---
name: "nhlt-dmic-info"
section: "1"
platform: "linux"
package: "alsa-utils"
version: "1.2.16-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nhlt-dmic-info"
---

# nhlt-dmic-info(1)

dump microphone array information from ACPI NHLT table

## NAME

nhlt-dmic-info - dump microphone array information from ACPI NHLT table

## SYNOPSIS

**nhlt-dmic-info** \[*-option*\]

## DESCRIPTION

**nhlt-dmic-info dumps microphone array information from ACPI NHLT** **table in JSON format.**

## OPTIONS

- *-h* **\|** *--help*

  **Prints the help information.**

- *-f \<file\>* **\|** *--file=\<file\>*

  **Input file with the binary ACPI NHLT table (default is /sys/firmware/acpi/tables/NHLT**).

- *-o \<file\>* \| *--output=\<file\>*

  JSON output file (default is stdout: **-**).

## EXAMPLES

```
nhlt-dmic-info -f nhlt.bin -o dmic.json
```

## BUGS

None known.

## AUTHOR

**nhlt-dmic-info** is by Jaroslav Kysela \<perex@perex.cz\>. This document is by Jaroslav Kysela \<perex@perex.cz\>.