NIT6130: Ethics, Integrity & Safety in Speech Recognition Research

This essay provides a comprehensive overview of ethical considerations in speech recognition research. It begins by defining speech recognition and its applications, then discusses the pros and cons of this technology, including spelling accuracy, speed, accessibility for people with disabilities, limited vocabularies, potential delays, and the need for training. The core of the essay identifies ethical issues, integrity concerns, and safety risks associated with speech recognition, such as accidental recording of third parties, privacy violations, and potential misuse of data. A response plan is outlined to address these issues, emphasizing the importance of respecting privacy, adhering to surveillance laws, and ensuring data security. The essay also includes a discussion of the Alpha System architecture for speech recognition, highlighting its features and functionalities. The document is contributed by a student and available on Desklib, a platform offering study tools, past papers and solved assignments.

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SPEECH RECOGNITION
A Research Paper on Ethics By
Student’s Name
Name of the Professor
Institutional Affiliation
City/State
Year/Month/Day

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Table of Content
1. Introduction
2. Research Background
3. Pros and Cons of research4
3.1. Spelling4
3.2. Speed4
3.3. People with Disabilities5
3.4. Limited Vocabularies ……………………………………………………………………..5
3.5. Delays……………………………………………………………………………..………5
3.6. Training ………………………………………………………………………………...…6
4. Ethics Issues, Integrity and Safety Issues, and risks6
4.1. Ethical Issues6
4.2. Integrity and Safety7
5. Response plan to the issues and risks7
5.1.Response to Ethics8
5.2. System Architecture8
6. Conclusion10
7. References12

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INTRODUCTION
This report paper is about issues and ethics issues when conducting research the field of
speech recognition. The main objective of this report is to develop the deep understanding of
research ethics in the field of speech recognition. There is need of collecting and analyzing
information related to the ethics in this field and have a comprehensive understanding of ethics
policy used in the residential nation, state, and institute. Some of the sub-topics discussed in this
research include research background, pros and cons of the research, ethics issues, integrity, and
safety risks and issues, and response plan to issues and risks.
Research Background
The chosen research is about speech recognition. Speech recognition can be defined as an
inter-disciplinary sub-field of computational linguistics that develops technologies and
methodologies which enhances the translation and recognition of a language spoken into text by
computers. This research is based on the ability or a program or machine to identify phrases and
words in the spoken language and then converting them to format that is readable by machines.
The research incorporates research and knowledge in the electrical engineering, computer
science, and linguistics (APAIS, 2007).
The speech recognition functions by the use of algorithms through language and acoustic
modelling. Language modelling matches sound with the sequence of words that sound similar
while acoustic modelling denotes the relationship between linguistic units of audio and speech
signals. The expected outcome of this research on speech recognition is to develop a system that
can be applied in areas such as aircraft which is normally known as direct voice input,

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preparation of structured documents such as radiology report, simple data entry such as entering
a credit card number, call routing and voice user interfaces such as voice dialing (Acton, 2012).
This research requires an evaluation of issues and ethics issues while conducting research
in the field of speech recognition. Ethics is used in research to evaluate the behaviour of the
researcher and the results of the research. There are numerous safety issues and risks associated
with the research on speech recognition ranging from the researchers and also the final users
(Ayuso, 2012).
Pros and Cons of Research
There are numerous advantages and disadvantages associated with the research. This
section discusses the pros and cons that are likely to be faced in the voice recognition research.
The following are some of the pros in the speech recognition:
Spelling
One of the well-known advantages of voice recognition is that the correct spelling of the spoken
word will always be captured even if the speaker did not actually know the spellings of the work.
For those individuals who struggle with the correct spelling, they can easily dictate to the voice
recognition system which is expected to automatically spell out the word correctly (DeMori,
2012).
Speed
The voice recognition enables a greater speed in the production of typed work hence many
people are enamoured with the concept of voice recognition. Instead of having to learn on how to

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type a certain number of correct words for a given duration or use effectively the keyboard, the
user may simply speak and the spoken words will be recognized (Haton, 2012).
Disabilities
It has been argued that the major reason for the development of voice recognition is due to the
fact that it enables individuals with disabilities to operate and type computers. For example, a
person who cannot write with his hands or operate a computer for any reason can simply dictate
to the computer on what he wishes to write and the system will respond accordingly (Haton,
2012).
Some of the cons associated with voice recognition are explained below:
Limited Vocabulary
Voice recognition recognizes ordinary vocabularies in the language of English. Despite this
system being effective in writing most of the time, it is normally not enough. In numerous cases,
fictional or unusual names are not part of the vocabulary of this system. The system can also fail
to correctly spell some traditional names. For example, the system may fail to differentiate
whether it hears “Jaymz” or “James”. Slang can also be a serious issue when using the voice
recognition. There will always be mistakes in spelling which may force the user to go back and
fix the mistakes (Israel, 2014).
Delays
The voice recognition is always faced with occasional mishaps despite the system having been
designed to facilitate work. There is usually some duration that the voice recognition will take
before registering the vocabularies that have been said. This may be frustrating for those users

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who are used to only being hampered by the frequency of their fingers on the keyboard and not
wishing that their flow of thoughts are interrupted (Jones, 2014).
Training
There is need of first training the voice recognition to recognize the voices of users. It takes some
duration for the system to learn the voice of the users as well as their way of speaking. There is
need of first investing a lot of effort and patience into the voice recognition. Even after the
system has undergone training, it is still a subject to making mistakes like failing to recognize
names that are unusual or struggling to find the difference between words that are sounding
similar (Schwartz, 2013).
Ethics Issues, Integrity and Safety, and risks
Ethical Issues
The experience in the research on speech recognition is faced with numerous ethical and
legal issues related to the development of this system. There have been questions of legal issues
of accidental recording of unrelated individuals in the background of the person of interest. This
has been considered to be entirely possible during the process of recording. There are no given
guidelines for groups of individuals taking part in this kind of research. This may make it
difficult for the researchers in the field of speech recognition to know the exact number that is
needed to carry out this research (Yakovenko, 2015).
Integrity and Safety
It is also common for researchers to record and use audio and video in public places and
share the recordings online. There is need of exploring the legal areas related to voices

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recordings since there are some places that are considered to be private and such recordings are
illegal to use in these regions. It is common to see signs indicating that any form of recording is
illegal in such places such as government offices or private places like hospitals where patient
privacy is important. These legal areas are published in the latest edition of Journal of Law and
Medicine in Australia (Schwartz, 2013).
Risks
It has been noted that the potential liabilities during the research in voice recognition
could arise from numerous surveillance and listening device laws of Australia since voice
recognition could record the private conversation without the approval of the third parties. The
text converted is then subjected to further language processing, however, it is not clear if those
words are listened to or heard as understood within the perspective of the current legal
definitions of a personal conversation. There is need of the researcher in the field of speech
recognition to be well conversant with the laws of listening and surveillance of Australia so that
they are not found in the wrong side of the law (Porter, 2012).
Speech recognition combined with other technologies such as geo-location and data
retention are possibly privacy-invasive and result in problems related to human rights and
freedom and also right for privacy. There are also numerous risks associated with speech
recognition such as stored data can be stolen, the data could be misused for other reasons such as
for criminal investigation, the process may reveal information concerning the race, ethnic, or
health of someone, and also the process of identification is subjected to mistakes (Patrick, 2009).
Response plan to the issues and risks

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Response to Ethics
There is need of the researcher to respect the privacy of individuals who may be part of the
third party during the process of recording. This can be ensured through carrying out the
recording process in a private place where there is no background noise which may be captured
by the system. The researcher should also abide by the surveillance and listening device laws of
Australia which restrict the use of listening devices in some regions which are considered to be
private. The number of the researchers that are required to take part in this research are not
legally restricted hence the researcher may confidently work with any number that suits this
research (Paliwal, 2012).
It is unethical to use the speech recognition system in public places hence the researcher
should restrict the use of this system in the only private place away from background noise that
may accidentally be recorded. The serious integrity issue that may really affect the integrity of
the research and also the system is when the system accidentally records some private
information from the third party and then the researcher goes ahead to share the recordings
online. The research should not violate the human rights and freedom and also right for privacy
to whoever may be using the system or even to those in the background. It is the work of the
researcher to ensure that the rights and freedom of the users and third parties are adhered to
(Murray, 2017).
System Architecture

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Figure 1: Alpha System Architecture (Morgan, 2011)
The Alpha System is a 64-bit reduced instruction set computing architecture for instruction
set developed by Digital Equipment Corporation. The Alpha system is supported by the
Operating System known as Tru64 UNIX, currently known as OpenVMS. This architecture was
intended to be a high-performance design that is capable of supporting a high performance by the
use of features such as clock rate. The accuracies in recognition have been steadily improved
through the current system so as to ensure integrity issues associated with inaccurate recordings.
The Alpha system is a continuous speech recognition of 71-96% accuracies, large vocabulary,
and speaker independent due to the numerous features that make it more advanced than other
systems (Morgan, 2011).
The conversion of the spoken word into the representation of text automatically needs
numerous states as shown in the figure above. The first step is the conversation of acoustical
vibration into the analogue signal by the use of a microphone or a cellphone. This analogue
signal is then filtered to remove the components of the high frequency of the signal which lie

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outside the frequency range that human ear can possibly hear. The signal that is filtered is then
digitized by the use of quantization and sampling. The waveform that is digitized is then blocked
into frames which are then compressed by the use of one of the numerous encoding schemes
(Jones, 2014).
In this phase, the preprocessing is complete and the technique of recognition can be
applied to this audio input representation. Speech recognition is known as the process of
converting words to sentences, phones to words, and frames to phone. A phone may be
considered to be approximately equal to a single consonant or vowel sound. A normal 15-word
sentence comprises of about 65 phones. Numerous frames form a phone. Alpha system
architecture recognizes a sentence by performing a beam search through a prior network state for
a phone sequence that best matches the sequence of frame input (Ayuso, 2012).
Alpha system architecture libraries employ discrete Groovy Transformer Sandbox which is
currently predominant method of speech recognition. They are characterized by a prior set of
transition probabilities between the words and a set of states. The beam search iteratively creates
a tree of candidate paths through the Groovy Transformer Sandbox (McAuliffe, 2014).
Conclusion
Speech recognition can be defined as the process of converting words to sentences, phones
to words, and frames to phone. This paper is about issues and ethical issues when conducting
research the field of speech recognition. Some of the advantages of speech recognition discussed
in this paper include correct spelling, greater speed, and also can be used with people with
disabilities. Some of the advantages of speech recognition discussed in this paper include it
requires training, there are many delays, and also limit in vocabularies. It has been noted that the

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potential liabilities during the research in voice recognition could arise from numerous
surveillance and listening device laws of Australia since voice recognition could record the
private conversation without the approval of the third parties.

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Bibliography
Acton, A., 2012. Issues in Accounting, Administration, and Corporate Governance. Australia: Scholarly
Editions.
APAIS, 2007. Australian public affairs information service. Australia: National Library Australia.
Ayuso, R., 2012. Speech Recognition and Coding. Colorado: Springer Science & Business Media.
DeMori, R., 2012. New Systems and Architectures for Automatic Speech Recognition and Synthesis.
Toledo: Springer Science & Business Media.
Hatton, J., 2012. Robustness in Automatic Speech Recognition. California: Springer Science & Business
Media.
Israel, M., 2014. Research Ethics and Integrity for Social Scientists. London: SAGE.
Jones, B. H., Chin, A. & Aiken, P., 2014. Risky business: Students and smartphones. TechTrends, 58(6), pp.
73-83.
Laface, P., 2012. Speech Recognition and Understanding. Melbourne: Springer Science & Business
Media,
Lanphier, E., Urnov, F., 2015. Don't edit the human germline. Nature, 519(7544), p. 410.
McAuliffe, D., 2014. Interprofessional Ethics. Sydney: Cambridge University Press.
Morgan, N., 2011. Speech and Audio Signal Processing: Processing and Perception of Speech and Music.
New York: John Wiley & Sons.
Murray, E., 2017. Nursing Leadership and Management: For Patient Safety and Quality Care. Austrailia:
F.A. Davis.
Paliwal, K., 2012. Automatic Speech and Speaker Recognition. Berlin: Springer Science & Business Media.
Patrick, W., 2009. Advances In Pattern Recognition Systems Using Neural Network Technologies. Perth:
World Scientific.
Porter, L., 2012. Integrity Management in Australia. Australia: CRC Press.
Schwartz, M., 2013. Ethics, Values and Civil Society. Australia: Emerald Group Publishing.
Yakovenko, I., 2015. The efficacy of motivational interviewing for disordered gambling: systematic
review and meta-analysis. Addictive Behaviors, Volume 43, pp. 72-82.

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