When working with command-line audio conversion, formatting discrepancies can cause errors. Below are the most common failures and how to fix them. Error: "Unsupported Input Format"
If the tool fails in PowerShell, try opening the classic Command Prompt (cmd) .
: Converts standard, uncompressed 16-bit linear PCM Wave ( .wav ) files into the compressed .at9 format required by Sony hardware. at9tool.exe
The tool is designed to work with standard PCM Wave files ( .wav ) as its input and output. This means that if your source audio is in a different format, like .mp3 or .ogg , you must first convert it to a .wav file using another program before you can use it with at9tool.exe . Programs like Audacity are perfect for this intermediary step.
Your input .wav file uses an unsupported codec extension or variable bitrate. : Converts standard, uncompressed 16-bit linear PCM Wave (
The basic syntax follows standard CLI conventions:
-wholeloop : Automatically embeds a global loop container across the entirety of the audio file, signaling the console engine to restart playback seamlessly upon reaching the track's end. Programs like Audacity are perfect for this intermediary
Sets the frequency in Hz. Options include 12000 , 24000 , or 48000 (Default: 48000 ). -wholeloop