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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''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 ==
Technical guide for the USB sound card (SSS1629A5) for Raspberry Pi, Jetson Nano, PC, Horizon Sunrise X3 PI and VisionFive2. Covers connections, audio output/capture, volume control, and commands.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL18833 WSAL18833 – USB Sound Card, Driver-Free, for Raspberry Pi / Jetson Nano]

== Technical overview ==
* The sound card uses the SSS1629A5 codec with a built-in microphone and a 4-ohm speaker connection via PH2.0.
* Operating voltage is 5 V; the card is driver-free and is auto-detected as a USB device.
* Speaker drive capability: 2.6 W per channel at 4 ohms BTL.
* On Raspberry Pi, select the device in the audio settings; playback and recording use the USB PnP Audio device.
* On Jetson Nano, choose the device via the speaker/microphone icon in the top right; sliders can be adjusted by dragging.
* On PC, the card appears under Control Panel > Hardware and Sound as a USB microphone and speaker.
* For Horizon Sunrise X3 PI, list devices with lsusb, output devices with aplay -l, input devices with arecord -l; adjust volume with sudo alsamixer.
* Recording example: arecord -Dhw:0,0 -f S16_LE -r16000 -c2 -d 10 -t wav sound_16b_16k.wav; playback: aplay -Dhw:0,0 -f S16_LE -r16000 -t wav sound_16b_16k.wav.
* For VisionFive2, install usbutils and alsa-utils first; then use the same ALSA commands as on Horizon Sunrise X3 PI.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
lsusb
aplay -l
arecord -l
sudo alsamixer
arecord -d 10 test.wav
aplay test.wav
arecord -Dhw:0,0 -f S16_LE -r16000 -c2 -d 10 -t wav sound_16b_16k.wav
aplay -Dhw:0,0 -f S16_LE -r16000 -t wav sound_16b_16k.wav
apt install usbutils
apt install alsa-utils
</syntaxhighlight>

== Notes and version constraints ==
* The exact device position (e.g., hw:0,0) must be read from the output of aplay -l / arecord -l; examples assume specific positions.
* When testing on PC, keep the speaker away from the module to avoid echo.
* If volume is low or there is no sound, a screw inside the case may need adjustment – the exact location must be confirmed visually.
* On Jetson Nano, the microphone slider may be missing depending on system version; this requires manual check in settings.
* Microphone performance depends on ambient noise level; external microphones are not supported.

== Source and revision record ==
* [https://www.waveshare.com/wiki/USB_TO_AUDIO USB TO AUDIO - Waveshare Wiki]
* Source revision: 101942
* Captured: 2026-09-01T03:42:31+00:00
* SHA-256: <code>8fcbd95ca8b6bc524ac8bb10a886a9da9a42c76136f985127e0adc93f04f87ef</code>

WSAL18833 – USB TO AUDIO/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex