Good morning, Perhaps I'm going slightly OT, but as I suppose that you audio specialist here are familiar with my question, I'll try it here: Now that the phono streaming to LMS is working, I'm looking for a way to have a clean shutdown (as opposed to simply switch of the power) of the Raspi Zero once there is no significant audio signal on the line in of the sound card, for example 15 minutes after the last vinyl record reached its end. Significant in the sense of music, because I suppose that, having an analogue source, there will always be some basic noise or humming, even when no record is playing. I've been browsing throug the alsa utils and alsa tools, but didn't find a tool to detect and/or measure the audio level on the sound card. What I did find is sox beeing used to detect audio (for example http://thomer.com/howtos/detect_sound.html). But it seems that sox analyzes a 5-second-recording, and my Linux skills aren't even sufficient for analyzing whether sox could also detect an Icecast stream or LiquidSoap's output, let alone how. As I don't want to re-invent the wheel and was thinking that there might have been others resolving this kind auf auto standby/shutdown: Do you have any hints for me? Thanks & best regards Martin
PCP (always latest version) on RasPi 3 with PhatDac (player & server) PCP on several RasPis 2 +3 2 Airplay speakers (Sony SA-NS510) integrated via Airplay Bridge Plugin ------------------------------------------------------------------------ streampunk's Profile: http://forums.slimdevices.com/member.php?userid=66210 View this thread: http://forums.slimdevices.com/showthread.php?t=49584 _______________________________________________ plugins mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/plugins
