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Post by rock on Mar 21, 2017 22:05:55 GMT
Arny,
Your mention of Android reminds me of a crazy idea I had: Poor Man's IEM system. It uses 2 (or more) cell phones.
This may sound stupid but it just might work.
I'm presenting this the forum for your input.
Problem: Amplified band (rock etc.) playing in a small club without a sound man with the result of unbalanced instruments.
Possible solution: Use one cell phone in the audience to pick-up and bluetooth to paired cell phone receivers on stage. It is the hope that the musicians might then better balance themselves. It may not even be used full-time but just enough to get a relative balance.
Anyone know exactly how this can be done? What app can pick-up audio and bluetooth transmit at the same time? Additionally, what app can receive bluetooth audio and send it to the earphone jack?
Obviously, you still need to use IEM style noise isolating earbuds. Is this stupid or what? Thanks for your consideration.
Thanks,
Rock
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Post by arnyk on Mar 22, 2017 3:25:54 GMT
Problem: Amplified band (rock etc.) playing in a small club without a sound man with the result of unbalanced instruments. Possible solution: Use one cell phone in the audience to pick-up and bluetooth to paired cell phone receivers on stage. It is the hope that the musicians might then better balance themselves. It may not even be used full-time but just enough to get a relative balance. I'm intimately familiar with teh basic problem as a did live recording and mixing professionally before I retired. The really hard to avoid problem is bass leakage, even with IEMs. I know about the general problem, as I tried this for recording. Anyhow, it is easily done. Just use 1 cell phone and a good pair of Bluetooth or other wireless IEMs. That will work for sure. Or, use the IEMs you have, and drive them with a Bluetooth receiver. The mics in cell phones are pretty good, but some cell phones have massive electrical bass roll offs in the interest of clarity and reducing wind noise. There are ways to get around this. It turns out that on the later versions of Android the USB port on a cellphone can be used with a special cable called an OTG cable, and with the right recording app, they will bypass the cell phone's analog electronics and use an outboard USB audio interface for both recording and playback. |
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Post by rock on Mar 23, 2017 0:25:26 GMT
Arny,
Thanks, good info.
So I want to actually do this on the cheap by using 2 Android phones; one for the transmitter and one for the the receiver. I only have one set of Shure sound isolating earbuds, no electronics for bluetooth with them so I need the receiving end phone for this to work.
What I'm asking for specifically is if anyone knows of apps that can, A. allow the transmitting Android phone to send the mic'ed signal via bluetooth to B. the receiving Android phone that receives the bluetooth signal and present that signal to the headphone jack.
If anyone knows if these apps exist, I'd love to know about them.
Thanks,
Rock
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Post by Ethan Winer on Mar 27, 2017 14:44:35 GMT
How about a girlfriend or wife in the audience, or another friend with a passing interest in sound, to wave their hands and signal to the players to turn up or down.  |
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Post by arnyk on Mar 27, 2017 15:01:22 GMT
Arny, Thanks, good info. So I want to actually do this on the cheap by using 2 Android phones; one for the transmitter and one for the the receiver. I only have one set of Shure sound isolating earbuds, no electronics for bluetooth with them so I need the receiving end phone for this to work. What I'm asking for specifically is if anyone knows of apps that can, A. allow the transmitting Android phone to send the mic'ed signal via bluetooth to B. the receiving Android phone that receives the bluetooth signal and present that signal to the headphone jack. If anyone knows if these apps exist, I'd love to know about them. Thanks, Rock I studied the problem extensively online, and the best sources I found said that the cell phones have the encoders for transmitting, but lack the decoders for receiving. Given that receivers can be had for less then $20, IMO this becomes one of those situations where its better to just spend a little money rather than keep beating one's head on a wall. |
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Post by rock on Mar 27, 2017 20:07:36 GMT
Ethan, I like you're idea, unfortunately my wife is usually busy jabbering with the other bandwives but maybe I can enlist a friend. But I'm still gonna see if can get this goofy idea to work.
SO Arny, Thanks for your idea about the bluetooth receiver, I honestly did not know they existed. But do you (or anyone) know specifically what apps send a mic signal to bluetooth transmit?
Thanks,
Rock
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Post by arnyk on Mar 27, 2017 20:44:42 GMT
Ethan, I like you're idea, unfortunately my wife is usually busy jabbering with the other bandwives but maybe I can enlist a friend. But I'm still gonna see if can get this goofy idea to work. SO Arny, Thanks for your idea about the bluetooth receiver, I honestly did not know they existed. But do you (or anyone) know specifically what apps send a mic signal to bluetooth transmit? Thanks, Rock The vast majority of BT transmitters that I know of accept a line level signal. Note that the analog inputs of most phones is limited to mono. However if you are using the phone as the BT transmitter, most recent phones can accept a stereo audio signal from a USB DAC So, one would use 2 high quality mics driving a pro mic preamp. Hook the output of the Mic preamp at to the BT transmitter. BT transmitters with line level inputs are also available for around $20 and up. |
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Post by rock on Mar 27, 2017 21:17:20 GMT
Hi Arny,
I thought you knew of an android app since you said "Anyhow, it is easily done. Just use 1 cell phone and a good pair of Bluetooth or other wireless IEMs. That will work for sure."
So, especially if the app you know of is free, can you please share with me the name of the app that will work to transmit the smart phone mic via bluetooth.
Thanks,
Rock
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Post by arnyk on Mar 28, 2017 20:20:48 GMT
Hi Arny, I thought you knew of an android app since you said "Anyhow, it is easily done. Just use 1 cell phone and a good pair of Bluetooth or other wireless IEMs. That will work for sure." So, especially if the app you know of is free, can you please share with me the name of the app that will work to transmit the smart phone mic via bluetooth. Thanks, Rock The problem with using 2 cellphones is that one is then one has to play the role of the transmitter and the other is a receiver. No app seems to exist to turn a cellphone into a receiver. Transmitting is a completely different thing - most newer Android cell phones can do that as delivered. Transmitting audio via Bluetooth is built into Android I believe starting with Release 4. I know that my Samsung S5 does it and it has Android 5.1. Just pair the phone with a device that is or contains an Android Audio receiver, and whatever audio that would usually come out of the phone's headphone jack automagically comes out of the Android receiver. |
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Post by rock on Mar 29, 2017 12:36:22 GMT
Thanks for explaining all that.
Cheers,
Rock
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