USB Audio Input for Raspberry Pi Projects
This black mini USB microphone plugs directly into a USB-A host port to capture sound for recording, voice chat and speech-processing projects. The supplier lists Raspberry Pi 5B, 4B and 3B compatibility. Its built-in connector avoids separate microphone cabling and leaves the GPIO header available for other project hardware.
The microphone captures audio; your computer processes it. For a voice-controlled robot or AI assistant, recording software passes that audio to your chosen speech-recognition application. Recognition models, wake-word detection and command handling are not built into or supplied with this microphone.
Pickup and Placement
The supplier specifies 360-degree omnidirectional pickup: it can receive sound from around the capsule instead of requiring a narrow speaking direction. That also means nearby fans, keyboard noise and other voices can enter the recording. Keep the pickup openings clear, place the host near the intended speaker and make a short test recording before relying on it for commands.
The illustrated front-view dimensions are approximately 22 mm long overall and 18 mm across the black housing. These dimensions are not the amount protruding from an inserted USB port. Check case openings and neighboring USB plugs before mounting the microphone in a compact enclosure.
Specifications and Compatibility
| Item | Details |
|---|---|
| Device type | Mini USB microphone / audio input device |
| Host connector | USB-A male, directly attached |
| Pickup pattern | Omnidirectional, supplier-described 360-degree pickup |
| Supplier-listed boards | Raspberry Pi 5B, 4B and 3B |
| Installation | Plug-and-play on a host with compatible USB audio support; input selection may still be needed |
| Approximate front-view size | 22 x 18 mm overall; thickness not specified |
| Color | Black housing with metal USB connector |
Raspberry Pi OS includes USB audio support, so a compatible microphone generally does not need a separate vendor driver. A USB port alone does not guarantee support on every operating system or appliance. Use a data-capable USB-A host port, not a power-only adapter; USB-C-only hosts need a suitable data adapter, not included.
Useful Ways to Use It
- Record speech: capture spoken notes or sample audio in your preferred recording application, then save the recording on the host.
- Prototype voice commands: use the microphone as input for host-side recognition software, then let your program map recognized words to actions. Recognition accuracy depends on software, language support and the recording environment.
- Add voice chat: select it as the microphone in a compatible chat or conferencing application. Listening to the other participant still requires speakers or headphones.
Connect and Check the Input
- Connect the microphone to a USB-A port on the running Raspberry Pi or supported computer.
- Select the USB recording device in the system's input settings or directly in the recording application. On Raspberry Pi OS Lite, choose the capture device in the ALSA-based application rather than looking for a desktop sound panel.
- Allow microphone access if the application requests it. Check that the input is not muted and adjust recording gain while speaking normally.
- Record a short sample and play it back through a separate audio output. If the sample is silent, check the selected capture device before changing speech-recognition settings; if it clips, lower the input gain.
In the Package
1 x black mini USB microphone. A Raspberry Pi/computer, speakers, adapters and speech-recognition software are not included.
FAQ
Does “plug-and-play” mean my application automatically uses it?
No. The operating system can recognize a USB audio device while the application continues using another input. Select the microphone in that application's recording settings.
Is this a microphone array with active noise cancellation?
No array or active-cancellation capability is documented for this product. Omnidirectional describes pickup direction; it does not mean background sound is removed.
Can it recognize speech offline?
The microphone itself does not recognize words. Offline operation depends on the recognition software and model running on your Raspberry Pi or computer; a cloud-based service may instead need internet access.
Can I connect it to GPIO or an analog microphone socket?
No. The supplied interface is USB-A. It is not a GPIO/I2S module or a 3.5 mm analog microphone.
What sample rate and pickup distance does it support?
The supplied specification does not state sample rate, bit depth or a rated pickup distance. Do not assume a particular recording format or far-field performance; confirm those requirements before choosing it for a format-critical application.