You want to access the inner parts of the speaker. The majority of speakers come with a rigid body that you may need to open up. You may require a power saw to open it up. Please note that a power saw is a power tool.
Experts recommend using low-frequency speakers instead of both speakers. This way, you can avoid any unwanted scenarios with the flow of sound. You do have the option to use both of them, but this guide will involve only the low-frequency speaker.
Use A Speaker As A Microphonel
A general speaker will consist of a low-frequency driver and a mid-range driver. Since you will be using the low-frequency driver or speaker, it would be best to cut the wire that leads to the mid-range driver.
This is done by using an amplifier for the tiny signal the speaker puts out. You have to be very careful with that circuit as usually the currents are very small so it's hard to get a useful signal from a speaker.
Why do you want to use the speaker and not a microphone? The majority of speakers won't provide a clear enough signal to recognize voice commands. Speakers are optimized to generate sound and not to sense it. I doubt that you can get a signal out of a standard speaker to actually recognize a voice command.
pylon:This is done by using an amplifier for the tiny signal the speaker puts out. You have to be very careful with that circuit as usually the currents are very small so it's hard to get a useful signal from a speaker.
Hi Navab; there is no reason why you cant use a speaker as a microphone; however the impedance of a speaker (typically 3 - 60 ohms) is a poor match to any arduino input, and the signal you get will be very small.
If you really MUST use a speaker then I'd suggest you get a matching transformer or small mains transformer - say 240 - 3V (ie 80:1) which again may give a big enough signal. However you would need to disconnect it somehow if you are also intending to use the speaker for output, as the big signal to the speaker would fry anything connected to the transformer.
The smaller the speaker the higher the frequency range and likely more sensitive generally, which helps as a microphone. However you lose bass and power handling used as a speaker. This is why speakers are rarely used as microphones.
I need to record voice on my old desktop PC (Asus P5B-SE - Windows 7). There are three lines on back panel: two with speaker icon and one with microphone icon. Also there are two lines on front panel (one speaker and one microphone) which seems not working.
I connected a smart phone headset to microphone line. Realtek software detected it as microphone. However, it doesn't use microphone of headset; instead, it uses its speakers as microphone! I have to shout in a really near distance (less than 5cm) to record a weak sound.
Your desktop has two socketsTRS for speakers/headphones - left/right, groundTS for mic - mono, ground [These are sometimes wired with another TRS, but the functionality is the same to the end user]
Although they look very different, speakers and microphones use the very same principle and components to turn electrical signals into sound and back again. A speaker cone can act like a giant microphone diaphragm, and when connected to a recording device or amplifier can be used to capture sound. With very little modification you can make a "speaker mic" to use in your recording and live audio applications.
Connect the microphone cable to your recording device or amplifier. Adjust the input volume of your device while tapping on the speaker cone to verify that the speaker is capturing sound. The output of a speaker microphone will typically be much less than that of a purpose-built microphone.
To make and receive Google Voice calls, use your built-in microphone and speakers or connect external audio devices, such as headsets. Change audio devices before or during a call. If you use a headset for incoming calls on your computer, you can also choose a second device to ring. Then you can hear calls even when you take off your headset.
Bluetooth, 3.5mm (including 3.5mm devices connected through a USB-C adapter), and built-in earpiece speaker and speakerphone. You may be able to use USB audio devices, depending on your mobile device's model and manufacturer.
I normally use it in clamshell mode, and in the past some people have had a hard time hearing me if I try to use the built-in microphone, so I got an external microphone. I was just testing it, and discovered that when I plug it in, the Mac thinks I also have headphones plugged in, and disables the internal speaker.
Since I posted this question, I got a new external monitor that connects to the DisplayPort (Acer EB321HQU). It has its own speaker, so the Sound menu allows me to choose between Internal Speakers and the monitor.
When I plug in the microphone, the Internal Speakers choice changes to Headphone, so it still disables the built-in speakers. But the option to use the monitor as the output device is still available. So I can select that and get audio without a headphone. Plugging in the microphone automatically changes the selection from the monitor to Headphone, but I can easily switch it.
Thanks for the reply. I got your point, but the difference in my use case is, here it is taking the remote audio for the microphone also, but I don't need that. I need to use the microphone of the target computer, and want to hear playback in my client computer. To be precise, Remote audio for the speaker and some local device for microphone. Will that be possible?
Here is what I have right now. The app allows users to choose a speaker and a microphone source. However, whenever I pick a built-in speaker, the app will switch to a built-in microphone. And whenever I pick a Bluetooth microphone, the app will use the Bluetooth speaker. There is no way I can use the Bluetooth microphone and the built-in speaker separately.
If you don't have a headset, microphone or speakers, you can still use Skype to send and receive instant messages. However, to make and receive calls with Skype, you need either a headset with a microphone, or a microphone and speakers.
Hi there! Sometimes when I send voice notes in WhatsApp my friends cant hear whatever I say, I thought that it was WhatsApp's problem until I made a call with the default phone app and turned on the speaker, whenever I speak 'normally', the microphone works correctly but when I use speaker, WhatsApp, Skype or similar apps (even in-game) the mic doesn't work
Lol I got robbed the next day after I posted that comment. I found that this is a common problem, my friend's phone had the same problem so I tried buying a new mic and it didn't work so I decided to replace the whole display with the mic and speaker and it worked perfectly.
Loud speaker mode uses sencondary microphone, in ur case is slow bc the hole might have adhesive... open it up clean the adhesive and with the screw driver poke a biger hole.. that will fix ur problem with low secondary mic.. if the lcd is new... if is and old lcd its just dirty , try changing that mesh completely... best of lucks.
Thread the cable under your shirt and clip the speaker mic between the buttons on the outside your uniform. This way the cord is secured inside the shirt, rather than fully exposed, with just the mic showing.
The speaker mic should be outside attached to the coat, not hidden underneath the coat flap or in a pocket. This ensures the cord is not directly exposed, keeps it secure to your body (not loose), and the PTT and emergency button are easily accessible.
Here at Waveband Communications, we are a two-way radio accessories manufacturer that has supplied speaker microphones to thousands of departments across the nation. Shop our selection of accessories compatible with Motorola, Kenwood, Harris, and more.
But my sound card has only one connector which does both output and input. So when I plug in my microphone, pulseaudio deactivate automatically the speakers (which are seen as "unavailable" in pavucontrol).
Also in 1923, the ribbon microphone was introduced, another electromagnetic type, believed to have been developed by Harry F. Olson, who essentially reverse-engineered a ribbon speaker.[19] Over the years these microphones were developed by several companies, most notably RCA that made large advancements in pattern control, to give the microphone directionality. With television and film technology booming there was a demand for high-fidelity microphones and greater directionality. Electro-Voice responded with their Academy Award-winning shotgun microphone in 1963.
Dynamic microphones use the same dynamic principle as in a loudspeaker, only reversed. A small movable induction coil, positioned in the magnetic field of a permanent magnet, is attached to the diaphragm. When sound enters through the windscreen of the microphone, the sound wave moves the diaphragm. When the diaphragm vibrates, the coil moves in the magnetic field, producing a varying current in the coil through electromagnetic induction. A single dynamic membrane does not respond linearly to all audio frequencies. For this reason, some microphones utilize multiple membranes for the different parts of the audio spectrum and then combine the resulting signals. Combining the multiple signals correctly is difficult; designs that do this are rare and tend to be expensive. On the other hand, there are several designs that are more specifically aimed towards isolated parts of the audio spectrum. The AKG D112, for example, is designed for bass response rather than treble.[26] In audio engineering several kinds of microphones are often used at the same time to get the best results. 2ff7e9595c
Commentaires