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sybreon
sybreon
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AnotherIn addition to what @goblinbox commented, another possibility to consider, would be to build a soft-modem yourself. A modern ARM processor should have enough chops to handle most of the signal processing stuff in software.

According to the ARM guide, the only extra hardware needed is a 14-16bit linear CODEC at 8kHz and the PSTN interface circuit. The guide is only for V.22 but it's a start.

There seems to be other sources for soft-modems as well.

Another possibility to consider, would be to build a soft-modem yourself. A modern ARM processor should have enough chops to handle most of the signal processing stuff in software.

According to the ARM guide, the only extra hardware needed is a 14-16bit linear CODEC at 8kHz and the PSTN interface circuit. The guide is only for V.22 but it's a start.

In addition to what @goblinbox commented, another possibility to consider, would be to build a soft-modem yourself. A modern ARM processor should have enough chops to handle most of the signal processing stuff in software.

According to the ARM guide, the only extra hardware needed is a 14-16bit linear CODEC at 8kHz and the PSTN interface circuit. The guide is only for V.22 but it's a start.

There seems to be other sources for soft-modems as well.

Source Link
sybreon
sybreon
  • 1.6k
  • 1
  • 13
  • 13

Another possibility to consider, would be to build a soft-modem yourself. A modern ARM processor should have enough chops to handle most of the signal processing stuff in software.

According to the ARM guide, the only extra hardware needed is a 14-16bit linear CODEC at 8kHz and the PSTN interface circuit. The guide is only for V.22 but it's a start.