ARTSAT2: DESPATCH (8) Voice from the Space in English

The DESPATCH is still alive even it is over 1,000,000km far away from the earth. The amatuer stations who keep "Big Guns" still send reports.
I had tried to listen to the voice directry by myself, but I only heard some morse code.
I finally get the voice that says his callgisn, "JQ1ZNN", after filtering the recorded sound.
The signal started from 11:05:58UTC on Dec. 3rd, about 110,000km far away. Here I uploaded the sound files after filtered and before filtered. I feel the headphones, that is not good at the high frequency, is better to recognize the signal.

Filtered sound file of the DESPACH voice

Non-Filtered sound file of the DESPATCH voice