October 28, 2007

A comparison of HD Radio, XM Radio and AM radio

Filed under: Podcast, Audio recordings — Scott Redd @ 12:20 am

The following samples represent the following radio formats:

Mainly these samples exist to show what digital HD Radio sounds like on AM. Recently the FCC granted radio stations the privilege to broadcast HD-AM at night. This makes a world of difference for talk radio shows.

According to sources on the web, both HD-AM and XM Talk 165 broadcast around 24 kbps. Their audio samples do sound about the same to the ear.

The compression artifacts on both HD AM and XM radio are quite noticeable at this low bitrate. A strong AM signal on a good radio can rival the digital in overall fidelity. However, the lack of hiss, pop and fade, along with immunity from outside interference makes the digital experience more enjoyable.

About the recordings

The HD Radio recording was made using a Sangean HDR-1 connected via a standard stereo audio cable to my PC’s line-in jack. The recording was made using TotalRcorder as a full, uncompressed wave file and then saved into a 320kbps MP3.

The XM recording was made using an XM Radio Roady2 in a similar recording configuration.

The AM recording was made using a Sony boombox with an analog tuner that gets pretty fair reception and fidelity.

May 26, 2007

Kettle Corn

Filed under: Podcast, Ambient, Audio recordings — Scott Redd @ 11:02 pm

I recorded the sound of kettle corn being made at the 2006 Nebraska Renaissance Faire.

Listen to the MP3 (2.7 MB)

Harp - Gwen Telynores

Filed under: Podcast, Music, Ambient, Audio recordings — Scott Redd @ 10:54 pm

Lincoln, Nebraska musician, Gwen Telynores, plays Brian Boru’s March on the 36 string harp at the 2006 Nebraska Renaissance Faire. Afterwards she talks about the instrument and of using music as therapy to the sick and dying.

Listen to the MP3 (5.1 mb)

September 2, 2005

PeaceFest 2005 - Sandra Brennan - Untouched

Filed under: PeaceFest 2005, Podcast, Audio recordings — Scott Redd @ 10:30 am

Local slam poet Sandra Brennan takes the stage to read some of her poetry. This first offering about the war in Iraq is called Untouched

Link to MP3

August 25, 2005

PeaceFest 2005 - Christie Woods - I Don’t Feel No Ways Tired

Filed under: PeaceFest 2005, Podcast, Music, Audio recordings — Scott Redd @ 10:18 pm

On the stage at PeaceFest 2005 was to be the quartet Nu Beginning, but unfortunately, a death in one of the group member’s family prevented them from performing. Instead, we were treated to an outstanding solo performance by group member Christie Woods.

Listen here to her rendition of the old gospel tune, “I Ain’t No Ways Tired.”

Listen: 4:33, 5.3 mb, 160 kbps MP3

August 16, 2005

PeaceFest 2005 - William Welter and Mike Godfrey, “Swing Low, Sweet Chariot”

Filed under: PeaceFest 2005, Podcast, Music, Audio recordings — Scott Redd @ 10:28 pm

Second on the stage at PeaceFest 2005 was William Welter, an 11 year-old violinist and his teacher (presumably), Mike Godfrey, a Suzuki-method instructor. Their first song was “Swing Low, Sweet Chariot.”

Listen: 4:27, 5.2 mb, 160 kbps MP3

August 13, 2005

PeaceFest 2005 - Sacred Hearts Freedom Choir, “We Are Family”

Filed under: PeaceFest 2005, Podcast, Music, Audio recordings — Scott Redd @ 6:39 pm

The first act to perform at the PeaceFest 2005 was the Sacred Hearts Freedom Choir singing “We Are Family.”

Listen: 3:20, 3.9mb, 160 kbps MP3

July 25, 2005

Wake Up Sleepyhead

Filed under: Podcast, Ambient, Audio recordings — Scott Redd @ 7:32 pm

I need a little something extra to help me get up in the mornings. As the years pass, it seems I have to keep uping the ante, as wimply little beep, beep alarms just don’t do the trick.

A few years ago I found Timex electronic alarm clock that had a built-in sound chip where I could record my own wake-up sounds. My daughter has great fun by randomly changing the recorded message to the strangest of volcalizations.

A few months ago I stumbled across a traditional looking analog alarm clock with bells on the top with a dinger that moves back and forth between them. What makes this particular alarm clock remarkably different is its size. It’s comically huge, easily three times larger that what should be normal. The face of the clock has a small-print advisory:

Warning: This alarm will wake you up.

And that it does. Despite its amuzing proportions, it is quite loud.

However, even with my voice-chip alarm, giant mechanical bell alarm, and my wife’s alarm, I still needed something extra to arouse me around 5:30 a.m. I found that my cell phone has a daily alarm, and by setting it to vibrate, it makes the most annoying buzz on my wooden dresser.

In the following recording, you will hear what it sounds like when all four alarms sound. This recording has not been altered or layered in any way. As a bonus, the microphone captured a peal of thunder during the recording.

Listen: 1:42, 1.6mb, 128 kbps MP3

Keywords: alarm, clock, bell, ringer, vibrate, buzz

July 16, 2005

The Fountain at Concordia University

Filed under: Vacation 2005, Podcast, Ambient, Audio recordings — Scott Redd @ 5:43 pm

The fountain at Concordia University
The campus of the charming Concordia University in Austin, Texas, the host of the 53rd convention of the Esperanto League for North America, has a lovely fountain in its common area.

My daughter was especially attracted to the fountain, as she enjoyed dipping her feet in the water during the hot June days.

This fountain has a webcam trained on it. You can watch it in real time from their site. It was fun to call home from my cell phone and and have my wife and son watch us from the web site.

Listen to the recording I made at the fountain and watch the webcam and you’ll feel like you’re there in person.

Listen 1:01, 1 mb, 128 kbps MP3

Keywords: fountain, water

Ocean waves vs. microphone

Filed under: Vacation 2005, Podcast, Ambient, Audio recordings — Scott Redd @ 2:40 am

On the beach in Galveston
This summer my daughter and I spent a couple of days on the beach at Galveston Island off the Texas coast. While there, I thought it would be a good idea to take my iRiver and microphone into the surf to make an ambient sound recording of the waves.

This worked out pretty well except when a larger than expected wave hit me and nearly ruined the microhone. Yes, that’s me yelling at the end of the recording.

Listen: 2:58, 4.1 mb, 192kbps MP3

Keywords: wind, waves, water, birds, seagulls, splash

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