Sound in PowerPoint

Demonstration

Sound File Inserted in PPT Requires existing file (wav, mp3, wma, or mid) Insert >Movies & Sounds >Sound from file Choose Autoplay or Play when clicked ESC to stop before end NOTE - internal vs external ( = length?)

How to know? External requires the file, too!

Unedited WAV (E) Edited WAV (I) MIDI (E)10 sec, 165K 3:17, 64K

Internal Sound (recorded in PPT)

Recorded initially in PowerPoint Insert / Movies & Sounds / Record Sound

Plays automatically from Transition Settings Can’t reuse outside of PPT (?) Not required on activity

Playing from a CD in PPT

Insert / Movies and Sounds / Play CD Requires the CD in your CD-ROM drive Should play when clicked, but . . . Experiment if you like

A Student Sound Album

My Sound AlbumTask 1.1 My voice by mic

wav, 225K, 10 sec, 22kHz-8 bit-mono Other sounds by mic

wav, 98K, 7 sec, lots of noise

My Sound AlbumTask 3.1 (Converting Formats) CD to wav (3:20)

CD = 28.88MB (calculated) wav = 35.2MB (44K, 16-bit, stereo)

Details (from recording or File Properties)

wav = 9 MB (22K, 8-bit, stereo) wav = 4.1MB (11K, 8-bit, mono)

Sound quality ??

My Sound AlbumConverting Sounds - cont.

Task 3.2 (CD to MP3) Original CD = xxMB (calculated) MP3 (96kbps) = xxMB MP3 (160kbps) = xxMB

My Sound AlbumConverting Sounds - cont.

Task 3.3 (resave in other formats) wav (xxMB) to wma (xxMB) any other conversion you can do

The ___ sounds best, followed by ____, etc.

3.4 Sound Quality Assessment

The ___ sounds best, followed by ____, etc.

My observations: