HolidayBuyer's Guide

Camcorders forum

General discussion

I can only hear the left channel on some audio after xfer

by frankzxcv / November 8, 2004 2:07 PM PST

hello, maybe someone can throw some objective light on this,

hardware: sony trv 38 handicam, with both its built in mike, and a sennheiser shotgun mike.

when I am recording with either microphone, I hear fabulous "stereo" sound in the headphones. (that is, the sound is equal in both ears, that's with either mike). same deal when I play the tape back in the camera, it also sounds fine, and balanced in headphones.

WHEN I XFER THE FOOTAGE to my PC using adobe premiere, the sound is okay with anything shot with the camera's built in mike, but the stuff shot with the shotgun mike only has audio in the left channel.

(tapes from other professionally dubbed sources also have fine stereo audio when xferred.)

the only thing I can think of is, this shotgun mike is mono, but when I'm shooting the camera is sending a "mono mix" to both ears, making me think I'm recording in stereo. is this so? or it is something more sinister?


Discussion is locked
You are posting a reply to: I can only hear the left channel on some audio after xfer
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: I can only hear the left channel on some audio after xfer
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
That would be my conclusion. I am assuming that you
by Kiddpeat / November 9, 2004 6:37 AM PST

cannot use both mics at the same time. Thus, your transferred audio has no sound in the right channel. If that's the case, it should be a simple matter to copy the left channel to the right channel, or to send it to both output channels in Adobe Premier.

Collapse -
by frankzxcv / November 11, 2004 12:02 PM PST

yes, well i figured out that

1 this is a mono mike and it only goes to left channel

the camera has an automatic compensator which makes one channel of audio sound like stereo in camera headphones, hence my initial confusion,

but on the tape i really only have audio on one channel.

but since posting i learned of the "copy left channel" feature of premiere that makes it stereo.

one more piece of the puzzle! thanks - fj

Collapse -
more wisdom
by frankzxcv / November 14, 2004 1:40 PM PST
In reply to: wisdom

okay, I have learned that this trv 38 camera has 2 audio modes: 12 bit and 16 bit. in 12 bit, there are really FOUR audio channels (or 2 stereo channels, allowing you to do audio editing in the camera). in 12 bit, the mono mike signal is sent to ONE of the 2 "stereo" channels, which when xferred to dv becomes only one left channel.

when placed in 16 bit mode, there are only 2 channels of audio instead of four. the mono shot gun mike signal is sent to both channels. audio then xfers to PC as stereo, or at least, 2 channels of same mono signal.


Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions

The Samsung RF23M8090SG

One of the best French door fridges we've tested

A good-looking fridge with useful features like an auto-filling water pitcher and a temperature-adjustable "FlexZone" drawer. It was a near-flawless performer in our cooling tests.