sendVoice

Use this method to send audio files, if you want Telegram clients to display the file as a playable voice message
For this to work, your audio must be in an .OGG file encoded with OPUS, or in .MP3 format, or in .M4A format (other formats may be sent as Audio or Document)
Bots can currently send voice messages of up to 50 MB in size, this limit may be changed in the future.

Parameters for send-voice
Field Description
chat_id * Unique identifier for the target chat or username of the target channel (in the format @channelusername)
voice * Audio file to send
Pass a file_id as String to send a file that exists on the Telegram servers (recommended), pass an HTTP URL as a String for Telegram to get a file from the Internet, or upload a new one using multipart/form-data
More information on Sending Files ยป
business_connection_id Unique identifier of the business connection on behalf of which the message will be sent
message_thread_id Unique identifier for the target message thread (topic) of the forum; for forum supergroups only
caption Voice message caption, 0-1024 characters after entities parsing
parse_mode Mode for parsing entities in the voice message caption
See formatting options for more details.
caption_entities A JSON-serialized list of special entities that appear in the caption, which can be specified instead of parse_mode
duration Duration of the voice message in seconds
disable_notification Sends the message silently
Users will receive a notification with no sound.
protect_content Protects the contents of the sent message from forwarding and saving
allow_paid_broadcast Pass True to allow up to 1000 messages per second, ignoring broadcasting limits for a fee of 0.1 Telegram Stars per message
The relevant Stars will be withdrawn from the bot's balance
message_effect_id Unique identifier of the message effect to be added to the message; for private chats only
reply_parameters Description of the message to reply to
reply_markup Additional interface options
A JSON-serialized object for an inline keyboard, custom reply keyboard, instructions to remove a reply keyboard or to force a reply from the user