JUMP TOMasterchannel APIQuickstartAuthenticationGet Api Access TokenpostFilesUpload FilepostGet FilegetFile operationsGet Master StatusgetInitiate MasterputGet Master ResultsgetGet Preview StatusgetInitiate PreviewputGet Preview ResultsgetGet AnalysisgetWebhooksGet WebhooksgetAdd WebhookpostDelete WebhookdeletePowered by Initiate Previewput https://api.masterchannel.ai/v1/file/{file_ref}/previewInitiate preview of audio mastering for file