone.
2. edit, import and
export audio files.
3. mix tracks by
using envelop.
4. create effects and
even increase
amplitude.
5. use multiple
tracks.
Raima: Let us add a new track (Refer Fig. 4.3).
Fig. 4.3 : Adding a new track
A new track will appear in which you can record your
voice or sound using either default microphone or the
external microphone. Ensure that proper silence is
maintained while recording. To start the recording click
on the Red recording button (Fig. 4.4) and speak. To
finish recording, press the Stop button or the Space Bar
on your computer. You can insert more tracks in a
similar fashion.
Fig 4.4 : Recording an audio
Chapter 4.indd 61 27-Feb-19 4:47:25 PM
2024-25
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