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• What is the best way to measure the sound present in the bedroom?
• What is the best way to measure the sound present in the bedroom?
1) High-frequency recording of the sleep
1) High-frequency recording of the sleep
measuring the pitch  
measuring the pitch  
2) Low-frequency recording of the sleep
2) Low-frequency recording of the sleep
measuring the decibel level
measuring the decibel level
Line 18: Line 20:


• Measuring
• Measuring
1) Measure the sounds of multiple persons their bedroom throughout the night.
1) Measure the sounds of multiple persons their bedroom throughout the night.
2) Measuring multiple nights.
2) Measuring multiple nights.
3 ) Measuring on a high-frequency sound level as well as on a low-frequency sound level.
3 ) Measuring on a high-frequency sound level as well as on a low-frequency sound level.


• Processing the measuring results
• Processing the measuring results
1) Analyzing which method brought us the best results.
1) Analyzing which method brought us the best results.
2) Determining if it is possible to use the data that we have for future work.
2) Determining if it is possible to use the data that we have for future work.


'''What are we going to use for the measuring'''
'''What are we going to use for the measuring'''
For the measuring of the sound levels, an Arduino is used. This Arduino will be connected to a sound detector. We chose an [https://www.arduino.cc/en/Main/ArduinoBoardMega Arduino Mega] with a [https://www.sparkfun.com/products/12642 SparkFun Sound Detector]. The results will be stored to be reviewed afterwards.
For the measuring of the sound levels, an Arduino is used. This Arduino will be connected to a sound detector. We chose an [https://www.arduino.cc/en/Main/ArduinoBoardMega Arduino Mega] with a [https://www.sparkfun.com/products/12642 SparkFun Sound Detector]. The results will be stored to be reviewed afterwards.


'''When and where do we do the measuring'''
'''When and where do we do the measuring'''
The testing will be done as soon as all the components arrived. The plan is to do as many tests as possible in about one week. Two persons will do the testing at their own home. This way there are twice as much testing results in the same time period.  
The testing will be done as soon as all the components arrived. The plan is to do as many tests as possible in about one week. Two persons will do the testing at their own home. This way there are twice as much testing results in the same time period.  


''The sound detector was recommended to us by Ruud van den Bogaert. It is more that suited for our needs, for it has both analogue frequency output and volume level or ‘envelope’ output. It also has a digital output that’s high when the volume rises above a certain threshold, which we won’t use.''
''The sound detector was recommended to us by Ruud van den Bogaert. It is more that suited for our needs, for it has both analogue frequency output and volume level or ‘envelope’ output. It also has a digital output that’s high when the volume rises above a certain threshold, which we won’t use.''

Revision as of 21:42, 6 March 2016

Measurement plan

Research question

Is it possible to know in what sleep phase a person is by analyzing the sounds that he/she makes while breathing?

Sub-questions

• What is the best way to measure the sound present in the bedroom?

1) High-frequency recording of the sleep measuring the pitch

2) Low-frequency recording of the sleep measuring the decibel level

• What conclusions can be drawn from the results we encounter?

What has to be done

• Measuring

1) Measure the sounds of multiple persons their bedroom throughout the night.

2) Measuring multiple nights.

3 ) Measuring on a high-frequency sound level as well as on a low-frequency sound level.

• Processing the measuring results

1) Analyzing which method brought us the best results.

2) Determining if it is possible to use the data that we have for future work.

What are we going to use for the measuring

For the measuring of the sound levels, an Arduino is used. This Arduino will be connected to a sound detector. We chose an Arduino Mega with a SparkFun Sound Detector. The results will be stored to be reviewed afterwards.

When and where do we do the measuring

The testing will be done as soon as all the components arrived. The plan is to do as many tests as possible in about one week. Two persons will do the testing at their own home. This way there are twice as much testing results in the same time period.


The sound detector was recommended to us by Ruud van den Bogaert. It is more that suited for our needs, for it has both analogue frequency output and volume level or ‘envelope’ output. It also has a digital output that’s high when the volume rises above a certain threshold, which we won’t use.