ESS IMD hump fixed in MQA version.
Anyway, bad to see this "old friend".
一波既平,一波再起。。。But the MQA version did not perform well in the Multitone test...
What happened in the THD vs. freq test?
One dumb question, in Amirm testing result, the 32 tone result in low frequency(20hz), it's about 130db, in your measurement, it's 110db, I mean amirm's result is at least 10db better than yours. Why?
So there is rising overall distortion/noise, but then those H2 and H3 readings disappear? Is this an issue with the settings? The same is not visible in: https://www.audiosciencereview.com/...bre-pro-mqa-best-audio-dac-in-the-world.8729/Higher than 6.67K, you will not see the third harmonic. Above 10K, you will not see the second harmonic
What FFT size are you using?I believe this is related to the FFT settings.
其实只损伤了一点多音性能,仍然比绝大部分dac强But the MQA version did not perform well in the Multitone test...
So there is rising overall distortion/noise, but then those H2 and H3 readings disappear? Is this an issue with the settings? The same is not visible in: https://www.audiosciencereview.com/...bre-pro-mqa-best-audio-dac-in-the-world.8729/
What FFT size are you using?
其实只损伤了一点多音性能,仍然比绝大部分dac强
The 22khz bandwidth.What happened in the THD vs. freq test?
These are the parameters of @amirm's tests I have assembled so far (maybe @amirm can fill in any missing data):In that test Amir used 90KBW (so keep H2, H3 to high frequency).
I will do it again tomorrow with the same standards.
I am a bit confused about some of the settings of the Multitone test. I need some time to learn how to use it.
For comparison. You can still add measurements with other parameters as well but the standard tests should be standardized. Especially when models are retested. Otherwise people can claim that ASR measurements are invalid because they are not consistent.Why use the same parameters?
One person should have consistent measurement parameters yes but he doesn't need to follow amir's parameters. Especially when some parameters are not working very well.For comparison. You can still add measurements with other parameters as well but the standard tests should be standardized. Especially when models are retested. Otherwise people can claim that ASR measurements are invalid because they are not consistent.
Parameters which do not work well should be changed to work better - by all.One person should have consistent measurement parameters yes but he doesn't need to follow amir's parameters. Especially when some parameters are not working very well.