Using Phonak M & streaming with my TV

My struggles with trying to gain control of the TV audio to mute the ads, etc., finally resulted in my using analog out set to the variable mode and splitting that between the Phonak streamer and the Vizio soundbar with the TV speakers off. Balancing between TV and surround with the Phonak app gives a very pleasant experience. I have noticed there is a very very slight delay between the HAs and the soundbar. Enough to barely notice but adjusting the balance took care of that, ie, drowned it out. The HAs will time out after 30 sec of no audio and my aud has to set a software switch so that the HAs would automatically reconnect but there is a few seconds delay with that too. However, it means that ANY time you come within range the HAs connect. So, if your TV is constantly on and you are roaming around the house it can be a nuisance…

The TOSLINK would not mute for my Vizio TV, perhaps that is true for all TVs. First try with a TOSLINK passive splitter resulted in the streamer working while the soundbar did not because signal strength reduced 50% by passive split (just a mirror). I had to use a powered splitter to get both to work but again no muting of the streamer audio into the Phonak M90s.

A comment that may be relevant.

I suggest you might try to find out if Phonak publishes more technical info on you streaming device than is in the User instructions. It might answer some questions you or others might have.

I use Oticon OPN aids and the Oticon TV Adapter 3. I found a “Technical data sheet” on the professional side of the Oticon web site. In that two page document I find that Oticon specifies things not found in the users manual including the “Latency (TV adapter input to hearing aid speaker” and that the latency varies with the input. For analog it is 25 milliseconds and for Digital (TOSLINK) it is 28 ms and for Dolby digital (TOSLINK) it is 45 ms. The audio bandwidth is specified only as “10 Khz/stereo from input to hearing aids”. One interesting aspect of the Oticon TV Adapter 3 is that it has a buffered TOSLINK output of the TOSLINK input so you would not need an active splitter if you need more than a single TOSLINK signal for a audio setup.

I have no idea what level of Latency a typical person can detect. It might be relevant as Oticon at least specifies it. I wonder if the sound bar also has latency between the optical signal and speaker output …

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