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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>I chose the ADI part first because it met our requirements for s/n,
distortion, and channel isolation. I also wanted to play with SigmaDSP and
thought that perhaps we could use it for some local audio processing but now it
looks like we don’t need this. The part we have been using is pretty well
matched for our needs but the performance numbers are worse and it’s a 2007 part
(boss wants newer). Probably can’t go into detail what its for except can
say its not for a synthesizer/music. I do like ADI’s support group vs TI or
Cirrus. Could use separate ADC/DAC. We use a codec now but separate
it (ADC or DAC) for better channel isolation. Very open to your suggestions as
better changing now than later. We aren’t that far along.</DIV>
<DIV> </DIV>
<DIV>Barry</DIV>
<DIV> </DIV>
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<DIV> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title=mbryant@futurehorizons.com>Mike Bryant</A> </DIV>
<DIV><B>Sent:</B> Tuesday, February 22, 2022 4:18 PM</DIV>
<DIV><B>To:</B> <A title=barryklein@cox.net>Barry Klein</A> </DIV>
<DIV><B>Cc:</B> <A title=synth-diy@synth-diy.org>synth-diy@synth-diy.org</A>
</DIV>
<DIV><B>Subject:</B> RE: [sdiy] CoolAudio? USB audio streaming/codec test
question</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
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<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>miniDSP
make all kinds of board so I’m not sure which one you mean. But probably
no :-)<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>What
are you actually trying to make ? Is there a reason for choosing an
ADI part in the first place if you don’t need the bells and whistles
?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN> </P>
<DIV>
<DIV
style="BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0cm; PADDING-TOP: 3pt; PADDING-LEFT: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<P class=MsoNormal><B><SPAN lang=EN-US
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"'>From:</SPAN></B><SPAN
lang=EN-US style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"'> Barry
Klein [mailto:barryklein@cox.net] <BR><B>Sent:</B> 23 February 2022
00:13<BR><B>To:</B> Mike Bryant<BR><B>Cc:</B>
synth-diy@synth-diy.org<BR><B>Subject:</B> Re: [sdiy] CoolAudio? USB audio
streaming/codec test question<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p></o:p> </P>
<DIV>
<DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>I have the ADAU-1701
eval board. I picked/ordered that first. Then I discovered the temp
spec was not quite as good as we needed and considered the 1401A. But then
came across the 1772 and it is supposedly better for when you need to port the
digital audio IO to a fpga, which we do. Lower latency and different IO
implementation I think. Still a SigmaDSP part but has less bells and
whistles – we did not get our eval board for it yet. Read an article about
interfacing it to fpga’s that seemed to favor it. I’ve never worked with codecs
but only one around with any analog experience so I got the responsibility to
choose our codec. Ughh. I never had the need to design a board since
the Music Man days really so someone else here will do that. So do you
think the miniDSP USB streaming kit thing is as simple as hooking some jumpers
between it and the 1772 eval board or will there need to be a bit of custom
hardware involved? <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>Barry<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'> <o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'> <o:p></o:p></SPAN></P></DIV>
<DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: whitesmoke"><B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>From:</SPAN></B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'> Mike
Bryant <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: whitesmoke"><B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>Sent:</SPAN></B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>
Tuesday, February 22, 2022 2:49 PM<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: whitesmoke"><B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>To:</SPAN></B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'> Barry
Klein <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: whitesmoke"><B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>Cc:</SPAN></B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>
synth-diy@synth-diy.org <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: whitesmoke"><B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>Subject:</SPAN></B><SPAN
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'> RE:
[sdiy] CoolAudio? USB audio streaming/codec test
question<o:p></o:p></SPAN></P></DIV></DIV></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'> <o:p></o:p></SPAN></P></DIV></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>I
recently designed a PCB using the ADAU-1701 and had it built at JLCPCB which
worked out much cheaper than manufacturer evaluation boards. (Shouldn’t
really say that as we design quite a few of them :-)<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: black"> </SPAN><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'>All
the ADAU devices are pretty similar in performance.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: black"> </SPAN><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: black"> </SPAN><SPAN
style='FONT-SIZE: 11pt; FONT-FAMILY: "Calibri","sans-serif"; COLOR: #1f497d'><o:p></o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; BORDER-BOTTOM: medium none; PADDING-BOTTOM: 0cm; PADDING-TOP: 3pt; PADDING-LEFT: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<P class=MsoNormal><B><SPAN lang=EN-US
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>From:</SPAN></B><SPAN
lang=EN-US
style='FONT-SIZE: 10pt; FONT-FAMILY: "Tahoma","sans-serif"; COLOR: black'>
Synth-diy [mailto:synth-diy-bounces@synth-diy.org] <B>On Behalf Of </B>Barry
Klein via Synth-diy<BR><B>Sent:</B> 22 February 2022 22:40<BR><B>To:</B>
synth-diy@synth-diy.org<BR><B>Subject:</B> [sdiy] CoolAudio? USB audio
streaming/codec test question<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><SPAN style="COLOR: black"> <o:p></o:p></SPAN></P>
<DIV>
<DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>Hi
guys,<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>I am tasked with
checking out an Analog Devices codec (ADAU-1772) and want to interface to the
digital audio IO.<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>I see MiniDSP has a
USB Audio Streaming kit thing that may be able to do it and CoolAudio has a
TCD3020 but they seem gone (what happened?).<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>How do you guys go
about validating a codec other than just using the eval board Analog Devices
sells?<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'>Barry<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style='FONT-FAMILY: "Calibri","sans-serif"; COLOR: black'> <o:p></o:p></SPAN></P></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BODY></HTML>