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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
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Old 16th April 2018, 12:46 PM   #7181
3nity is offline 3nity  Austria
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I meant binary coding. Does it remain BTC?
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Old 16th April 2018, 12:47 PM   #7182
TNT is offline TNT  Sweden
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Neither that.

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Old 27th April 2018, 09:17 AM   #7183
bambadoo is offline bambadoo  Norway
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Sorry for bringing this up again. Quoting from another thread:
Quote:
Originally Posted by soekris View Post

The dam1021 and dam1121 will follow just after the easter vacation, they take a little more time as those are older than the current dac1421/dac1541 firmware.
Are there any news regarding new firmware for the dam1021 and dam1121?

Sorry - it doesn´t say which easter
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Old 29th April 2018, 02:12 PM   #7184
soekris is offline soekris  Denmark
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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
New firmware and filters for dam1021

Ok, the new dam1021 firmware and 4K anti-aliasing filters are now up at Soekris Engineering ApS, Downloads

I call it a beta as there are just too many revision and build variation out there, but if/when everything works then I will release it as ver 1.20.

The main new function is the new and improved anti-aliasing filters, now supporting double the number of taps, so up to 4K taps at 44.1 Ksps. Reports from dac1xxx users indicates that the new filters are great and worth an upgrade....

I have also ported the input source auto select code from the dac1xxx, so it now works very smooth....

The volume command is now more robust, and there is a new runtime phase select function, PN | PI, where PN is normal and PI is invert.

Please let me know if there are other wishes. But I will not at this time work on support for external clocks, it's of little use, it's complicated, and mostly, I don't have any setup to test it.
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Last edited by soekris; 29th April 2018 at 02:29 PM.
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Old 29th April 2018, 02:14 PM   #7185
TNT is offline TNT  Sweden
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God stuff - thanks!

Will the update also introduce the new filters in one go?

Any estimate for 1121?

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Old 29th April 2018, 02:17 PM   #7186
soekris is offline soekris  Denmark
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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Quote:
Originally Posted by TNT View Post
God stuff - thanks!

Will the update also introduce the new filters in one go?

Any estimate for 1121?

//
The the firmware and filters are in one package, just update as usual and remember the "update" command, followed by a power cycle.

dam1121 is coming soon.
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Old 29th April 2018, 02:18 PM   #7187
TNT is offline TNT  Sweden
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Great!

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Old 29th April 2018, 02:41 PM   #7188
modmix is offline modmix  Germany
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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Thanks, Søren.
Are the "DC Blocking IIR 2 Hz HP 1st order" from 1021filt_104.txt included into the new package?
If so: how can one get rid of it? - to me not using the HP IIR makes quite an sonic improvement.
Thanks
Ulli
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Old 29th April 2018, 03:01 PM   #7189
soekris is offline soekris  Denmark
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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Quote:
Originally Posted by modmix View Post
Thanks, Søren.
Are the "DC Blocking IIR 2 Hz HP 1st order" from 1021filt_104.txt included into the new package?
If so: how can one get rid of it? - to me not using the HP IIR makes quite an sonic improvement.
Thanks
Ulli
The 1021filt_120.txt is now up, same format and tool as the previous filters.
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Old 29th April 2018, 03:38 PM   #7190
modmix is offline modmix  Germany
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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Great! Thanks!
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