/** Output format of the generated audio. Formatted as codec_sample_rate_bitrate. So an mp3 with 22.05kHz sample rate at 32kbs is represented as mp3_22050_32. MP3 with 192kbps bitrate requires you to be subscribed to Creator tier or above. PCM and WAV formats with 44.1kHz sample rate requires you to be subscribed to Pro tier or above. Note that the μ-law format (sometimes written mu-law, often approximated as u-law) is commonly used for Twilio audio inputs. */
export declare const TextToSpeechConvertRequestOutputFormat: {
    readonly Alaw8000: "alaw_8000";
    readonly Mp32205032: "mp3_22050_32";
    readonly Mp32400048: "mp3_24000_48";
    readonly Mp344100128: "mp3_44100_128";
    readonly Mp344100192: "mp3_44100_192";
    readonly Mp34410032: "mp3_44100_32";
    readonly Mp34410064: "mp3_44100_64";
    readonly Mp34410096: "mp3_44100_96";
    readonly Opus48000128: "opus_48000_128";
    readonly Opus48000192: "opus_48000_192";
    readonly Opus4800032: "opus_48000_32";
    readonly Opus4800064: "opus_48000_64";
    readonly Opus4800096: "opus_48000_96";
    readonly Pcm16000: "pcm_16000";
    readonly Pcm22050: "pcm_22050";
    readonly Pcm24000: "pcm_24000";
    readonly Pcm32000: "pcm_32000";
    readonly Pcm44100: "pcm_44100";
    readonly Pcm48000: "pcm_48000";
    readonly Pcm8000: "pcm_8000";
    readonly Ulaw8000: "ulaw_8000";
    readonly Wav16000: "wav_16000";
    readonly Wav22050: "wav_22050";
    readonly Wav24000: "wav_24000";
    readonly Wav32000: "wav_32000";
    readonly Wav44100: "wav_44100";
    readonly Wav48000: "wav_48000";
    readonly Wav8000: "wav_8000";
};
export type TextToSpeechConvertRequestOutputFormat = (typeof TextToSpeechConvertRequestOutputFormat)[keyof typeof TextToSpeechConvertRequestOutputFormat];
