I am having an issue after installing custom sound files on my ZSE50. When I play the custom files, I hear a random sound artifact immediately before the custom sound plays. The artifact only appears after the speaker has been idle for 5 seconds or more. The artifact plays for about 250 ms, then I hear my custom sound.
Before installing my custom sound files, the factory-supplied sound files play without the artifact. After I install the custom files, I hear the artifacts on both the factory-supplied sound files and my custom files. I have tried both .mp3 and .wav custom files. No difference.
I generate the sounds with the Mac ‘say’ command, e.g.,
say -v Victoria "[[slnc 500]] Motion alert: Front Door" -o front_door.wav --data-format=LEI16@44100
After copying the files from my Mac to the ZSE50, I also execute:
dot_clean -m /Volumes/NO\ NAME
to clear up the Mac dot files.
Any ideas on how to eliminate the initial artifact/buzz when my custom sounds play. They’re annoying!
I’ll +1 this – I’ve seen it a couple times now, but not consistent. I have not noticed it on multiple plays in a minute, and my use case is much less frequent than a door open/close. I’ll see if I can correlate it to a set idle time as well. That’s great additional data to try out over here.
I have found better overall device behavior if I remove ALL files and reapply them sequentially if I’m making any changes or additions. I’m not using a mac, but perhaps the subsequent cleanup is playing into it…
I have noticed that the artifacts seem to ‘disappear’ after a few hours – or maybe it’s after a few plays. It seems like things ‘settle down’ after a bit. This makes no sense to me, but I guess I could live with that.
I haven’t tried deleting everything and reloading. I’ll try that soon.
All useful anecdotal evidence–and indication we’re not crazy or hearing things!
Considering at some level there’s a D to A converter (the audio is stored digitally, but the speaker is fed an analog signal), it could be simply a timing issue resulting in a quick, significant ramp-up of the output vs. a gentle ramp up from a zero-crossing point of the audio waveform. Just speculating here…
