Hi James, To port 700B to the SM1000 requires some engineering. I have described the process reqd in several previous posts to this list and the digital voice list.
- David On 16/01/16 19:17, DB.JIANG wrote: > Dear David: > Thanks for so soon reply. > I have checked the ADC is DC biased at half of the VCC and the voice is > arround 1Vpp,and when TX in analog mode, the voice is clear with no > distortion when hear by a earphone. I haven't check the TX signal in > scatter plot and together with the SNR ,but it might be in sync state as > the decoded audio is constantly without any break, just some > distortion. I will check the TX signal quality again tonight and report > to you later. > By the way, I am willing to test the 700B mode within SM1000 hardware > and had heard that the RAM of STM32F4 is not enough to alloca two sets > varible for both mode. So how about to change the code and just use the > 700B mode ? Does the hardware resource meet the requirement of the > cohpsk modulation ? > Many Thanks! > > James Jiang > > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
