XHA1 HD Sound? at DVinfo.net

Kevin Lewis · June 25th, 2009, 01:56 PM

When recording in HD is I higher quality of sound being producd as when you shoot in SD? I have only used the camera for HD project and have neve actually shot in SD.

Jim Miller · June 25th, 2009, 02:53 PM

no. Same bit rate In SD or HD

Richard Hunter · June 25th, 2009, 06:41 PM

SD records uncompressed audio, HDV records MPEG1 Layer 2 audio, so SD should be better in this respect.

Richard

Jim Miller · June 26th, 2009, 08:03 AM

I stand corrected. Richard is correct on this.

Taky Cheung · June 26th, 2009, 11:55 AM

Yeah .. HDV sound is 384K MPEG-1 Layer 2

Kevin Lewis · June 26th, 2009, 11:57 AM

Richard & Takey, so does this mean that the sound on SD is actaully better than the sound that gets recorded in HDV?

Taky Cheung · June 26th, 2009, 12:08 PM

I would say so but I don't think people in general will notice the difference.

Richard Hunter · June 26th, 2009, 10:55 PM

I agree with Taky. There's so many other factors that screw up the sound (e.g. mic type, mic placement, hum pickup on cables, background sounds, etc) before it reaches the audio codec, you're unlikely to hear the difference in normal use.

Richard

Don Xaliman · June 27th, 2009, 02:28 AM

Once you get a perfect sound on HDV you could then move up/down and make the sound perfecter in DV.... but... the picture?
You can fine tune the sound onto HDV with experiments in sending volume and listening for compression effects in auto level mode... or ride your levels hot, but not too hot in manual mode.

Terry Martin · June 27th, 2009, 02:36 AM

As an old audio guy new to video, I did a lot of audio testing when I first got my XH A1. (Shooting 1080i HDV)

I initially recorded live events with AKG 451 mikes into the A1, and an assortment of other mikes into 24/48K PCM digital recorders with Apogee MiniMe Mike pre’s/ adc’s. (even tried 24/96K).

With a wide range of mikes, I compared numerous stereo pair sound sources in a studio, again based on Apogee DAC’s and Genelec speakers. To my great surprise, I could not find any quality difference between any of the high end recording solutions and just two mikes plugged into the XH A1! At that point I stopped lugging around a lot of excess audio gear.

I now record into a Sound Devices 788T, but only for multi track capability.

June 25th, 2009, 01:56 PM	#1
Kevin Lewis Major Player Join Date: Feb 2009 Location: Philadelphia, pa Posts: 705	XHA1 HD Sound? When recording in HD is I higher quality of sound being producd as when you shoot in SD? I have only used the camera for HD project and have neve actually shot in SD.

June 26th, 2009, 11:55 AM	#5
Taky Cheung Inner Circle Join Date: May 2007 Location: Los Angeles, USA Posts: 2,114	Yeah .. HDV sound is 384K MPEG-1 Layer 2 __________________ LA Color Pros Blog RODE Authorized Reseller . Comer LED Camera Lights . TakyBox HTML5 Menu Generator

June 26th, 2009, 12:08 PM	#7
Taky Cheung Inner Circle Join Date: May 2007 Location: Los Angeles, USA Posts: 2,114	I would say so but I don't think people in general will notice the difference. __________________ LA Color Pros Blog RODE Authorized Reseller . Comer LED Camera Lights . TakyBox HTML5 Menu Generator

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June 25th, 2009, 02:53 PM	#2
Jim Miller Major Player Join Date: Jan 2007 Location: Tampa,Florida Posts: 236	no. Same bit rate In SD or HD

June 25th, 2009, 06:41 PM	#3
Richard Hunter Trustee Join Date: Dec 2004 Location: Lipa City Batangas, Philippines Posts: 1,110	SD records uncompressed audio, HDV records MPEG1 Layer 2 audio, so SD should be better in this respect. Richard

June 26th, 2009, 08:03 AM	#4
Jim Miller Major Player Join Date: Jan 2007 Location: Tampa,Florida Posts: 236	I stand corrected. Richard is correct on this.

June 26th, 2009, 11:57 AM	#6
Kevin Lewis Major Player Join Date: Feb 2009 Location: Philadelphia, pa Posts: 705	Richard & Takey, so does this mean that the sound on SD is actaully better than the sound that gets recorded in HDV?

June 26th, 2009, 10:55 PM	#8
Richard Hunter Trustee Join Date: Dec 2004 Location: Lipa City Batangas, Philippines Posts: 1,110	I agree with Taky. There's so many other factors that screw up the sound (e.g. mic type, mic placement, hum pickup on cables, background sounds, etc) before it reaches the audio codec, you're unlikely to hear the difference in normal use. Richard

June 27th, 2009, 02:28 AM	#9
Don Xaliman Regular Crew Join Date: Sep 2008 Location: Vancouver BC Posts: 96	Once you get a perfect sound on HDV you could then move up/down and make the sound perfecter in DV.... but... the picture? You can fine tune the sound onto HDV with experiments in sending volume and listening for compression effects in auto level mode... or ride your levels hot, but not too hot in manual mode.

June 27th, 2009, 02:36 AM	#10
Terry Martin Regular Crew Join Date: May 2007 Location: Palo Alto, California Posts: 100	As an old audio guy new to video, I did a lot of audio testing when I first got my XH A1. (Shooting 1080i HDV) I initially recorded live events with AKG 451 mikes into the A1, and an assortment of other mikes into 24/48K PCM digital recorders with Apogee MiniMe Mike pre’s/ adc’s. (even tried 24/96K). With a wide range of mikes, I compared numerous stereo pair sound sources in a studio, again based on Apogee DAC’s and Genelec speakers. To my great surprise, I could not find any quality difference between any of the high end recording solutions and just two mikes plugged into the XH A1! At that point I stopped lugging around a lot of excess audio gear. I now record into a Sound Devices 788T, but only for multi track capability.