Zum Inhalt springen

WSAL19491 – Audio Card for Jetson Nano/en

Aus JW Tech Wiki

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The audio card is a USB sound card with built-in microphone and speaker header that connects via the USB bus and operates without drivers. It supports stereo capture and playback and is designed for use with the Jetson Nano developer kit.

Related products at JW Tech

Technical overview

  • Audio codec used: SSS1629A5 over the USB bus, driver-free and plug-and-play.
  • Two MEMS microphones enable stereo recording with improved sound quality.
  • A 3.5 mm jack is provided for connecting headphones.
  • A dual-channel speaker header allows direct driving of an 8 Ω / 5 W speaker, with a volume adjustment knob.
  • Power voltage is 5 V; the control port is USB.
  • Hardware connection steps: connect the card to the Jetson Nano via a USB adapter, attach the matching speaker to the header, then power on the device.
  • Detection check: `aplay -l` and `arecord -l` list available playback and capture devices; the card appears as “USB PnP Audio Device” (card 2, device 0).
  • Example capture: `arecord -D plughw:2,0 -f S16_LE -r 48000 -c 2 test.wav` saves a stereo WAV file at 48 kHz, 16-bit little-endian; stop with Ctrl+C.
  • Example playback: `aplay -D hw:2,0 test.wav` plays back the recorded file.
  • Volume is adjusted with `sudo alsamixer`; press F6 to select the audio device if the USB card is not set as default.

Commands and examples – verify before use:  

aplay -l
arecord -l
arecord -D plughw:2,0 -f S16_LE -r 48000 -c 2 test.wav
aplay -D hw:2,0 test.wav
sudo alsamixer

Notes and version constraints

  • The source material comes from a supplier and contains marketing and navigation content that has been removed from this technical overview.
  • The exact device ID (e.g., card 2) may vary depending on system configuration; verify the actual card number using `aplay -l` or `arecord -l` before running commands.
  • Setting the default audio device differs between Jetson Nano variants (4 GB vs. 2 GB); choose the correct GUI procedure according to the installed variant.
  • The provided demo codes require a personal Google Assistant project, OAuth client-ID JSON, and a registered device model; these context data are not fully specified in the source.
  • Snowboy is no longer actively maintained by the original project and its website is closed; training custom voice models requires a third-party platform.
  • All version-sensitive steps, missing context data, and items requiring human confirmation should be verified before implementation.

Source and revision record

Abgerufen von „https://wiki.jw-tech.eu/index.php?title=WSAL19491_–_Audio_Card_for_Jetson_Nano/en&oldid=1586“