For those of you who have been following my podcasts, you will be aware that I recently switched from recording landline to landline to recording Skype calls and the audio quality of the podcasts increased markedly – or so I thought!
However, I received an email from a Margaret this morning which said:
I was wondering if you might be able to increase the Audio Sample Rate when you produce your next audio interview. The latest one with Mr. Ismail is done at 11kHz and my mp3 player won’t work properly unless it is at least 20 kHz. It sounds like really slow, drawn-out speech. The Bit Rate of 32kbps is fine but it’s the Audio Sample Rate (must be 20kHz or higher) that is critical.
Perhaps it is only my weird Creative Zen Micro that has this restrictive specification, in which case please disregard this email. I will make your mp3 into a wav file and then I can listen to it, no problem.
Thank you and this is only a suggestion. No reply is necessary.
I was curious about this – I hadn’t changed, in any way, how I exported the files to mp3 (Audacity: File -> Export to mp3) so what had changed? I checked the settings in Wiretap Pro and Skype – nothing obvious there. Then I go to thinking again.
The new process gets in a stereo file, whereas the landline to landline was mono. I tried converting the stereo file to mono in Audacity and exporting it and Bingo! 22050hz!
I uploaded the new 22khz files and replaced the existing ones for the Steve Rubel interview and the Salim Ismail chat of this morning.
Margaret – once again, thanks for taking the time and effort involved in pointing out this glitch to me – hopefully this makes these interviews even more accessible.