# Technical references

> * For audio files of less than one minute, use the [Convert Short Speech to Text](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-short-speech-to-text) activity.
* For anything longer than one minute, use the [Convert Speech to Text Asynchronously](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-speech-to-text-asynchronously) activity.
* The maximum limit of audio files that can be converted to text using [Convert Speech to Text Asynchronously](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-speech-to-text-asynchronously) is 480 minutes.
* [Convert Speech to Text Asynchronously](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-speech-to-text-asynchronously) only supports files from Google Cloud Storage. For details, see the Google Cloud Speech-to-Text documentation ([Transcribe long audio files using a Google Cloud Storage file](https://cloud.google.com/speech-to-text/docs/async-recognize#transcribe_long_audio_files_using_a_google_cloud_storage_file)).

* For audio files of less than one minute, use the [Convert Short Speech to Text](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-short-speech-to-text) activity.
* For anything longer than one minute, use the [Convert Speech to Text Asynchronously](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-speech-to-text-asynchronously) activity.
* The maximum limit of audio files that can be converted to text using [Convert Speech to Text Asynchronously](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-speech-to-text-asynchronously) is 480 minutes.
* [Convert Speech to Text Asynchronously](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-speechtotext-convert-speech-to-text-asynchronously) only supports files from Google Cloud Storage. For details, see the Google Cloud Speech-to-Text documentation ([Transcribe long audio files using a Google Cloud Storage file](https://cloud.google.com/speech-to-text/docs/async-recognize#transcribe_long_audio_files_using_a_google_cloud_storage_file)).