Software⏱️ 3 min read📅 2026-06-15

How to Fix: ALSA Error: ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card

Troubleshooting ALSA error on Raspberry Pi with microphone setup.

Quick Answer: Check the asound.conf file for correct card and device specifications, and ensure all necessary drivers are installed.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🚀 How to Resolve This Issue
  3. 🎯 Final Words

The ALSA Error: ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card error is encountered by users who are struggling to set up their Raspberry Pi 3B+ and microphone, resulting in a frustrating experience. This issue affects individuals using various operating systems, including Linux-based distributions.

This error can be particularly vexing when trying to record audio from microphones such as the Seeed Respeaker 6mic array or Logitech USB-Mic. Despite having installed all necessary drivers and specifying the correct card and device in the asound.conf file, users continue to encounter this error.

🛑 Root Causes of the Error

  • The primary reason for this error is that the ALSA (Advanced Linux Sound Architecture) driver may not be properly configured or recognized by the system. This can occur due to various factors such as outdated drivers, incorrect configuration files, or issues with the sound card hardware.
  • An alternative cause for this error could be related to the way the audio device is detected and handled by the ALSA driver. In some cases, the device may not be properly enumerated or recognized, leading to the Invalid value for card error.

🚀 How to Resolve This Issue

Updating ALSA Drivers

  1. Step 1: Step 1: Update the ALSA drivers to the latest version using the following command: `sudo apt-get update && sudo apt-get install -y linux-sound-utils`.
  2. Step 2: Step 2: Verify that the ALSA drivers have been updated successfully by running the following command: `lsb_release -a | grep 'linux-sound'`.
  3. Step 3: Step 3: Restart the ALSA sound system to apply the changes: `sudo systemctl restart sound-system`.

Checking and Correcting asound.conf Configuration

  1. Step 1: Step 1: Open the asound.conf file in a text editor using the following command: `nano /etc/asound.conf`.
  2. Step 2: Step 2: Verify that the correct card and device are specified in the asound.conf file. For example, to specify the Seeed Respeaker 6mic array, add the following lines: `card=0,device=1'`, where '0' represents the card number and '1' represents the device number.
  3. Step 3: Step 3: Save and close the asound.conf file.

🎯 Final Words

To resolve the ALSA Error: ALSA lib pcm_hw.c:1713:(_snd_pcm_hw_open) Invalid value for card error, try updating the ALSA drivers to the latest version or checking and correcting the asound.conf configuration. If the issue persists, consider seeking additional assistance from the Linux community or a professional IT technician.

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