This is an OT but I hope Jim Web or others with knowledge can give me some guidance in sorting out a noise issue:
I am having some problems with very unpleasant and loud clicks when playing sound through Bluetooth headphones. The primary media renderer hardware is a Linn Majik DSI amplifier (pre-HDMI model) controlled by BubbleDS control point application running on Samsung S6 phone with media served by Minimserver running on Qnap NAS. In order to use Bluetooth headphones (Sony WH-1000XM2) with speakers muted to avoid annoyance to others, I utilise the Line Out from the Linn DS amplifier, which is at a fixed level and broadcast this to the headphones using an Avantree Oasis Plus (BTTC-500P) Bluetooth device. This allows me to mute the main speaker output but continue to play through the headphones. I am trying to diagnose the source and cause of the clicking problem which is painful and renders the whole setup unusable. This problem only recently appeared after I had relocated all the equipment but I have checked the basics and found nothing wrong. The clicks are only heard in headphones using bluetooth transmitter. One thought was that cause might be an overload condition such as clipping and but I cannot associate the problem with loud passages. It has occurred to me, however, that there should be an optimum configuration for volume adjustment because, even with the Line Out being "fixed," there are several volume controls; in the BubbleDS app, in the Avantree Bluetooth transmitter and in the Sony headphones. I assume not but do not know if any of these devices have any gain capability or just have passive control. Unfortunately control information is sadly lacking other than on the BubbleDS control point: no knob with a dial and figures, just an up/down button or worse a touch control with no indicator at all (on the headphones) and it is impossible to optimise signal to noise ratios. Can you please those who know about these things please comment and advise how this system should best be set up. _______________________________________________ get_iplayer mailing list [email protected] http://lists.infradead.org/mailman/listinfo/get_iplayer
