XRECODE

I confirmed improvements in the version as follow:


I guess you have adopted the filter sets from SoX-DSD.
https://github.com/mansr/sox

The filter sets are very well-engineered. There is no doubt.

In my opinion as a weekend DSP programmer, such as the distortion usually shows when there is a wrong code in a part of error feedback.

For your references:
LL.375-395 https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxrb29uYXVkaW9wcm9qZWN0c3xneDo3Y2E3YzZiMWE1YjcwNWI2

https ...

I updated the two graphs:



DSD-PCM has improved. In PCM-DSD, some noise-shaping coeffs have been changed, but it does not affect the distortion.

Hello,

I use my own program because there is not a proper one for a comparison between multiple formats.
The algorithm is as follow:
1. Do FFT PCM or DSD data in their original sampling rate and bit-depth with 7 terms blackman harris window.
The sample size is 32768*Fs/44100.

2. Average each ...

Hello,

I found some issues in converting PCM-DSD or DSD-PCM. The version of XRECODE3 is v1.99.

*PCM-DSD
There is a big distortion noise. The noise looks to appear in converting from all PCM sampling rate or bit-depth to all DSD sampling rate.

I have attached a graph of a conversion test. The test ...