Pulse Echo Sonar Meter
Pulse Echo Sonar Meter
Pulse Echo Sonar Meter.
Reviews
13.76%
3.41%
3.41%
16.39%
63.02%
★
★★
★★★
★★★★
★★★★★
141 rates
35 rates
35 rates
168 rates
646 rates
Comments
A Google user
★★★★★
"Love all your apps :)"
Version: 1.0
"Love all your apps :)"
Version: 1.0
A Google user
★★★★
"Research has just began ☺"
Version: 1.01
"Research has just began ☺"
Version: 1.01
A Google user
★
"A lot of screen space wasted for no good reason and it is too inaccurate and too hard to set up to be useful for any practical purpose."
Version: 1.01
"A lot of screen space wasted for no good reason and it is too inaccurate and too hard to set up to be useful for any practical purpose."
Version: 1.01
A Google user
★★★★★
"Lethal architecture design engineered."
Version: 1.01
"Lethal architecture design engineered."
Version: 1.01
A Google user
★
"Doesn`t seem user friendly, ive set speed of sound, single external pulse, clear... Sample is recorded, but no echo speed calculated betwe the blue and green curser.."
Version: 1.01
"Doesn`t seem user friendly, ive set speed of sound, single external pulse, clear... Sample is recorded, but no echo speed calculated betwe the blue and green curser.."
Version: 1.01
A Google user
★★★★★
"First this app works and it is very useful as well.second it is very easy to use.Thank you for making this great app."
"First this app works and it is very useful as well.second it is very easy to use.Thank you for making this great app."
A Google user
★★★★★
"By far the best echo sonar meter on the app store, only downfall please get rid of the green frame around the edges of the interface,"
"By far the best echo sonar meter on the app store, only downfall please get rid of the green frame around the edges of the interface,"
Jamesf Bartee
★★★★★
"Used to fight TIPS criminals TIPS-Targeted Individual Perpetrators"
Version: 1.01
"Used to fight TIPS criminals TIPS-Targeted Individual Perpetrators"
Version: 1.01
A Google user
★★★★★
"Does what its supposed to. Source must be EXT to stop interference, I think."
Version: 1.01
"Does what its supposed to. Source must be EXT to stop interference, I think."
Version: 1.01
William Fairfax Mason Prescott III
★★★★★
"Awesome tool for experiments and measurments! Thank you developers!"
"Awesome tool for experiments and measurments! Thank you developers!"
A Google user
★★★
"Neat options, but you really need a band pass filter to get only your signal and filter out noise."
Version: 1.0
"Neat options, but you really need a band pass filter to get only your signal and filter out noise."
Version: 1.0
A Google user
★★★★★
"I`m a software person so I am just starting to learn this stuff. Gonna just listen to that electrical tech guy and believe it is a proper and awesome app. Mainly got it for the mapping function. Had an app a bazillion years ago on iPhone 3 that helped me map out the stairs in the dark. But I don`t know how to tweak these settings or how fast to move it...help?"
Version: 1.01
"I`m a software person so I am just starting to learn this stuff. Gonna just listen to that electrical tech guy and believe it is a proper and awesome app. Mainly got it for the mapping function. Had an app a bazillion years ago on iPhone 3 that helped me map out the stairs in the dark. But I don`t know how to tweak these settings or how fast to move it...help?"
Version: 1.01
A Google user
★★★★★
"Interesting. Still playing with settings and learning functions. So far I`m impressed."
Version: 1.01
"Interesting. Still playing with settings and learning functions. So far I`m impressed."
Version: 1.01
A Google user
★★★★★
"... for ALL keuwlsoft tools apk."
"... for ALL keuwlsoft tools apk."
A Google user
★★★★★
"Works out of the box right away! Great job volks!"
Version: 1.01
"Works out of the box right away! Great job volks!"
Version: 1.01
A Google user
★
"Worst app ever installed All the positive reviews are made by the developers"
"Worst app ever installed All the positive reviews are made by the developers"
A Google user
★
"Never indicated any range on any surface at any distance."
Version: 1.01
"Never indicated any range on any surface at any distance."
Version: 1.01
A Google user
★
"Need improvementss"
Version: 1.01
"Need improvementss"
Version: 1.01
A Google user
★★★★★
"Cool. It takes some experimentation to figure it out"
Version: 1.01
"Cool. It takes some experimentation to figure it out"
Version: 1.01
A Google user
★★★★★
"Cool. Read guide on their web page before giving low rating. Limitations are described there."
Version: 1.01
"Cool. Read guide on their web page before giving low rating. Limitations are described there."
Version: 1.01
com.keuwl.pulseechosonar
Installs: 100,000+
(349,106 at
2024-05-20 03:15:08)
Version: VARY
Category: Music & Audio
Pegi : Everyone
Publish Date : Feb 25, 2015
Update Date : 2024-02-06
Android Version : Varies with device
Ad Supported : Yes
Version: VARY
Category: Music & Audio
Pegi : Everyone
Publish Date : Feb 25, 2015
Update Date : 2024-02-06
Android Version : Varies with device
Ad Supported : Yes
Available on
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DESCRIPTION
Uses the audio autput to generate sound pulses and then detects the echo on the microphone. The echo signal can be visulised in a map, Fourier transformed or just as the time-series waveform. Great for investigating/demonstrating acoustics principles.
RECORD_AUDIO Permission to use microphone to detect the echo. WRITE_EXTERNAL_STORAGE Permission is so that data can be saved.
Features/Specifications:
• Sampling frequency 44.1 kHz.
• Sampling duration 0.001 s to 5 s.
• Single / Continuous modes.
• Save Data in CSV files.
• Pulse Generation:
• Single/Train/Chirp.
• Square/Sine waveforms.
• Tukey/Hanning Envelopes.
• Pulse frequency 20 Hz to 22.05 kHz.
• Pulse duration up to 1 s.
• MAP – Visualise the echo. Colour or Black and White. Pixel value from RMS or absolute value. New line for each echo trace. Move device whilst pulse-echoing to generate a map.
• Fast Fourier Transform (FFT) of 8192 data points to determine frequency content between echo detect lines.
• Peak frequency detection
• FFT Averaging
For Indication Only. Use Ear Protection if required. Due to the limits of the typical microphone dB range on most devices, distant echo signal are likely to be too weak to detect clearly unless extra amplification or a strong echo is present.
For fun/educational/research use. This is not ultrasound and NOT suitable for any medical imaging. This app can create annoying loud sounds, so use ear protection if required.
RECORD_AUDIO Permission to use microphone to detect the echo. WRITE_EXTERNAL_STORAGE Permission is so that data can be saved.
Features/Specifications:
• Sampling frequency 44.1 kHz.
• Sampling duration 0.001 s to 5 s.
• Single / Continuous modes.
• Save Data in CSV files.
• Pulse Generation:
• Single/Train/Chirp.
• Square/Sine waveforms.
• Tukey/Hanning Envelopes.
• Pulse frequency 20 Hz to 22.05 kHz.
• Pulse duration up to 1 s.
• MAP – Visualise the echo. Colour or Black and White. Pixel value from RMS or absolute value. New line for each echo trace. Move device whilst pulse-echoing to generate a map.
• Fast Fourier Transform (FFT) of 8192 data points to determine frequency content between echo detect lines.
• Peak frequency detection
• FFT Averaging
For Indication Only. Use Ear Protection if required. Due to the limits of the typical microphone dB range on most devices, distant echo signal are likely to be too weak to detect clearly unless extra amplification or a strong echo is present.
For fun/educational/research use. This is not ultrasound and NOT suitable for any medical imaging. This app can create annoying loud sounds, so use ear protection if required.
RECENT CHANGES
v1.06 Updated to use newer code methods to better target and run reliably on devices in 2024
DATA SAFETY AND SECURITY
This app has access to
Microphone
· record audioOther
· full network access· view network connections
· prevent device from sleeping
Photos/Media/Files
· read the contents of your USB storage· modify or delete the contents of your USB storage
Storage
· modify or delete the contents of your USB storage· read the contents of your USB storage
Security Practices
Data is encrypted in transit
· Your data is transferred over a secure connection
Data can’t be deleted
· The developer doesn’t provide a way for you to request that your data be deleted
Data this app may collect
App activity
App interactions (Optional) : Advertising or marketingApp info and performance
Crash logs (Optional) : AnalyticsDiagnostics (Optional) : Analytics
Device or other IDs
Device or other IDs (Optional) : Advertising or marketing
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