Why not attaching file in field name as specified

const { upload, error: checkUploadError, loading: checkUpload, progress, isCompleted } = useFrappeFileUpload();
const handleAudioUpload = async () => {
if (!selectedAudioFile) return;

try {
const res = upload(selectedAudioFile,{isPrivate: false,doctype: 'Doctype',docname: docname,fieldname: 'audio_upload_task'})
console.log('Upload result:', res);
setShowAudioModal(false);
setSelectedAudioFile(null);
alert('Audio uploaded successfully!');
} catch (error) {
console.error('Audio upload error:', error);
}
};