Lectures from the 215th Series

Dr Catherine Calderwood 

 

Audio Recordings of Lectures – UPDATED 16th DECEMBER 2016

 

 

 

1. Example

(Note 1 MB denotes million bytes and there are 8 bits to a byte)

President Obama’s inauguration speech: a high quality audio MP3 file.

File size= 6.8 MB, MP3 . Duration 18 minutes.

Note: Scaling to 94 minutes would give a File size of 35.5 MB, MP3 .

 

2. Recording of the Calderwood Lecture

The Calderwood lecture (1.5 hours)was recorded by Janant (94 minutes, 227 MB MP3 ) and separately by George (   110 minutes, 108.4 MB, MP4).

The original files are very large. The web site has 1000 MB of which 668 MB are already used. 12 lectures would occupy 2724 MB which is far too large.

The files may be compressed but that can affect the quality. The following are compressed versions of the Calderwood lecture.

2.1 Calderwood lecture a compressed version of Janant’s recording.

File size =  11.7 MB,  MP3 (compressed by John at 16 bit CBR medium quality)

Run Time 94 minutes.

2.2 Calderwood lecture  a compressed version of George’s recording.

File size =30.4   MB, MP3 (compressed by George)

Run Time 35 minutes (excludes introduction and Q&A session)

Note: scaled to 94 minutes runtime this file would be 81.6 MB.

 

2.3 Calderwood lecture  a heavily compressed version of George’s recording.

File size= 4.2 MB, MP3 (compressed by John from Georges file)

Run Time 35 minutes (excludes introduction and Q&A session)

Note: scaled to 94 minutes runtime this file would be 11.2 MB.

 

3. A You Tube externally stored version of the Calderwood lecture

In preparation

4. Example of Video Streaming

The Ark before Noah: Irving Finkel

(58 minutes from Oriental Society recording via YouTube)

5. Calderwood Lecture uploaded with captions to YOUTUBE