Proj-2012-2013-Audioprothèse DIY 2/SRS - Revision history

Remi.Piotaix: reformulations

2013-03-01T18:38:50Z

reformulations

← Older revision		Revision as of 18:38, 1 March 2013
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	'''Inputs''':		'''Inputs''':
	The ~~alone~~ input of our products is the external sound. It provided by the card's microphone.		The only input of our products is the external sound. It provided by the card's microphone.

	'''Source''':		'''Source''':
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	'''Outputs''':		'''Outputs''':
	The sound audible for the user ~~it's~~ ~~return~~ by the jack plug of the card ~~and an earphone~~.		The sound audible for the user which is returned by the jack plug of the card.

	'''Destination''':		'''Destination''':
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	'''Action''':		'''Action''':
	* Save external sound by microphone		* Save external sound using the microphone
	* ~~Treat~~ the ~~sound~~ ~~in numerics~~ to ~~respond at~~ the ~~user problem~~		* Digitally process the signal according to the configuration
	* ~~Return~~ the sound ~~after~~ ~~treatment by~~ earphone		* Play the sound with the earphone connected to the jack plug

	'''Non functional requirements''':		'''Non functional requirements''':

Remi.Piotaix: /* 2.5 Assumptions and dependencies */

2013-03-01T18:34:17Z

2.5 Assumptions and dependencies

← Older revision		Revision as of 18:34, 1 March 2013
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	==2.5 Assumptions and dependencies==		==2.5 Assumptions and dependencies==
	* The card doesn't work without computer, it hasn't battery		* The card doesn't work without computer, it hasn't battery
	* We do the assumption that the user know ~~her~~ ~~hearin~~ problem		* We do the assumption that the user know his hearing problem

	=3.Specific requirements, covering functional, non-functional and interface requirements=		=3.Specific requirements, covering functional, non-functional and interface requirements=

Remi.Piotaix at 18:33, 1 March 2013

2013-03-01T18:33:55Z

← Older revision		Revision as of 18:33, 1 March 2013
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	==2.4 General constraints==		==2.4 General constraints==
	* The langage using by the stm32f4 card which is low level.		* The langage using by the stm32f4 (c/c++) card which is low level.
	* The sound ~~schould~~ ~~process~~ in real time		* The sound should be processed in real time

	==2.5 Assumptions and dependencies==		==2.5 Assumptions and dependencies==

Remi.Piotaix: reformulation

2013-03-01T18:32:54Z

reformulation

← Older revision		Revision as of 18:32, 1 March 2013
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	==2.3 User characteristics==		==2.3 User characteristics==
	* Each user have different hearing problem and our device ~~schould~~ adapt at the partucular user's problem.		* Each user have different hearing problem and our device should adapt at the partucular user's problem.
	* The device ~~schould~~ ~~programming~~ ~~with~~ ~~the~~ ~~user's~~ ~~specifications~~ ~~before the using by~~ the user. ~~The~~ ~~user~~ ~~schould~~ ~~not~~ ~~touch~~ ~~at the~~ code~~, just active the good for her~~.		* The device should be configurable in order to fulfill the user needs without modifying any line of code.

	==2.4 General constraints==		==2.4 General constraints==

Remi.Piotaix: typo

2013-03-01T18:29:50Z

typo

← Older revision		Revision as of 18:29, 1 March 2013
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	==2.2 Product functions==		==2.2 Product functions==
	* amplifying sound		* amplifying sound
	* changing ~~frequences~~		* changing frequencies

	==2.3 User characteristics==		==2.3 User characteristics==

Remi.Piotaix: Définitions + liens pour PCM et PDM

2013-03-01T18:29:13Z

Définitions + liens pour PCM et PDM

← Older revision		Revision as of 18:29, 1 March 2013
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	* '''Microcontroller''': It's a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals.		* '''Microcontroller''': It's a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals.

			* '''PCM''': Pulse-Code Modulation is a method used to digitally represent sampled analog signals. A PCM stream is a digital representation of an analog signal, in which the magnitude of the analog signal is sampled regularly at uniform intervals, with each sample being quantized to the nearest value within a range of digital steps. [http://en.wikipedia.org/wiki/Pulse-code_modulation (wikipedia)]
	* '''PCM''':

			* '''PDM''': Pulse-Density Modulation is an other method used to digitally represent sampled analog signals. In a PDM signal, specific amplitude values are not encoded into pulses of different size as they would be in PCM. Instead, it is the relative density of the pulses that corresponds to the analog signal's amplitude. [http://en.wikipedia.org/wiki/Pulse-density_modulation (wikipedia)]
	* '''PDM''':

	==1.4 References==		==1.4 References==

Marion.Dalle: /* Requirement X.Y.Z (in Structured Natural Language) */

2013-02-23T13:45:54Z

Requirement X.Y.Z (in Structured Natural Language)

← Older revision		Revision as of 13:45, 23 February 2013
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	'''Function''':		'''Function''':
			Help people with hearing problem at better listen to external sounds.

	'''Description''':		'''Description''':
			The products consists of a program on a stm32F4 card.

	'''Inputs''':		'''Inputs''':
			The alone input of our products is the external sound. It provided by the card's microphone.

	'''Source''':		'''Source''':
			The differents demonstration created by [http://en.wikipedia.org/wiki/STMicroelectronics STMicroelctronics]

	'''Outputs''':		'''Outputs''':
			The sound audible for the user it's return by the jack plug of the card and an earphone.

	'''Destination''':		'''Destination''':
			Everybody with simple hearing problems.

	'''Action''':		'''Action''':
			* Save external sound by microphone
			* Treat the sound in numerics to respond at the user problem
			* Return the sound after treatment by earphone

	'''Non functional requirements''':		'''Non functional requirements''':
			none

	'''Pre-condition''':		'''Pre-condition''':
			* Have a computer
			* Install the tools to developping on the stm32f4 card as show [http://spin.atomicobject.com/2013/01/18/stm32f4-discovery-toolchain-mac-os-x/ here]
			* Know your hearing problem to choose the good correction

	'''Post-condition''':		'''Post-condition''':
			none

	'''Side-effects''':		'''Side-effects''':
			* The earphone can disturb some people
			* A correction doesn't made to measure

	=4. Product evolution=		=4. Product evolution=

Marion.Dalle: /* 1.4 References */

2013-02-20T18:12:44Z

1.4 References

← Older revision		Revision as of 18:12, 20 February 2013
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	*The main page of the project: [[Audioprothese_DIY]]<br\>		*The main page of the project: [[Audioprothese_DIY]]<br\>
	*[http://en.wikipedia.org Wikipedia] for definitions.		*[http://en.wikipedia.org Wikipedia] for definitions.
	*[http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/PF252419], the official page on the STM32F4_DISCOVERY card		*[http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/PF252419 STM32F4], the official page on the STM32F4_DISCOVERY card


	==1.5 Overview of the remainder of the document==		==1.5 Overview of the remainder of the document==

Marion.Dalle: /* 1.5 Overview of the remainder of the document */

2013-02-20T18:11:57Z

1.5 Overview of the remainder of the document

← Older revision		Revision as of 18:11, 20 February 2013
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	==1.5 Overview of the remainder of the document==		==1.5 Overview of the remainder of the document==
			The rest of the SRS examines the specifications of the project in details.
	The rest of the SRS examines the specifications of the project in details. Section two of the SRS presents the general factors that affect the hearing aid and its requirements, such as user characteristics and project constraints. Section three outlines the detailed, specific and functional requirements, performance, system and other related requirements of the project. Supporting information about appendices is provided in Section three.

	=2. General description=		=2. General description=

Marion.Dalle: /* Requirement X.Y.Z (in Structured Natural Language) */

2013-02-20T18:11:18Z

Requirement X.Y.Z (in Structured Natural Language)

← Older revision		Revision as of 18:11, 20 February 2013
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	==Requirement X.Y.Z (in Structured Natural Language)==		==Requirement X.Y.Z (in Structured Natural Language)==

			'''Function''':

			'''Description''':

			'''Inputs''':

			'''Source''':

			'''Outputs''':

			'''Destination''':

			'''Action''':

			'''Non functional requirements''':

			'''Pre-condition''':

			'''Post-condition''':

			'''Side-effects''':

	=4. Product evolution=		=4. Product evolution=