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Version
2.31
Size
2.39 Mb
Updated
9 months ago
Released
21 Jun 2013
Screenshots
Description
Three tools (oscilloscope, FFT analyzer (spectrum analyzer), signal generator) are included in the e-scope 3-in-1.
Please take a look at this video.
Basic functions:
http://youtu.be/WPm4Dbz0WAo
Automatic measurement add-on:
http://youtu.be/K6_stq_t2zQ
It can observe the frequency characteristics of audio devices using an FFT analyzer and a signal generator.
Observation of frequency characteristics in real time is possible by using the FFT synchronization sweep mode.
inputs are acquired via the built-in microphone or headset connector.
-Oscilloscope
The oscilloscope has three modes.
* Normal mode: It is suited to observe music waveforms.
* Trigger mode: This mode is suitable for repeated waveforms such as sine wave. You can observe waveforms in stationary condition.
* Single mode: This mode is suitable for observing one-time waveform such as impact sound.
You can change the sensitivity and time span by pinch out and pinch in.
-FFT analyzer
It is possible to analyze the frequency spectrum of an input signal.
The peak level and the frequency are displayed at the top of the screen. The display can also be used as a simple frequency counter when you enter a single signal.
In addition, the THD (Total Harmonic Distortion) value is displayed at the bottom left of the screen.
By pressing the resolution button, you can select the frequency resolution free three types.
When you press the peak hold button, the maximum value of the signal that you are currently viewing is displayed in a red line.
-Signal generator
The signal generator can be used to generate a signal of four types:
Sine wave of 1Hz to 20kHz, White noise, Linear sweep and Log sweep ranging from 20Hz to 20KHz.
When you tap the area that displays the frequency or sweep time range, a picker will appear. Please set the appropriate numbers in it.
By using the mode [optimized for FFT], it can automatically change to a frequency with highest FFT accuracy.
Please use the feature if you want to accurately measure the THD.
While the frequency is displayed, it will be ignored when you enter 0000.
During the FFT synchronization sweep mode, when you enter 000 as the display start time for the sweep time display, the FFT synchronization sweep mode will be activated. It will change the frequency at high speed in FFT analysis unit time (less than 0.1 seconds) .
It is possible to observe the frequency characteristic in real time in this mode.
When you press the Copy button at any mode, you can capture screen and save it to a camera roll.
Estimates
Search Keywords 1
| # | Term | Country | Place | Priority |
|---|---|---|---|---|
| 1 | signal 1 | #8 |
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|---|---|---|
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| 25 | UK Radio - live radio stations | 1 |
Availability
Devices
iPhone3GS
iPhone4
iPodTouchFourthGen
iPad2Wifi
iPad23G
iPhone4S
iPadThirdGen
iPadThirdGen4G
iPhone5
iPodTouchFifthGen
iPadFourthGen
iPadFourthGen4G
iPadMini
iPadMini4G
iPhone5c
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
iPad75
iPad76
iPhoneXS
iPhoneXSMax
iPhoneXR
iPad812
iPad834
iPad856
iPad878
iPadMini5
iPadMini5Cellular
iPadAir3
iPadAir3Cellular
iPodTouchSeventhGen
iPhone11
iPhone11Pro
iPadSeventhGen
iPadSeventhGenCellular
iPhone11ProMax
iPhoneSESecondGen
iPadProSecondGen
iPadProSecondGenCellular
iPadProFourthGen
iPadProFourthGenCellular
Pricing by country
| Country | Price |
|---|---|
| Canada | 2.99 CAD |
| China | 15 CNY |
| France | 1.99 EUR |
| Germany | 1.99 EUR |
| Italy | 1.99 EUR |
| Netherlands | 1.99 EUR |
| Portugal | 1.99 EUR |
| Spain | 1.99 EUR |
| Poland | 2.29 EUR |
| UK | 1.99 GBP |
| India | 199 INR |
| Japan | 300 JPY |
| Korea, Republic Of | 3300 KRW |
| Poland | 9.99 PLN |
| Russia | 199 RUB |
| Turkey | 99.99 TRY |
| USA | 1.99 USD |
| Korea, Republic Of | 2.19 USD |
| Ukraine | 1.99 USD |
Reviews
All reviews →Excellent.
Simple and does exactly what it sets out to do. Thanks
すばらしい！
精度はどうか分かりませんが欲しいものがこれ一つで出来ました。 音の教育用ツールに最適。
すばらしい！
なんとこんな本格的な測定器（オシロ＋スペアナ＋SG）のアプリがあるとは驚きました、GUIだけ見ていたら、ほとんど本物の測定器と区別がつきません。実際に使おうと外部との接続をどうするかが問題になってきますが、それも開発者のサイトに詳しく書かれています。測定器としてのスペックは期待できませんが、たぶんこれはiphoneのハードウェアスペックで制限されてしまっているものと思います。あとは精度が気になるところですが、これは今後のバージョンアップに期待したいと思います。仕事では使えませんが、個人が趣味の電子工作で使うのであれば、十分使えると思います。スペックや精度的には足りない面もありますが、手軽なアプリでここまで作ってくれたことにエールを送って星5つとしました。
５ｉｎ１といってもいいかも
オシロ、スペアナ、信号発生器の３つが入った３ｉｎ１だが、スペアナモードは周波数カウンタや歪率計としても使えるので５ｉｎ１といってもいいかも。欲しかった機能が全部入ってた。 ただ、操作ボタンはちょっと小さく、押しにくいような気もするが。
バグ
Sweep logのTONE GENERATORがバグってて音が出てません。最低音で停止したままでは？
外部出力できない
使えない 良いなと思ったが、拡大して見ることできない。止まってしまう‼️
Il migliore.
Se cercate un oscilloscopio ed un analizzatore di spettro gratuiti, questo è sicuramente il migliore.
