<div dir="ltr">This is exactly why we do not design in a codec, and is why we have a very firm "no crappy codecs" policy.<br><br>Voice *is* the product when it comes to amateur radios. Yes, we will ship data, images, text, etc. but people will use voice and voice memos to communicate. <br><br>We are not going to spend all this time and energy on an ambitious and difficult system just to drape something like AMBE on top of it. <br><br>Neither codec2 or opus sound great, even at high rates. I really like the high rate aac used by WhatsApp. That's the minimum quality we should be delivering. <br><br>Codec is an application layer decision, which means really nice voice quality is possible. <br><br>If people want to downgrade so they sound like they're on System Fusion, then they are free to do so. <br><br>The repercussion of being codec agnostic is that we will have to have an application ready to go day 1 that provides a great voice experience. <br><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr">-Michelle W5NYV<br><br><div dir="ltr"><br></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Feb 24, 2019 at 8:57 AM Howie DeFelice via Ground-Station <ground-station@lists.openresearch.institute> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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I have been thinking the same thing recently. We are not bandwidth constrained on the microwave bands. Supporting 8 kbps or better CELP, Opus or similar codecs and FEC would sound real good in bandwidths less than or equal to FM.<br>
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Get <a href="https://aka.ms/ghei36" target="_blank">Outlook for Android</a></div>
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<div id="gmail-m_-2156671464728771127x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Ground-Station <ground-station-bounces@lists.openresearch.institute> on behalf of Phil Karn via Ground-Station <ground-station@lists.openresearch.institute><br>
<b>Sent:</b> Sunday, February 24, 2019 12:47:22 AM<br>
<b>To:</b> ground-station@lists.openresearch.institute<br>
<b>Subject:</b> Re: [Ground-station] FreeDV QSO party, FreeDV GUI as a starting point for P4G?</font>
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<div class="gmail-m_-2156671464728771127PlainText">I don't have an opinion on the GUI but I do think that we need better<br>
voice quality than Codec2 can provide. There's not much choice on HF<br>
because of the severely limited data rate, but we can afford a higher<br>
data rate on satellite links.<br>
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Phil<br>
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