Wireless rechargeable table mic (bluetooth)

Post a link to what Bluetooth mic works well for you! What are the pros and cons?

I just got a set of HAs that do not have any proprietary tech for wirelessly connecting to a microphone (like Roger), but they DO connect to anything Bluetooth (can you guess what brand?). These are wonderful so far except that I was in a very noisy restaurant a few days ago, and our table was very big and round. While I had no problem hearing EVERYBODY in that restaurant, I could not clearly hear people on the opposite side of this big table.

My Amazon Echo dot has an array of microphones and some smart tech that allows it to get a pretty good signal to noise ratio on sound sources that are fairly close and directional. It would be really nice if I could find this kind of tech in an omni-directional table microphone.

If only I could find a small pocket-able table mic that is rechargeable and broadcasts over Bluetooth. Then I could bring it out at a table, turn it on, and set it in the center of the table. I might hear everyone at the table! Wouldn’t that be nice for all these new Bluetooth hearing aids?

I looked for the best option for this, but I couldn’t really find anything that is just a mic or completely wireless or small.

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I have the Roger Select and it is great! I don’t think that there is any other equivilent out there yet, but it is coming soon. I expect all the other companies to be coming out with their versions soon. Also Chinese copies and clones.

There are some pro audio remote mics that do the same thing but they are very expensive and may not be all that compatible with aids.

I don’t know which brand you have, but the little Phonak remote mic is regular Bluetooth. Go to eBay and in the search window, just enter “Phonak Remote Mic”. They are about $30 there. I have one, and it pairs and works with my Marvels, but there is considerable latency. Resound makes one called a Multi Mic, which uses BLE, and will not pair with Marvels. If you do have Resound aids, this might be an option. I don’t remember it having latency issues, but then I had very poor luck with Resound, so I can’t say for sure. Worth a try.

Looking for Bluetooth. I wonder if latency is a problem with all bluetooth.

Roger Pen! It is pretty amazing. I understand the Roger Select is better, but my used Roger Pen was only $170.

Also, I’ve had good luck at tables using the directional setting (I call it the cone of sound) and sitting with my back to room noise.

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Short answer - NO
I use Bluetooth everyday as often as I can to stream to my Oticon OPN1 hearing aids with absolutely no latency.
I also use Live Listen on my iPhone as a remote mic to stream directly to my MFi hearing aids. I have no idea what hearing aids you have, so this may or may not be an option or solution for you.

Does the Live Listen on iPhone have much latency?

Also, does anybody know is the Live Listen with AirPods has much latency?

The Alead LiveMIC2 works perfectly for me. I have used it for about two years every afternoon when I play cards with my wife. I also take it with me for doctor and dentist visits.

It depends :slight_smile:

Some people looked carefully at bluetooth for high quality audio - the results were quite variable depending on the implementation of bluetooth on both the sending and receiving device. Latency on some cheap and poorly designed devices was terrible - others were much better. Audio quality also depends on the codec chosen and how the codec is implemented in both the sender and receiver. Again, wide variations in the quality and performance depending on the device. Some common implementations of codecs were incomplete and had serious bugs - in the hardware and software and drivers. Some receiver implementations force the sender to use settings that result in both increased latency and poorer quality audio. Apparently many vendors don’t care about how well things are done if they can still sell things …

That said, it appears that the hearing aid manufacturers that offer MFI devices have attempted to minimize latency. I assume the same is true of non-MFI hearing aid Bluetooth implementations but for them, the hearing aid manufacturer cannot assume that the sender will meet certain specifications as the bluetooth implementations of phones, computers, and add-on bluetooth transmitters vary significantly.

With an open fitting, latency delays the processed signal so it is arrives later than the sound arriving directly. This has been described by some as changing the timbre what you hear. A Siemens paper described the changes as spectral and stated that they attempted to keep the latency in the hearing aid to less than 10 msec from input to the microphones to output of the receiver. Adding fancy processing in hearing aids tends to delay things in the signal processing chain and that information is typically not easily found …

For other applications like streaming TV audio, latency can cause lip sync issues and echos if the latency is long. Some manufacturers like Oticon specify the maximum latency in the processed signal (for example input to the TV Adapter 3 to the output of the hearing aid receiver) but finding the specification or performance may be difficult. Devices like the TV Adapter use both Bluetooth and some other non-bluetooth proprietary protocols in the same basic frequency band - finding out details is difficult, possibly due to the MFI non-disclosure agreements. However for my Oticon OPN S 1 aids and my TV Adapter 3, the maximum latency is specified and is dependent on the input to the adapter: 25 msec for the analog input, 28 msec for the Digital input (TOSLINK), and 45 msec for Dolby Digital (TOSLINK).

In my case, I have a semi-open fitting and I find that listening to the TV is easier if I turn mute the hearing aid microphones so all I hear is the streamed audio. The frequency response is worse, especially at the low end, but I can understand voices better that way. I don’t know if that is due to the latency delaying the hearing aid signal as compared to the signal from the TV sound bar. Maybe the improvement is due to the reduced room noise and reverberations when the mics are muted. Too many variables for me to sort out :slight_smile:

One thing to remember for small latencies - there is an increasing latency in the direct signal as the distance from the source increases as sound travels at about 1125 feet/sec so a bit less than 1 msec per foot. If your device has a small latency you can effectively cancel it by choosing your distance from the source.

I wear Oticon OPN1 aids, and I use the connect clip for anything that isn’t MFI and I do not detect any real latency, and I am a lip reader. My fitting is ITE aids with a very small vent. The only time I have noticed a latency was a movie on TV and my wife who has good hearing was even complaining about the latency.