Re: Re: another sidetrack
I was mostly referring to the 1738 which already has a built in digital filter and will not work without internal or external filter.
rfbrw said:
I was mostly referring to the 1738 which already has a built in digital filter and will not work without internal or external filter.
Bernhard said:
Actually, given that it is quite possible that you are on the wrong path, I would have thought it is your problem.
Re: Re: Re: another sidetrack
That wrong path again. The '1738E will work with an external digital filter with the internal 8Fs filter bypassed or with the internal 8Fs filter.
Bernhard said:
That wrong path again. The '1738E will work with an external digital filter with the internal 8Fs filter bypassed or with the internal 8Fs filter.
Re: Re: Re: Re: another sidetrack
Your wrong path.
It will not work without digital filter. You must use one of the two.
Some people claim that digital filters produce pre-ringing.
I pick one CD player with 8 x os to see if that is true.
What I see is pre-ringing.
I check my non os DAC with analog brickwall filter and I see no pre-ringing.
That's all.
rfbrw said:
Your wrong path.
It will not work without digital filter. You must use one of the two.
Some people claim that digital filters produce pre-ringing.
I pick one CD player with 8 x os to see if that is true.
What I see is pre-ringing.
I check my non os DAC with analog brickwall filter and I see no pre-ringing.
That's all.
Re: Re: Re: Re: Re: another sidetrack
Clearly you have little experience with PCM1738E. It doesn't need a digital filter. It simply requires a certain data rate when the internal filter is bypassed. For example, it will work directly with 192k data.
Bernhard said:
Clearly you have little experience with PCM1738E. It doesn't need a digital filter. It simply requires a certain data rate when the internal filter is bypassed. For example, it will work directly with 192k data.
Re: Re: Re: Re: Re: another sidetrack
Congratulations Bernhard. You must feel over the moon. You have made a discovery equivalent to finding out circles are round. A few seconds with any decent DSP book would have shown up what you have just discovered.
Bernhard said:
Congratulations Bernhard. You must feel over the moon. You have made a discovery equivalent to finding out circles are round. A few seconds with any decent DSP book would have shown up what you have just discovered.
Why do you behave like this rfbrw ? Does it make you feel any better ?
Given the fact that you are right you could just use your experience by guiding misleaded souls like us all to the right direction directly. It is only a few sentences and some patience more in one post.
Plus eternal famosity as a bonus.....
Given the fact that you are right you could just use your experience by guiding misleaded souls like us all to the right direction directly. It is only a few sentences and some patience more in one post.
Plus eternal famosity as a bonus.....
Please can we end this vinger pointing to eachother? It doesn't lead to anything.
The story is and will be as ever: Diyers are split up in pro and contra digital OS. I am a little inbetween, to me it doesn't matter how the music is reproduced, if it sounds good, its good.
And as allways: a matter of taste.
My collegue doesn't like mustard, i do. It is that simple.
Yesterday i listened to it again, with CD i know good: Pink Floyd remastered Dark side of the moon. It's nice to hear the clockwheels running very clear and obvious in the track wich begins with the bells. Also the percussion is reverbs are very nice.
But i heard a rather peculiar thing also: something extra around tone's, a real DIGITAL edge, like low bitrate toystuff sound. It was very faint, bit still. I must say the AD844 stage is quite accurate and fast, i suspect this comes from the nonos implementation.
It definately needs a filter to cut some of the unwanted HF away. The GIC filter looks good to me too.
The story is and will be as ever: Diyers are split up in pro and contra digital OS. I am a little inbetween, to me it doesn't matter how the music is reproduced, if it sounds good, its good.
And as allways: a matter of taste.
My collegue doesn't like mustard, i do. It is that simple.
Yesterday i listened to it again, with CD i know good: Pink Floyd remastered Dark side of the moon. It's nice to hear the clockwheels running very clear and obvious in the track wich begins with the bells. Also the percussion is reverbs are very nice.
But i heard a rather peculiar thing also: something extra around tone's, a real DIGITAL edge, like low bitrate toystuff sound. It was very faint, bit still. I must say the AD844 stage is quite accurate and fast, i suspect this comes from the nonos implementation.
It definately needs a filter to cut some of the unwanted HF away. The GIC filter looks good to me too.
jean-paul said:
Like what ? If you choose to remain ignorant and prefer to behave like a Luddite faced with the industrial revolution, then you should not be surprised if you get mocked. How hard can it be to inform yourself, given the vast array of resources available online and in print ?
Insofar as it has stopped my head from exploding from exasperation, yes, I do feel better.
Read a book, read a datasheet, use the internet, anything. I am no smarter than anyone else, I just put in the necessary effort.
I'm happy with anonymity.
tubee said:
If it means the end to the peddling of complete rubbish about the topic in question then it is all to the good. Anyway, I thought this was about the SAA7210 and the PCM56.
130+ posts and still no definitive answer to the original question. You'd think there would be a circuit by now.
rfbrw, first it's:
Then:
I don't get it, have to earn some money, care for a family and inbetween also have to come up with a circuit exactly you have in your mind.
I HAVE a circuit which works but want to improve it (noise, stopped clock) I HAVE a new design but don't want to spend $10 on packing and processing costs to get two 39cents 74HCT00 gates sending to my home. Have them now btw. And as sead earlier don't want to show it before i tested it.
Then:
I don't get it, have to earn some money, care for a family and inbetween also have to come up with a circuit exactly you have in your mind.
I HAVE a circuit which works but want to improve it (noise, stopped clock) I HAVE a new design but don't want to spend $10 on packing and processing costs to get two 39cents 74HCT00 gates sending to my home. Have them now btw. And as sead earlier don't want to show it before i tested it.
tubee said:
If it has noise then it does not work.
You could spend less than $10 on a CPLD and then you wouldn't have to wory about discrete logic.
Ofcourse, its good idea to use CPLD, much easier to make changes but the programming CPLD is quite complicated, also I dont have programmer (JTAG?). What CPLD and which easy free programming software you suggest?
For try out discrete is good enough to me. And dislike all that allmost all windoze programming tools also.
SAA7210 ICs
Hey Guys,
I'm looking for a couple of SAA7210 ICs and was wondering
if anyone had any spares I could Paypal (or Money Order) them for.
Hopeful in Ohio
Hey Guys,
I'm looking for a couple of SAA7210 ICs and was wondering
if anyone had any spares I could Paypal (or Money Order) them for.
Hopeful in Ohio
pupsik46 said:
Programming via JTAG is quite simple. Plug in the cable, select the device and that's it. Altera, Lattice and Xilinx all have free design and programming software. The devices do not need a programmer just a header next to the device that the programming cable plugs into. Schematics for the simpler cables are usually available at the manufacturer website.
As to devices, yes, you could buy one and make a board but these days unless you really must keep costs down to the minimum it is easier to buy something like this.
tubee said:
CPLD tools are available for linux as well, if that is your bag.
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