Short answer: Yes, but with consequences.
Because AT9Tool.exe is a supporting utility, not a core driver (the core driver is atikmpag.sys), you can safely prevent it from running if you do not use overclocking, fan control, or performance monitoring.
For video games, background music often needs to loop seamlessly. at9tool.exe allows embedding loop points directly into the file header. at9tool.exe
at9tool.exe -e -br 128000 -l 0 -L 1000000 music.wav music.at9
ATRAC9 audio is almost always contained within an RIFF WAV container. This can be confusing because the file extension often remains .wav or is changed to .at9.
The following command-line options are available: Short answer: Yes, but with consequences
at9tool.exe -c -d 123456
Configures the device with ID 123456.
at9tool.exe -t -s data.txt -d device:/path/to/destination
Transfers data from data.txt to the device's /path/to/destination directory. ATRAC9 audio is almost always contained within an
On the PlayStation Vita, RAM is a precious resource (512MB unified). A standard uncompressed CD-quality audio track consumes about 10 MB per minute. By using at9tool.exe to compress audio to 128kbps, that same minute of audio consumes roughly 1 MB. This 10:1 compression ratio is vital for fitting large open-world games onto cartridges.