These samples show how to use the Google Cloud Speech API to transcribe audio files, as well as live audio from your computer's microphone.
This repository contains samples that use the Google Cloud Library for PHP to make REST calls as well as contains samples using the more-efficient (though sometimes more complex) GRPC API. The GRPC API also allows streaming requests.
Install the dependencies for this library via composer
$ cd /path/to/php-docs-samples/speech
$ composer install
Configure your project using Application Default Credentials
$ export GOOGLE_APPLICATION_CREDENTIALS=/path/to/credentials.json
To run the Speech Samples:
$ php speech.php
Cloud Speech
Usage:
command [options] [arguments]
Options:
-h, --help Display this help message
-q, --quiet Do not output any message
-V, --version Display this application version
--ansi Force ANSI output
--no-ansi Disable ANSI output
-n, --no-interaction Do not ask any interactive question
-v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
Available commands:
help Displays help for a command
list Lists commands
transcribe Transcribe an audio file using Google Cloud Speech API
transcribe-async Transcribe an audio file asynchronously using Google Cloud Speech API
transcribe-async-gcs Transcribe audio asynchronously from a Storage Object using Google Cloud Speech API
transcribe-async-words Transcribe an audio file asynchronously and print word time offsets using Google Cloud Speech API
transcribe-gcs Transcribe audio from a Storage Object using Google Cloud Speech API
transcribe-stream Transcribe a stream of audio using Google Cloud Speech API
transcribe-words Transcribe an audio file and print word time offsets using Google Cloud Speech API
Once you have a speech sample in the proper format, send it through the speech API using the transcribe command:
php speech.php transcribe test/data/audio32KHz.raw --encoding LINEAR16 --sample-rate 32000
php speech.php transcribe-async test/data/audio32KHz.flac --encoding FLAC --sample-rate 32000
php speech.php transcribe-words test/data/audio32KHz.flac --encoding FLAC --sample-rate 32000
If you get the following error, set the environment variable GCLOUD_PROJECT to your project ID:
[Google\Cloud\Core\Exception\GoogleException]
No project ID was provided, and we were unable to detect a default project ID.
If you have not set a timezone you may get an error from php. This can be resolved by:
- Finding where the php.ini is stored by running php -i | grep 'Configuration File'
- Finding out your timezone from the list on this page: http://php.net/manual/en/timezones.php
- Editing the php.ini file (or creating one if it doesn't exist)
- Adding the timezone to the php.ini file e.g., adding the following line: date.timezone = "America/Los_Angeles"