Need further assistance? Visit the AMD Community forums or official AMD support. Always back up your registry before making manual changes.
. This tool is a staple in the console homebrew and modding communities, particularly for users customizing game files or designing custom themes for the PlayStation Vita and PlayStation 4.
The following table outlines the core functions: at9tool.exe
To convert a standard stereo WAV file into an AT9 file, use the -e (encode) switch: at9tool.exe -e input.wav output.at9 Use code with caution. To Encode with a Specific Bitrate:
| Operation | Command Syntax & Parameters | Description | | :--- | :--- | :--- | | | at9tool -e [INPUT.wav] [OUTPUT.at9] | Takes an input .wav file and outputs a playable .at9 file for PS platforms. | | Encode with Bitrate Control | at9tool -e -br [BITRATE] [INPUT.wav] [OUTPUT.at9] | Encodes a .wav file to .at9 with a specific bitrate (e.g., -br 144 ). | | Decode (Convert from AT9) | at9tool -d [INPUT.at9] [OUTPUT.wav] | Converts an existing .at9 file back into a standard .wav file for editing or listening. | | Looping (Full Song) | at9tool -e -wholeloop [INPUT.wav] [OUTPUT.at9] | Enables seamless looping for the entire audio file, ideal for background music (BGM). | | Looping (Custom Range) | at9tool -e -loop [START_SAMPLE] [END_SAMPLE] [INPUT.wav] [OUTPUT.at9] | Creates a loop between two specific sample numbers, essential for precise game sound design. | Need further assistance
While the table above covers the basics, the tool's real power lies in its more advanced options, which offer fine-grained control over audio properties.
If you're browsing through your computer's processes and stumbled upon at9tool.exe , you might be wondering what this executable file does. In this post, we'll dive into the details of at9tool.exe , its purpose, and what you should know about it. To Encode with a Specific Bitrate: | Operation
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For background music (BGM) that loops, you can specify loop points using the -loop parameter. This requires the start and end sample numbers of the loop. A simpler -wholeloop parameter is also available for files that loop from the very beginning.
ATRAC9 (Adaptive Transform Acoustic Coding 9) is a proprietary audio compression technology developed by Sony. It was designed to provide high-quality audio at low bitrates, making it the standard format for sound effects and background music on the PlayStation 4 and PlayStation Vita platforms. Because it is a proprietary Sony format, standard media players like VLC or Windows Media Player cannot play these files natively. The Purpose of at9tool.exe