synthesize-speech¶

Description¶

Synthesizes UTF-8 input, plain text or SSML, to a stream of bytes. SSML input must be valid, well-formed SSML. Some alphabets might not be available with all the voices (for example, Cyrillic might not be read at all by English voices) unless phoneme mapping is used. For more information, see How it Works .

Synopsis¶

  synthesize-speech
[--engine <value>]
[--language-code <value>]
[--lexicon-names <value>]
--output-format <value>
[--sample-rate <value>]
[--speech-mark-types <value>]
--text <value>
[--text-type <value>]
--voice-id <value>
<outfile>
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

Options¶

--engine (string)

Specifies the engine (standard or neural ) for Amazon Polly to use when processing input text for speech synthesis. For information on Amazon Polly voices and which voices are available in standard-only, NTTS-only, and both standard and NTTS formats, see Available Voices .

NTTS-only voices

When using NTTS-only voices such as Kevin (en-US), this parameter is required and must be set to neural . If the engine is not specified, or is set to standard , this will result in an error.

Type: String

Valid Values: standard | neural

Required: Yes

Standard voices

For standard voices, this is not required; the engine parameter defaults to standard . If the engine is not specified, or is set to standard and an NTTS-only voice is selected, this will result in an error.

Possible values:

standard

neural

--language-code (string)

Optional language code for the Synthesize Speech request. This is only necessary if using a bilingual voice, such as Aditi, which can be used for either Indian English (en-IN) or Hindi (hi-IN).

If a bilingual voice is used and no language code is specified, Amazon Polly uses the default language of the bilingual voice. The default language for any voice is the one returned by the DescribeVoices operation for the LanguageCode parameter. For example, if no language code is specified, Aditi will use Indian English rather than Hindi.

Possible values:

arb

cmn-CN

cy-GB

da-DK

de-DE

en-AU

en-GB

en-GB-WLS

en-IN

en-US

es-ES

es-MX

es-US

fr-CA

fr-FR

is-IS

it-IT

ja-JP

hi-IN

ko-KR

nb-NO

nl-NL

pl-PL

pt-BR

pt-PT

ro-RO

ru-RU

sv-SE

tr-TR

en-NZ

en-ZA

ca-ES

de-AT

yue-CN

ar-AE

fi-FI

--lexicon-names (list)

List of one or more pronunciation lexicon names you want the service to apply during synthesis. Lexicons are applied only if the language of the lexicon is the same as the language of the voice. For information about storing lexicons, see PutLexicon .

(string)

Syntax:

"string" "string" ...

--output-format (string)

The format in which the returned output will be encoded. For audio stream, this will be mp3, ogg_vorbis, or pcm. For speech marks, this will be json.

When pcm is used, the content returned is audio/pcm in a signed 16-bit, 1 channel (mono), little-endian format.

Possible values:

json

mp3

ogg_vorbis

pcm

--sample-rate (string)

The audio frequency specified in Hz.

The valid values for mp3 and ogg_vorbis are “8000”, “16000”, “22050”, and “24000”. The default value for standard voices is “22050”. The default value for neural voices is “24000”.

Valid values for pcm are “8000” and “16000” The default value is “16000”.

--speech-mark-types (list)

The type of speech marks returned for the input text.

(string)

Syntax:

"string" "string" ...

Where valid values are:
  sentence
  ssml
  viseme
  word

--text (string)

Input text to synthesize. If you specify ssml as the TextType , follow the SSML format for the input text.

--text-type (string)

Specifies whether the input text is plain text or SSML. The default value is plain text. For more information, see Using SSML .

Possible values:

ssml

text

--voice-id (string)

Voice ID to use for the synthesis. You can get a list of available voice IDs by calling the DescribeVoices operation.

Possible values:

Aditi

Amy

Astrid

Bianca

Brian

Camila

Carla

Carmen

Celine

Chantal

Conchita

Cristiano

Dora

Emma

Enrique

Ewa

Filiz

Gabrielle

Geraint

Giorgio

Gwyneth

Hans

Ines

Ivy

Jacek

Jan

Joanna

Joey

Justin

Karl

Kendra

Kevin

Kimberly

Lea

Liv

Lotte

Lucia

Lupe

Mads

Maja

Marlene

Mathieu

Matthew

Maxim

Mia

Miguel

Mizuki

Naja

Nicole

Olivia

Penelope

Raveena

Ricardo

Ruben

Russell

Salli

Seoyeon

Takumi

Tatyana

Vicki

Vitoria

Zeina

Zhiyu

Aria

Ayanda

Arlet

Hannah

Arthur

Daniel

Liam

Pedro

Kajal

Hiujin

Laura

Elin

Ida

Suvi

Ola

Hala

outfile (string) Filename where the content will be saved

Global Options¶

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination.

--output (string)

The formatting style for command output.

json
text
table
yaml
yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

on
off
auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

base64
raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

Output¶

AudioStream -> (streaming blob)

Stream containing the synthesized speech.

ContentType -> (string)

Specifies the type audio stream. This should reflect the OutputFormat parameter in your request.

If you request mp3 as the OutputFormat , the ContentType returned is audio/mpeg.

If you request ogg_vorbis as the OutputFormat , the ContentType returned is audio/ogg.

If you request pcm as the OutputFormat , the ContentType returned is audio/pcm in a signed 16-bit, 1 channel (mono), little-endian format.

If you request json as the OutputFormat , the ContentType returned is application/x-json-stream.

RequestCharacters -> (integer)

Number of characters synthesized.

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