Please enter your API key and save to select a default voice.
'; } } // Render Display Model Name field public function cwp_render_display_model_name_field() { $options = get_option( $this->option_name ); $checked = isset( $options['display_model_name'] ) && $options['display_model_name'] === '1' ? 'checked' : ''; ?> Visit Eleven Labs Platform'; } // Get voices from API private function cwp_get_voices( $api_key ) { $response = wp_remote_get( 'https://api.elevenlabs.io/v1/voices', array( 'headers' => array( 'xi-api-key' => $api_key, ), 'timeout' => 60, ) ); if ( is_wp_error( $response ) ) { return $response; } $code = wp_remote_retrieve_response_code( $response ); if ( $code != 200 ) { $body = wp_remote_retrieve_body( $response ); $data = json_decode( $body, true ); $error_message = isset( $data['detail'] ) ? $data['detail'] : 'Error fetching voices from API.'; return new WP_Error( 'api_error', $error_message ); } $body = wp_remote_retrieve_body( $response ); $data = json_decode( $body, true ); if ( ! isset( $data['voices'] ) ) { return new WP_Error( 'api_error', 'Invalid response from API' ); } return $data['voices']; } // Add meta box to post editor public function cwp_add_voice_meta_box() { add_meta_box( 'cwp_elevenlabs_tts_meta_box', 'CodeWP Eleven Labs TTS', array( $this, 'cwp_render_voice_meta_box' ), 'post', 'side', 'default' ); } // Render meta box public function cwp_render_voice_meta_box( $post ) { wp_nonce_field( 'cwp_elevenlabs_tts_meta_box', 'cwp_elevenlabs_tts_meta_box_nonce' ); $options = get_option( $this->option_name ); $api_key = isset( $options['api_key'] ) ? $options['api_key'] : ''; if ( empty( $api_key ) ) { echo 'Please set your API key in the plugin settings.
'; return; } $voices = $this->cwp_get_voices( $api_key ); if ( is_wp_error( $voices ) ) { echo '' . esc_html( $voices->get_error_message() ) . '
'; return; } $selected_voice = get_post_meta( $post->ID, '_cwp_elevenlabs_tts_voice_id', true ); if ( empty( $selected_voice ) ) { $selected_voice = isset( $options['default_voice'] ) ? $options['default_voice'] : ''; } $audio_url = get_post_meta( $post->ID, '_cwp_elevenlabs_tts_audio_url', true ); $model_name = get_post_meta( $post->ID, '_cwp_elevenlabs_tts_model_name', true ); ?>
Audio generated.
Model Used:
post_type ) { return; } wp_enqueue_script( 'jquery' ); wp_add_inline_script( 'jquery', ' jQuery(document).ready(function($){ $(".cwp-generate-audio-button").on("click", function(e){ e.preventDefault(); var button = $(this); var action = button.data("action"); var post_id = ' . $post->ID . '; var voice_id = $("#cwp_elevenlabs_tts_voice_id").val(); var status_div = $(".cwp-audio-generation-status"); status_div.html("
Generating audio, please wait...
"); $.ajax({ url: ajaxurl, type: "POST", data: { action: "cwp_generate_audio", nonce: "' . wp_create_nonce( 'cwp_generate_audio_nonce' ) . '", post_id: post_id, voice_id: voice_id, }, success: function(response) { if (response.success) { status_div.html("Audio generated successfully. Please save/update the post to refresh the meta box.
"); } else { status_div.html("" + response.data + "
"); } }, error: function() { status_div.html("An error occurred while generating audio.
"); } }); }); }); ' ); } // AJAX handler for generating audio public function cwp_ajax_generate_audio() { // Check nonce check_ajax_referer( 'cwp_generate_audio_nonce', 'nonce' ); // Check permissions if ( ! current_user_can( 'edit_posts' ) ) { wp_send_json_error( 'You are not allowed to perform this action.' ); } $post_id = isset( $_POST['post_id'] ) ? intval( $_POST['post_id'] ) : 0; $voice_id = isset( $_POST['voice_id'] ) ? sanitize_text_field( $_POST['voice_id'] ) : ''; if ( ! $post_id || ! $voice_id ) { wp_send_json_error( 'Invalid post ID or voice ID.' ); } $post = get_post( $post_id ); if ( ! $post ) { wp_send_json_error( 'Post not found.' ); } // Save the selected voice update_post_meta( $post_id, '_cwp_elevenlabs_tts_voice_id', $voice_id ); $options = get_option( $this->option_name ); $api_key = isset( $options['api_key'] ) ? $options['api_key'] : ''; if ( empty( $api_key ) ) { wp_send_json_error( 'API key is not set.' ); } $text = strip_tags( $post->post_content ); // Limit text length to 10,000 characters $text = mb_substr( $text, 0, 10000 ); $result = $this->cwp_generate_audio( $api_key, $voice_id, $text, $post_id ); if ( $result && ! is_wp_error( $result ) ) { update_post_meta( $post_id, '_cwp_elevenlabs_tts_audio_url', $result['audio_url'] ); update_post_meta( $post_id, '_cwp_elevenlabs_tts_model_name', $result['model_name'] ); wp_send_json_success( 'Audio generated successfully.' ); } else { $error_message = is_wp_error( $result ) ? $result->get_error_message() : 'Failed to generate audio.'; wp_send_json_error( $error_message ); } } // Generate audio using API private function cwp_generate_audio( $api_key, $voice_id, $text, $post_id ) { $url = 'https://api.elevenlabs.io/v1/text-to-speech/' . $voice_id; $args = array( 'headers' => array( 'xi-api-key' => $api_key, 'Accept' => 'audio/mpeg', 'Content-Type' => 'application/json', ), 'body' => wp_json_encode( array( 'text' => $text, ) ), 'timeout' => 60, ); $response = wp_remote_post( $url, $args ); if ( is_wp_error( $response ) ) { return $response; } $code = wp_remote_retrieve_response_code( $response ); $body = wp_remote_retrieve_body( $response ); if ( $code != 200 ) { // Handle different error response formats $data = json_decode( $body, true ); $error_message = 'Failed to generate audio.'; if ( isset( $data['detail'] ) ) { $error_message = $data['detail']; } elseif ( isset( $data['message'] ) ) { $error_message = $data['message']; } elseif ( isset( $data['data']['message'] ) ) { $error_message = $data['data']['message']; } return new WP_Error( 'api_error', $error_message ); } $audio_data = $body; // Save audio file to media library $upload_dir = wp_upload_dir(); $filename = 'cwp-elevenlabs-' . $post_id . '-' . time() . '.mp3'; $audio_file = $upload_dir['path'] . '/' . $filename; $file_saved = file_put_contents( $audio_file, $audio_data ); if ( $file_saved === false ) { return new WP_Error( 'file_save_error', 'Failed to save audio file.' ); } // Check file type and set proper MIME type $filetype = wp_check_filetype( $filename, null ); // Prepare an array of post data for the attachment. $attachment = array( 'guid' => $upload_dir['url'] . '/' . $filename, 'post_mime_type' => $filetype['type'], 'post_title' => 'CodeWP ElevenLabs Audio for Post ' . $post_id, 'post_content' => '', 'post_status' => 'inherit' ); // Insert the attachment. $attach_id = wp_insert_attachment( $attachment, $audio_file, $post_id ); // Generate the metadata for the attachment, and update the database record. require_once( ABSPATH . 'wp-admin/includes/image.php' ); $attach_data = wp_generate_attachment_metadata( $attach_id, $audio_file ); wp_update_attachment_metadata( $attach_id, $attach_data ); // Get the model name (voice name) $voice_name = $this->cwp_get_voice_name( $api_key, $voice_id ); return array( 'audio_url' => wp_get_attachment_url( $attach_id ), 'model_name' => $voice_name, ); } // Get voice name by voice_id private function cwp_get_voice_name( $api_key, $voice_id ) { $voices = $this->cwp_get_voices( $api_key ); if ( is_wp_error( $voices ) ) { return ''; } foreach ( $voices as $voice ) { if ( $voice['voice_id'] === $voice_id ) { return $voice['name']; } } return ''; } // Append audio to content public function cwp_append_audio_to_content( $content ) { if ( is_singular( 'post' ) ) { $post_id = get_the_ID(); $audio_url = get_post_meta( $post_id, '_cwp_elevenlabs_tts_audio_url', true ); if ( $audio_url ) { $audio_player = do_shortcode( '[audio src="' . esc_url( $audio_url ) . '"]' ); $options = get_option( $this->option_name ); $display_model_name = isset( $options['display_model_name'] ) && $options['display_model_name'] === '1'; $model_name = get_post_meta( $post_id, '_cwp_elevenlabs_tts_model_name', true ); $model_name_html = ''; if ( $display_model_name && $model_name ) { $model_name_html = 'Audio generated using model: ' . esc_html( $model_name ) . '
'; } $content = $audio_player . $model_name_html . $content; } } return $content; } // Add custom column to admin post list public function cwp_add_audio_column( $columns ) { $columns['cwp_audio'] = 'Audio'; return $columns; } // Render custom column content public function cwp_render_audio_column( $column, $post_id ) { if ( 'cwp_audio' === $column ) { $audio_url = get_post_meta( $post_id, '_cwp_elevenlabs_tts_audio_url', true ); if ( $audio_url ) { echo '✓'; } else { echo ''; } } } } new CWP_ElevenLabs_TTS_Plugin();