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Old 14th April 2011, 12:58 PM   #31
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Yes。UPsampling is indeed a thankless function

Last edited by evangelion1999; 14th April 2011 at 01:02 PM.
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Old 14th April 2011, 01:07 PM   #32
erin is offline erin  Australia
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Yes。UPsampling is indeed a thankless function
I am glad you agree
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Old 14th April 2011, 01:17 PM   #33
sendler is offline sendler  United States
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Default Upsampling is crucial

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Originally Posted by erin View Post
I am not a fan of upsampling. If you add an upsampling chip, you will increase the cost, and add another chip in the signal, probably decreasing sound quality.

If people want upsampling they can do it with software on the computer.
Your other options are very acceptable in my opinion.
thanks
Upsampling or at least reclocking with DIR9001 is crucial to getting the best sound from any modern dac chip. Otherwise you are at the mercy of your jitter laiden spdif source and cable. It is night and day as any Gigaworks Big Dac Board user (plug in modules for receiver and upsampler makes comparing easy) will tell you.
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Old 14th April 2011, 01:17 PM   #34
Cobra2 is offline Cobra2  Norway
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Please, no upsampling! - if you could use the good old CS8414 (5Volt) digital parts, it will do better!

Arne K
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Last edited by Cobra2; 14th April 2011 at 01:19 PM.
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Old 14th April 2011, 01:36 PM   #35
erin is offline erin  Australia
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Originally Posted by Cobra2 View Post
Please, no upsampling! - if you could use the good old CS8414 (5Volt) digital parts, it will do better!

Arne K
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Old 14th April 2011, 01:39 PM   #36
erin is offline erin  Australia
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Originally Posted by sendler View Post
Upsampling or at least reclocking with DIR9001 is crucial to getting the best sound from any modern dac chip.
Mate, a good power supply and good decoupling caps are what you need for any DAC chip. If you are running anything less than oscon or solid capacitors on your receiver and DAC chips, then this is your problem.
Hardware upsampling - been there done that. Not going there again. Software upsampling will give you what you want without introducing extra power supply demands and ground currents on the critical DAC board.
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Old 14th April 2011, 02:13 PM   #37
sendler is offline sendler  United States
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Default Long time ago?

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Originally Posted by erin View Post
Mate, a good power supply and good decoupling caps are what you need for any DAC chip. If you are running anything less than oscon or solid capacitors on your receiver and DAC chips, then this is your problem.
Hardware upsampling - been there done that. Not going there again. Software upsampling will give you what you want without introducing extra power supply demands and ground currents on the critical DAC board.
Your upsampling trials must have been a long time ago when the concept was in it's infancy. Putting a modern, high performance clock right on the board after all of the spdif is over makes a night and day improvement. See the thread:
.
Experience with this DIY DAC ?
.
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Old 14th April 2011, 02:17 PM   #38
Cobra2 is offline Cobra2  Norway
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Quote:
Originally Posted by sendler View Post
Your upsampling trials must have been a long time ago when the concept was in it's infancy. Putting a modern, high performance clock right on the board after all of the spdif is over makes a night and day improvement. See the thread:
.
Experience with this DIY DAC ?
.
Only because the design is "flawed" from the start...

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Old 14th April 2011, 02:46 PM   #39
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你们喜欢CS8414?

Do you like CS8414?
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Old 14th April 2011, 03:25 PM   #40
Cobra2 is offline Cobra2  Norway
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Quote:
Originally Posted by evangelion1999 View Post
你们喜欢CS8414?

Do you like CS8414?
Yes, IMHO slightly better than CS8416, and much better than DIR9001
AKM also have great receiver-chip! (AK 4114)

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