Media
音频多段立体声宽度
三段立体声成像：低频收单声道、中频保持聚焦、高频展宽——在四阶 Linkwitz-Riley 分频器背后做精确中/侧矩阵运算，基于 FFmpeg。
file· 文件结果打开工具
快速开始
用三种语言从你的代码中调用此工具。
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/audio-multiband-stereo-width' \
-H 'Content-Type: application/json' \
-d '{"filename":"audioFile.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/zh/api/tools/audio-multiband-stereo-width' \
-F 'audioFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'lowSplitHz=200' \
-F 'highSplitHz=6000' \
-F 'lowWidthPercent=0' \
-F 'midWidthPercent=100' \
-F 'highWidthPercent=150' \
-F 'outputFormat=wav'