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Sound Modem Voice Enhancement Technologies Hearing Enhancement Technologies |
Sound Modem
Alango Short Range Sound Modem (SRSM) White Paper


Alango Short-Range Sound Modem (SRSM) technology allows for transferring arbitrary digital data, over-the-air, to a device via a narrow-band voice acoustic channel. The frequency of the data is within the human-audible spectrum utilizing a standard speaker from the transmit device to a standard microphone on the receive device; it’s simply data-over-sound.
Voice Enhancement Technologies
Acoustic Echo Cancellation for Low Cost Applications


AEC technology interactive white paper
Automatic Volume and eQualization control


AVQ technology interactive white paper
Adaptive Dual Microphone


ADM technology interactive white paper
Hearing Enhancement Technologies
Digital Signal Processing for Over-the-Counter Hearing Aids


In this whitepaper, we look at the principles of digital signal processing, algorithms and software that improve hearing for people with hearing loss.