Post Campaign Update #44. Sound Issue
Dear Sgnl Backers.
Currently, Sgnl has been officially released a sound algorithm (sound leakage reduction, voice clarity improvement) by firmware version 1.1.4 on August 10, 2018, and additionally the latest firmware version 1.1.5 was released on Wednesday, August 29, 2018 to improve device stability such as improving improper connection/reconnection of Bluetooth and malfunction of battery check.
If the leak sound gets bigger, the sound goes back into the Sgnl’s microphone, so when the call is made, the user may hear the echo sound, which can be uncomfortable to use.
In firmware version 1.1.4, we have made a lot of efforts to reduce the sound leakage and echo. As a result, the phone tones tend to sound a bit smaller on Android phones and iPhones, but we have been able to minimize the sound echo with the algorithm. Firstly, the development was proceeding with the plan to improve the voice clarity minimizing the leak sound and to be heard more clearly.
During the development, we’ve received feedbacks from Backers that the leak sound is too big and sound echo occurs. We’ve tested again and found out that sound echo occurs with iPhone as feedbacks, not with the Android phone according to our intention.
To explain the current situation, Android works as our development intention, but iPhone, when the Sgnl is activated after Bluetooth connection, more Bluetooth power than our intention is delivered to the BCU (body conduction module), so that a much louder sound is being produced. The sound echo is occurring because of the big leak sound.
Our development team is now investigating why this is happening on the iPhone. We apologize for the firmware update without noticing this problem. We’ll try to quickly identify the issue and resolve it.
There have been 4 firmware updates since July when we started shipping Sgnl. We’ll continue to make efforts to stabilize and improve the function by receiving feedbacks from Backers.
They are the first mass-produced products of our lab, so they are not perfect, but we’ll always try our best to improve them with feedbacks from Backers. We’ll not forget your support and look for various ways to benefit you when our products come out in the future. We would be grateful if you could trust us to the end.
The Sgnl Team