Hotword works, commands just infrequent, no response

Hello world!

Iam a new member now, because I working with the Snips Matrix Voice since week and a half now, without any success.
I tried so many options, work arounds, etc… But now Iam pretty much helpless and need some support from experts.

My setup is as follows:
PI 3B (also tried 4B)
SAM is installed on a synology diskstation 218+

amixer and test speaker/microphone is working.
Snips reacts to the Hotword “Hey Snips”
assistant is installed and works
Everything in sam status is running. MAinly 0.64.0, but a couple days long I also tried the workaround of downgrade to 0.63.3

Now the problem:
Sometimes I get the “beep”-sound, in the most cases not.
Sometimes snips gets the commands, but no audio response.
Sometimes snips don´t get the command, also no response.

See the log attached:

result:

[23:33:07] Watching on localhost:1883 (MQTT)
[23:33:17] [Hotword] detected on site default, for model hey_snips
[23:33:17] [Asr] was asked to stop listening on site default
[23:33:17] [Hotword] was asked to toggle itself ‘off’ on site default
[23:33:17] [Dialogue] session with id ‘8dbb2e13-c0b1-479d-ab0f-c1f7a99fd77d’ was started on site default
[23:33:17] [AudioServer] was asked to play a wav of 41.1 kB with id ‘dba2ac54-7c5e-42ee-906e-654a782339f7’ on site default
[23:33:27] [Audio Server] reported an error on site default : An error happened while trying to play some audio
[23:33:32] [Dialogue] session with id ‘8dbb2e13-c0b1-479d-ab0f-c1f7a99fd77d’ was ended on site default. The session timed out because the Audio Server component did not respond in a timely manner. Please ensure that the snips audio server is started and running correctly.
[23:33:32] [Asr] was asked to stop listening on site default
[23:33:32] [Hotword] was asked to toggle itself ‘on’ on site default

root@Diskstation218:~# /volume1/@appstore/Node.js_v8/usr/local/lib/node_modules/snips-sam/bin/sam watch
[00:50:19] Watching on localhost:1883 (MQTT)
[00:50:21] [Hotword] detected on site default, for model hey_snips
[00:50:21] [Asr] was asked to stop listening on site default
[00:50:21] [Hotword] was asked to toggle itself ‘off’ on site default
[00:50:21] [Dialogue] session with id ‘6a0fb09b-bc0b-4e5e-a99b-fc6dd1e52a1c’ was started on site default
[00:50:21] [AudioServer] was asked to play a wav of 41.1 kB with id ‘ec329197-b1d2-4c9a-9fd6-fbd3a5a164a9’ on site default
[00:50:21] [AudioServer] finished playing wav with id ‘ec329197-b1d2-4c9a-9fd6-fbd3a5a164a9’
[00:50:21] [Asr] was asked to listen on site default
[00:50:24] [Asr] captured text “wie spät ist es” in 2.0s
[00:50:24] [Asr] was asked to stop listening on site default
[00:50:24] [AudioServer] was asked to play a wav of 93.1 kB with id ‘92e107a7-d5ef-4705-a2a5-0c9705526ab6’ on site default
[00:50:35] [Audio Server] reported an error on site default : An error happened while trying to play some audio
[00:50:40] [Dialogue] session with id ‘6a0fb09b-bc0b-4e5e-a99b-fc6dd1e52a1c’ was ended on site default. The session timed out because the Audio Server component did not respond in a timely manner. Please ensure that the snips audio server is started and running correctly.
[00:50:40] [Asr] was asked to stop listening on site default
[00:50:40] [Hotword] was asked to toggle itself ‘on’ on site default

Since a week I tried many, many solutions, workaround, etc.

I tried several instructions, mainly this one:
docs.snips.ai/articles/raspberrypi/matrix

I really had some hope in this topic, unfortunately without success, too.

https://forum.snips.ai/t/audio-server-reported-an-error-on-site-default-an-error-happened-while-trying-to-play-some-audio/3741/9
https://forum.snips.ai/t/no-audio-from-snips-sam-test-speakers-works/2716/27

Does someone could support me and give me a hint what to do as next?

Thanks in advance,
Thomas

edit: forgott to mention which PI OS I used

I tried with:
2019-07-10-raspbian-buster-full
2019-04-08-raspbian-stretch-lite
2018-11-13-raspbian-stretch (at most)

Hello together,

does anyone has an idea where I can start for research?

Somewhere I read that a fix is in progress for this problem? Are there any news regarding the release already? Will it fix this “general sound works” but “not with snips”-problem or is it a fix for a different story?

Would it help if I share my aplay / arecord and asound.conf at first? Or are there too many opportunities?

Thanks in advance,
Thomas