MadelineProto/docs/TD_docs/constructors/voice.md

title	description
voice	Describes voice record. Voice must be encoded with Opus codec and must be stored inside Ogg container

Constructor: voice

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Describes voice record. Voice must be encoded with Opus codec and must be stored inside Ogg container

Attributes:

Name	Type	Required	Description
duration	int	Yes	Duration of the voice record in seconds as defined by sender
waveform	bytes	Yes	Waveform representation of the voice in 5-bit format
mime_type	string	Yes	MIME type of a file as defined by sender
voice	file	Yes	File with the voice record

Type: Voice

Example:

$voice = ['_' => 'voice', 'duration' => int, 'waveform' => bytes, 'mime_type' => string, 'voice' => file, ];

Or, if you're into Lua:

voice={_='voice', duration=int, waveform=bytes, mime_type=string, voice=file, }