Sonos PlayBar Popping Noise with FF

I'm having the same issue with a Playbase and 2 Play:1 rears. I have an older Vizio TV (model P50HDTV10A) with only 2 HDMI inputs and no optical audio out so I'm using a Monoprice HDMI 4x1 switch (model HDX-401TA), which has optical audio out, to connect my Tivo/cable box, Apple TV and Blu-ray player to my Sonos system. When I switch between cable channels I hear a crackling sound for about 1/2 a second, and sometimes a high pitch chirp. If I set my Tivo box audio settings to PCM, or set the audio output on my Monoprice switch to stereo instead of 5.1 the crackling/chirp goes away, but the sound quality is sacrificed. Is there anything else I can try in order to eliminate the crackling/chirp but keep the 5.1 audio input into the Playbase? Turning off Tivo sounds didn't help.

Hello fonman99 and Eric_H, It seems like you two are having similar issues with the TiVo being the common piece connected to each of your Sonos systems.

@fonman99 Do you notice the issue with any other source device besides the TiVo? If you bypass the TV and wire the optical connection directly to the back of the TiVo do you still notice the problem when the audio output is set to Dolby Digital?

@Eric_H You mentioned other devices connected to the HDMI switch. Do you experience the odd behavior when playing back from your Apple TV or Blu-Ray player?

We'd like to get a closer look at your systems here. Can you both submit a diagnostic and let us know the confirmation number? Once we take a look at the logs, we should have a better idea of the problem.

@Chris F The issue only seems to occur when I'm changing channels on my TiVo/cable box. I don't ever seem to hear it when I'm using my Apple TV or blu-ray player. Switching the audio output to PCM stereo on my TiVo box, or to 2 ch stereo in my Monoprice switch eliminates the noise. I submitted diagnostics a few minutes ago. Number is 7370892.

Hi Eric_H, This sounds like an issue that would be best looked at live. Would you mind calling in to our support line for further troubleshooting? Our contact information can be found at this link. We've already set up a support ticket for you, so just let the technician know your email address when you call in.

I have the same problem. I have a gen 1 Playbar, Sub, and two built in speakers connected to a Vizio TV using Comcast Xfinity X1 box. Whenever I pause TV I get the popping noise.

It is set to Dolby 5.1 in the Xfinity menu. If I change it to stereo/PCM the popping stops.

That's great, but now I have no Dolby surround sound. Is there any way I can get surround sound with my setup and avoid popping noise?

Hi PhillyGuy06,

If the PLAYBAR is connected to the TV, please try plugging it into the optical port Xfinity Box and let us know if you are still seeing the same issue.

Hi having a similar issue with PlayBar and surround (play 3’s and sub) with Samsung QLED and Sky TV.
Really loud pop/bang sporadically whilst on TV. Very annoying. Sounds like whenyou used to plug ina phono cable with the volume up. Help!!