Acoustic Transmitter
ID: com.mycompany.myDCAcousticTransmitter
-
Version:
Varies with device
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Update on:
2019-10-03
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The description of Acoustic Transmitter
The Acoustic Transmitter app is designed for use with hands-on guided learning explorations in digital communication and signal processing. A guided course of study is available at iTunesU [https://go.osu.edu/commlab] and Mathworks Matlab Courseware [http://www.mathworks.com/academia/courseware/]. The app provides a digital communication transmission signal modulated to an acoustic carrier frequency.
The Acoustic Transmitter app can be operated in two modes: carrier tone and text transmission. In either case, the sampling rate to convert from a digital signal to an acoustic signal is 44.1 kHz. In carrier tone mode, the app simply transmits the waveform cos(2πfct) for a 400 millisecond duration at a user-specified carrier frequency. The user can specify any carrier frequency to explore the effects of sampling and aliasing. In the text transmission mode, the app provides a digital communication transmission modulated to a programmable acoustic carrier frequency. The transmitter implements BPSK or QPSK data modulation, user-specified pulse shaping and symbol rate, a choice of pilot symbols for synchronization, and a data payload fixed at 50 ASCII characters. A user input with fewer than 50 characters is padded with underscores to be 50 characters in length and a longer input is truncated to 50 characters.
This app is not currently available in other languages.
The Acoustic Transmitter app can be operated in two modes: carrier tone and text transmission. In either case, the sampling rate to convert from a digital signal to an acoustic signal is 44.1 kHz. In carrier tone mode, the app simply transmits the waveform cos(2πfct) for a 400 millisecond duration at a user-specified carrier frequency. The user can specify any carrier frequency to explore the effects of sampling and aliasing. In the text transmission mode, the app provides a digital communication transmission modulated to a programmable acoustic carrier frequency. The transmitter implements BPSK or QPSK data modulation, user-specified pulse shaping and symbol rate, a choice of pilot symbols for synchronization, and a data payload fixed at 50 ASCII characters. A user input with fewer than 50 characters is padded with underscores to be 50 characters in length and a longer input is truncated to 50 characters.
This app is not currently available in other languages.
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Acoustic Transmitter Varies with device APK for Android Varies with device+
Version | Varies with device for Android Varies with device+ |
Update on | 2019-10-03 |
Installs | 1.000++ |
File size | 4.472.723 bytes |
Permissions | view permissions |
What's new |
Versions history:
- 1. LATEST. Acoustic Transmitter Varies with device APK (2019-10-03, 4 MB)
- 2. Acoustic Transmitter 1.0 APK (2019-10-03, 4 MB)
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