/** Controls the response shape when use_multi_channel is enabled. 'separate' (default) returns one transcript per channel under 'transcripts'. 'combined' merges all channels into a single transcript whose words are sorted by start time, each carrying a 'channel_index' - matching the single-channel response shape. 'combined' requires timestamps (timestamps_granularity must not be 'none') and does not support entity detection or redaction. */
export declare const SpeechToTextConvertRequestMultichannelOutputStyle: {
    readonly Separate: "separate";
    readonly Combined: "combined";
};
export type SpeechToTextConvertRequestMultichannelOutputStyle = (typeof SpeechToTextConvertRequestMultichannelOutputStyle)[keyof typeof SpeechToTextConvertRequestMultichannelOutputStyle];