diff options
Diffstat (limited to 'modules/transcription-config.el')
| -rw-r--r-- | modules/transcription-config.el | 100 |
1 files changed, 82 insertions, 18 deletions
diff --git a/modules/transcription-config.el b/modules/transcription-config.el index 4c7d4943..fd2f4aaa 100644 --- a/modules/transcription-config.el +++ b/modules/transcription-config.el @@ -5,19 +5,23 @@ ;;; Commentary: ;; -;; Audio transcription workflow using OpenAI Whisper (API or local). +;; Audio transcription workflow with multiple backend options. ;; ;; USAGE: ;; In dired: Press `T` on an audio file to transcribe ;; Anywhere: M-x cj/transcribe-audio ;; View active: M-x cj/transcriptions-buffer +;; Switch backend: C-; T b (or M-x cj/transcription-switch-backend) ;; ;; OUTPUT FILES: ;; audio.m4a → audio.txt (transcript) ;; → audio.log (process logs, conditionally kept) ;; ;; BACKENDS: -;; - 'openai-api: Fast cloud transcription (requires OPENAI_API_KEY) +;; - 'openai-api: Fast cloud transcription +;; API key retrieved from authinfo.gpg (machine api.openai.com) +;; - 'assemblyai: Cloud transcription with speaker diarization +;; API key retrieved from authinfo.gpg (machine api.assemblyai.com) ;; - 'local-whisper: Local transcription (requires whisper installed) ;; ;; NOTIFICATIONS: @@ -33,12 +37,14 @@ (require 'dired) (require 'notifications) +(require 'auth-source) ;; ----------------------------- Configuration --------------------------------- -(defvar cj/transcribe-backend 'local-whisper +(defvar cj/transcribe-backend 'assemblyai "Transcription backend to use. - `openai-api': Fast cloud transcription via OpenAI API +- `assemblyai': Cloud transcription with speaker diarization via AssemblyAI - `local-whisper': Local transcription using installed Whisper") (defvar cj/transcription-keep-log-when-done nil @@ -83,9 +89,36 @@ SUCCESS-P indicates whether transcription succeeded." "Return absolute path to transcription script based on backend." (let ((script-name (pcase cj/transcribe-backend ('openai-api "oai-transcribe") + ('assemblyai "assemblyai-transcribe") ('local-whisper "local-whisper")))) (expand-file-name (concat "scripts/" script-name) user-emacs-directory))) +(defun cj/--get-openai-api-key () + "Retrieve OpenAI API key from authinfo.gpg. +Expects entry in authinfo.gpg: + machine api.openai.com login api password sk-... +Returns the API key string, or nil if not found." + (when-let* ((auth-info (car (auth-source-search + :host "api.openai.com" + :require '(:secret)))) + (secret (plist-get auth-info :secret))) + (if (functionp secret) + (funcall secret) + secret))) + +(defun cj/--get-assemblyai-api-key () + "Retrieve AssemblyAI API key from authinfo.gpg. +Expects entry in authinfo.gpg: + machine api.assemblyai.com login api password <key> +Returns the API key string, or nil if not found." + (when-let* ((auth-info (car (auth-source-search + :host "api.assemblyai.com" + :require '(:secret)))) + (secret (plist-get auth-info :secret))) + (if (functionp secret) + (funcall secret) + secret))) + ;; ---------------------------- Process Management ----------------------------- (defun cj/--notify (title message &optional urgency) @@ -125,14 +158,28 @@ Returns the process object." (format "Audio file: %s\n" audio-file) (format "Script: %s\n\n" script))) - ;; Start process - (let ((process (make-process - :name process-name - :buffer (get-buffer-create buffer-name) - :command (list script audio-file) - :sentinel (lambda (proc event) - (cj/--transcription-sentinel proc event audio-file txt-file log-file)) - :stderr log-file))) + ;; Start process with environment + (let* ((process-environment + ;; Add API key to environment based on backend + (pcase cj/transcribe-backend + ('openai-api + (if-let ((api-key (cj/--get-openai-api-key))) + (cons (format "OPENAI_API_KEY=%s" api-key) + process-environment) + (user-error "OpenAI API key not found in authinfo.gpg for host api.openai.com"))) + ('assemblyai + (if-let ((api-key (cj/--get-assemblyai-api-key))) + (cons (format "ASSEMBLYAI_API_KEY=%s" api-key) + process-environment) + (user-error "AssemblyAI API key not found in authinfo.gpg for host api.assemblyai.com"))) + (_ process-environment))) + (process (make-process + :name process-name + :buffer (get-buffer-create buffer-name) + :command (list script audio-file) + :sentinel (lambda (proc event) + (cj/--transcription-sentinel proc event audio-file txt-file log-file)) + :stderr log-file))) ;; Track transcription (push (list process audio-file (current-time) 'running) cj/transcriptions-list) @@ -298,6 +345,21 @@ Uses backend specified by `cj/transcribe-backend'." (kill-process process) (message "Killed transcription process"))) +;;;###autoload +(defun cj/transcription-switch-backend () + "Switch transcription backend. +Prompts with completing-read to select from available backends." + (interactive) + (let* ((backends '(("assemblyai" . assemblyai) + ("openai-api" . openai-api) + ("local-whisper" . local-whisper))) + (current (symbol-name cj/transcribe-backend)) + (prompt (format "Transcription backend (current: %s): " current)) + (choice (completing-read prompt backends nil t)) + (new-backend (alist-get choice backends nil nil #'string=))) + (setq cj/transcribe-backend new-backend) + (message "Transcription backend: %s" choice))) + ;; ------------------------------- Dired Integration --------------------------- (with-eval-after-load 'dired @@ -310,17 +372,19 @@ Uses backend specified by `cj/transcribe-backend'." ;; Transcription keymap (defvar-keymap cj/transcribe-map :doc "Keymap for transcription operations" - "t" #'cj/transcribe-audio - "b" #'cj/transcriptions-buffer + "a" #'cj/transcribe-audio + "b" #'cj/transcription-switch-backend + "v" #'cj/transcriptions-buffer "k" #'cj/transcription-kill) -(keymap-set cj/custom-keymap "t" cj/transcribe-map) +(keymap-set cj/custom-keymap "T" cj/transcribe-map) (with-eval-after-load 'which-key (which-key-add-key-based-replacements - "C-; t" "transcription menu" - "C-; t t" "transcribe audio" - "C-; t b" "show transcriptions buffer" - "C-; t k" "kill transcription")) + "C-; T" "transcription menu" + "C-; T a" "transcribe audio" + "C-; T b" "switch backend" + "C-; T v" "view transcriptions" + "C-; T k" "kill transcription")) (provide 'transcription-config) ;;; transcription-config.el ends here |