Anyone has the experience to fed NOS TDA1543 DAC with 176.4khz resampling signal?
I just finished my NOS TDA1543 DAC kit and fed it with some test signal and observe the output with a oscilloscope.
The sound card is Prodigy 7.1 XT which is capable to produce up to 192Khz digital signal...
however, my diy nos dac can only lock at up to 176.4khz
44.1khz sampling rate:
Sine wave 10khz:
Sine wave 20khz:
The 20khz one exactly looks like the waveform in the Kusunoki San's paper... 🙂
However, when I fed with 176.4khz sampling rate data:
Sine wave 10khz:
Sine wave 20Khz:
Looks more like a sine though...
Square wave 20khz:
(44.1khz sampling rate)
(176.4khz sampling rate)
I don't have good audio equipment in hand so no listening test...
Just want to ask if anyone have experience to feed NOS DAC with resampling data?
If I play music using foobar2000 and resampling to 176.4khz...any benefit?(looks like the waveform is better...)
or any disadvantage?
Thanks!
I just finished my NOS TDA1543 DAC kit and fed it with some test signal and observe the output with a oscilloscope.
The sound card is Prodigy 7.1 XT which is capable to produce up to 192Khz digital signal...
however, my diy nos dac can only lock at up to 176.4khz
44.1khz sampling rate:
Sine wave 10khz:
An externally hosted image should be here but it was not working when we last tested it.
Sine wave 20khz:
An externally hosted image should be here but it was not working when we last tested it.
The 20khz one exactly looks like the waveform in the Kusunoki San's paper... 🙂
However, when I fed with 176.4khz sampling rate data:
Sine wave 10khz:
An externally hosted image should be here but it was not working when we last tested it.
Sine wave 20Khz:
An externally hosted image should be here but it was not working when we last tested it.
Looks more like a sine though...
Square wave 20khz:
(44.1khz sampling rate)
An externally hosted image should be here but it was not working when we last tested it.
(176.4khz sampling rate)
An externally hosted image should be here but it was not working when we last tested it.
I don't have good audio equipment in hand so no listening test...
Just want to ask if anyone have experience to feed NOS DAC with resampling data?
If I play music using foobar2000 and resampling to 176.4khz...any benefit?(looks like the waveform is better...)
or any disadvantage?
Thanks!
I'm using 88.2 for that purpose (foobar2000) (my receiver chip does not lock good at rates above 96k) and it sounds better through speakers than plain 44.1, so no problems I can see by using 176.4.
I use CS8414 as the receiver chip.
Seems that it is a "96kHz" digital audio receiver.
I don't know why I can fed it with 176.4KHz sampling rate data.
Interestingly, the phenomena only happens when CS8414 used in master mode.
If I switch CS8414 to slave mode and use a 11.2896MHz oscillator as the re-clock.
The waveforms remain the same as 44.1KHz sampling rate ones.
I think it is because I lock the sampling rate to 44.1KHz (when using re-clock) regardless what data I input to CS8414.
Seems that I have to choose from better waveform (resampling to 176.4KHz and not re-clock) or lower jitter (re-clock)...
Don't know what is more important...any comment?
Seems that it is a "96kHz" digital audio receiver.
I don't know why I can fed it with 176.4KHz sampling rate data.
Interestingly, the phenomena only happens when CS8414 used in master mode.
If I switch CS8414 to slave mode and use a 11.2896MHz oscillator as the re-clock.
The waveforms remain the same as 44.1KHz sampling rate ones.
I think it is because I lock the sampling rate to 44.1KHz (when using re-clock) regardless what data I input to CS8414.
Seems that I have to choose from better waveform (resampling to 176.4KHz and not re-clock) or lower jitter (re-clock)...
Don't know what is more important...any comment?
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