I'll contact the manufacturer this week.  I expect they'll be able to help but was hoping someone else might have already "been there, done that" with this exact system.

Sounds like ichbinbose has worked with a similar piano system and had difficulty making it work well.

I just don't see how the piano can have any type of audio out unless the manufacturer already has some type of mic system installed inside the piano.  Hopefully I'm wrong and I can grab an analog audio out.  I know there's a bunch of place boxes under the piano... just don't know yet what they all do.

Sounds like you need a mixer, appropriate piano microphones, perhaps a time delay. My favorite supplier can assist with all of those things. You will need power at the piano..

Hi Fred,

In agreement about mixer and mics, but I don't thing there is anyway a time delay will help me in this scenario.

There is power at the Piano because it requires electricity, but I think it might be challenging to hide additional equipment inside or under the piano because it's made out of transparent acrylic.

I emailed the manufacture but don't expect to hear back from them until tomorrow due to the time change.

The delay could be used to time-align the signal from more than one mic since a single mic would be too short to be on-axis for all of the strings & hammers. IIRC, the last discussion about this kind of thing is where someone mentioned Hall Research-

[Link: hallresearch.com]

Interesting, but I don't think the miking will be that sophisticated.

Some back-and-forth with the manufacturer confirms the approach I thought would be required.  In a nut shell, mic the piano, mix the mic and audio out from the electronic accompaniment together with a little mixer and then send that to the DA equipment.

Their recommendation for a permanent installation like this is the Barcus Berry piano mic which is something I've used in the past.  It sticks right onto the sound board of the piano.  My experience is that it's not the best sounding solution, but they made a very valid point that the Barcus Berry won't pick up ambient sounds like a traditional boundary mic.  This minimizes the concern of privacy and keeps the piano mic from picking up people talking near the piano and broadcasting it through the house which isn't something I'd thought about.

Might not be sophisticated, but it's not uncommon for a mic and audio out to need synchronization.

Are you talking about audio delay to time align speakers in large areas?

I think my only real time delay concern with this project is the delay introduced by the Sonos system which I can't really do anything about because there's no way to delay the live acoustic sounds created by the piano.

The piano is in a Living Room that's about 40ft x 50ft and there's an adjacent Dining Room and then a Sun Room on the other side.  The floor plan is fairly open in this area, so I think when the piano is used as a music source the whole house audio in the Living Room, Dining Room and Sun Room will remain off because you'll be able to hear the piano clearly in these rooms.

The other rooms and outdoor areas where you might still be able to hear the piano are around 75-100ft away, so the 70ms Sonos delay might work out about right.  Other rooms/areas will be too far away to really hear the sound coming directly from the piano so the Sonos delay shouldn't matter.

Client approved the estimate yesterday so I'll let everyone know how it turns out.  Probably 2-3 weeks before I get it scheduled...

I did this before with a player piano. Used the audio out and put in a piano microphone inside the piano, ran both to a mixer and the output of the mixer into the sound system. I can play the piano and accompanied music, but can also be used for just the piano if someone is playing.

Was easier to hide because it was not acrylic. Agreed with other posts that unless the manufacturer has mics built in, there is no way to send the piano sound out.

used one of these mics

[Link: shure.com]

Thanks for the info... sounds exactly like the approach I'll be taking.  For the piano mic I ordered one of the Barcus Berry mics which is a direct contact mic that gets stuck onto the sound board.  This was recommended by the piano manufacturer, not because it sound the best, but because it won't pick up much ambient sound (mainly voices).

I guess with traditional mics there's been some embarrassing situations where conversations have been broadcast around the house when people standing next to the piano didn't realize their voices were being picked up by the mic.

I'm scheduled to do the work next week.

I did the piano install earlier this week and it went well.

I used a small 4ch Mackie mixer that provided phantom power to the Barcus Berry contact mic.  The audio out for the accompaniment track was intercepted and passed into the mixer and then the tape out from the mixer was fed into a Sonos Connect.

The piano already had a bunch up audio equipment installed underneath along with a humidity control system which had a reservoir, blower, heater and some sensors so it was crowded but found places to keep everything out of site.

Finding good placement for the mic took some time.  The self playing piano mechanism makes lots of noises not really present in a standard piano.  The actuators for the keys and pedals created lots of clicks, pops and other sounds that aren't very evident listening by ear, but the mic picked them all up.  Finally found a spot that didn't pick up much noise and still had decent sound.

Connecting through the Sonos Connect wasn't too big of a deal.  I was worried because I didn't have Ethernet available and no other Sonos devices close enough for SonosNet so had to configure over Wifi.  Was getting audio dropouts at first and enabled compression which cured the dropouts but introduces a significant 1-1.5sec delay.

Found that the Connect had latched onto a far away WAP and had poor signal strength so added some MAC filtering into the WAPs to lock it onto the nearest device.  Once this was done, the audio dropouts stopped and with compression disabled there wasn't a dicernible delay even when I turned on the ceiling speakers in the same room as the piano.

What is the function of that JBL speaker?

guessing to play back the accompanying soundtrack of the source

The speaker plays the accompaniment track (if the song playing has one).  The accompaniment can be anything from vocals to other instruments.

The library had songs from Elton John and Billy Joel which where the full recorded songs with the piano tracks removed and reproduced live by the self playing piano.

For example, ff you were listening to "Crocodile Rock" over the Sonos system in another room it's hard to tell that it's coming from the piano.  Through the control app (and also on the mixer I installed) you can change the balance between piano & accompaniment track.  I balanced it so the piano was a little more prominent in the mix.

If the Logitech BT receiver becomes a problem, check out Miccus- I used one for a school gym and when I walked the floor and 15' border of the full basketball court, it never dropped out, even though the signal has to go through two concrete block walls. It wasn't much more than the Logitech.