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<DIV><FONT face=Arial size=2><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman"><PRE> </PRE><PRE>>Dear Speex developers
>I am going to port Speex on LPC2368
>I tested Speex encoding and the mesurments shows ~40ms cpu time for one
>frame
>Do you know who ported speex to NXP or other 32bit platform?
>Best Regards
>Zohar fox
</FONT></FONT></SPAN></PRE>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">I
have an own optimisation for Speex for different versions of ARM
architecture.<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3></FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">Here
is <SPAN style="COLOR: #4c4c4c">Measurements of</SPAN> performance for STM32 72
MHz. <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">4000
kbit/sec<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 59% <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder - 3%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">6000
kbit/sec<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 43% <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder – 3.8%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">8000
kbit/sec<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 47% <o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder - 4%<o:p></o:p></FONT></FONT></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><B
style="mso-bidi-font-weight: normal"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3></FONT></o:p></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">11200
kbit/sec<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 65% <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder – 4.1%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">15000
kbit/sec<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 53% <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder – 4.2%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Except 11200 mode it can work on 48 MHz STM32 USB Access
Line. (11200 probably can work in non full duplex
application).<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3></FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Version for ARM v5E (STR9) is faster for about of<SPAN
style="mso-spacerun: yes"> </SPAN>25% for comparable processor’s
frequencies, by using of DSP commands.</FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT
face="Times New Roman"><SPAN lang=EN-US style="mso-ansi-language: EN-US">Version
for ARM v4 (STR7, LPC21XX/23XX/28XX) can work even on 60 MHz. (but not all speex
modes. Just</SPAN><SPAN lang=EN-US> </SPAN>6,8,15).</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman"
size=3></FONT> </P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">Here
is <SPAN style="COLOR: #4c4c4c">Measurements of</SPAN> performance for LPC2138 -
60 MHz. <o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT face="Times New Roman"
size=3></FONT> </P><FONT size=3><FONT face="Times New Roman">
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">4000
kbit/sec (quality = 1)<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 17.9 msec/frame 59%
<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder - 0.97 msec/frame
3%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">6000
kbit/sec (quality = 2)<o:p></o:p><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 13.5 msec/frame 43%
<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder – 1.11 msec/frame
3.8%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">8000
kbit/sec (quality = 3)<o:p></o:p><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 15.07 msec/frame 47%
<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder - 1.14 msec/frame
4%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3></FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">11200
kbit/sec (quality = 5)<o:p></o:p><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 21 msec/frame 65%
<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder – 1.19 msec/frame
4.1%<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face="Times New Roman">15000
kbit/sec (quality = 7)<o:p></o:p><o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Encoder - 16.71 msec/frame 53%
<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT
face="Times New Roman">Decoder – 1.24 msec/frame 4.2%</FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT face=Arial
size=2><o:p></o:p></FONT></FONT></SPAN> </P></FONT></FONT>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><FONT
face="Times New Roman">on LPC2368 - 72 MHz NXP All modes work ( in case of using
DMA for collect 160 input samples)</FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p><FONT face="Times New Roman"
size=3> </FONT></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p>Best Regards<BR>Vitaliy
Kanevsky<BR></o:p></SPAN></P></FONT></DIV></BODY></HTML>