Preservation. Session 4: Techniques & Audio. Arienne M. Dwyer University of Kansas. Yoshi Ono University of Alberta

Size: px

Start display at page:

Download "Preservation. Session 4: Techniques & Audio. Arienne M. Dwyer University of Kansas. Yoshi Ono University of Alberta"

Elmer O’Connor’
6 years ago
Views:

1 Session 4: Techniques & Audio University of California at Santa Barbara, June 24-27, Arienne M. Dwyer University of Kansas Yoshi Ono University of Alberta 1

2 Session 4 s focus I. Homework review II. Transcriber practice III. Audio data management - Collecting & storing metadata - Conversion between different formats IV. Storing audio data (DVDs/HDs) 2

3 Homework from Day 3 Open a new transcription (File New) Open audio (Cntrl-A or File-Open Audio) Fill in the headers by clicking on them: Report (=topic); Speaker (name or code) Listen to first unit (phrase or utterance) Stop cursor with [Tab], and type after green dot; then (with cursor at end of text line) hit [Enter] Zoom is Resolution (Alt-9=higher, Alt-0=low) Save your transcription file (...trs). 3

4 What (else) can you do with Transcriber? Time-aligned text in any (L-to-R?) encoding; Extra/Para-linguistic features (laughter; codeswitching) Latin-script example CJK (Asian character) example Speech overlap (see Demo) (mostly) English-language example...demo... 4

5 Tips Loop around a section: Select a section of audio Signal Playback mode Loop on segment.. Play segment; it will loop until you stop it To reset, click Signal Playback Continuous Add speaking turn (i.e. new speaker): Cntl-T Add overlap (Cntl-T; check speech overlap) Revert (...to last saved version; no undo) 5

6 2 levels of transcription 6

7 Using Transcriber data elsewhere Transcriber files are just structured text. Can be opened in any text editor as is Can also be exported to some specialized formats (Childes, LDC, STM); the first could be used to put the data into e.g. Word or Excel Trs files can be imported to ELAN + Toolbox More than one annotation tier can be created: In one line (best separated by a symbol, e.g. ) In parallel trs files (make one, save under new name, fill in morph gloss, save, save under new name, fill in English gloss, etc.) (not recommended) You can use Overlap for two tiers 7

8 III. Audio Data Management a. Collecting & storing metadata b. Conversion between different audio formats 8

9 IV. Data management: keeping records Creating metadata, storage, and retrieval Metadata: data about data Library records; electronic address books; Google maps Could be a bibliographic record Recording circumstances (date, place) Recording itself (device, mike, frequency...) Participants (name, gender, age, profession..) Language code (ISO 639-3) Linguistic example: Salar 9

10 10

11 Gathering metadata (small?) notebook Paper forms Digital (e.g. PDA interface) 11

12 Working with Metadata Put in a structured format, e.g. spreadsheet or database. Put each piece of information in a different column, e.g. villageexonym, villageendonym, Participant1Age, Participant1Sex, Participant1Education Keep all your metadata in this file. 12

13 IIIb. Conversion Conversion between different audio formats In Audacity, need to download lame add-on (google Audacity + lame ) from wav to mp3 (for presentation) from mp3 to wav (for preservation) (the latter conversion will not improve the limitations of an mp3 file; it s better to start out with an uncompressed wave if possible.) 13

14 IV. Data backup and storage/archiving Storing audio data (DVDs/HDs) make multiple copies in case... multiple DVDs/CDs stored separately Gold CD-R/DVD-R, see multiple hard drives (university servers, portable drives, etc.) space issue plan ahead; talk to tech people/archivists data on CD/DVD need to be copied periodically (archival quality media) 14

15 V. Microphone techniques Site assessment (in advance) - acoustics Turn off TVs, fans, florescent lights, fridges, clocks that ring or tick loudly, cell phones If boisterous, you could hang a mic from a rafter with a long cable If the room echoes, hang cloth on wall Using one microphone (and in general) Keep mics close to speaker/singer Use foam filter to prevent pops from mouth Use fur filter for windy conditions Avoid placing mic directly on hard surface Use a tripod and/or put cloth or towel on table 15

16 V: Wrap-up: Q & A Given what we ve learned... Which challenging recording settings do you have (or can you imagine)? What would the class recommend for: Extraneous noise reduction Microphone choice Mic placement 16

Audacity Tutorial C. Stanley

Audacity Tutorial C. Stanley Getting to Know Audacity: Silence Keys Microphone Select Editing Tools Recording Tools Cut, Copy, Paste Undo, Redo Zoom How to Record: Select external microphone. Press the