FS#6314 - Reverse stereo on resume with WAV

Attached to Project: Rockbox
Opened by Jared Stafford (jspenguin) - Friday, 10 November 2006, 19:15 GMT
Last edited by Marc Guay (Marc_Guay) - Sunday, 30 March 2008, 22:59 GMT
Task Type Bugs
Category Music playback
Status Closed
Assigned To No-one
Operating System All players
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


When playing a stereo WAV, if playback is stopped and then resumed, the stereo channels are reversed until a seek is performed or the song is changed.
This task depends upon

Closed by  Marc Guay (Marc_Guay)
Sunday, 30 March 2008, 22:59 GMT
Reason for closing:  Out of Date
Additional comments about closing:  The silence is deafening. This bug was never replicated.
Comment by Nils Wallménius (nls) - Friday, 10 November 2006, 22:47 GMT
On which model of player is this happening and how old is your rockbox build (and is it an official build)?
Comment by Jared Stafford (jspenguin) - Saturday, 11 November 2006, 04:30 GMT
Sorry... it's h120, 20061012, daily build.
Comment by Peter D'Hoye (petur) - Wednesday, 15 November 2006, 22:16 GMT
Works fine here with current CVS (20061115) on a h340 (which should be almost identical in terms of code)

I used STOP, not pause...

Can you check again please?
Comment by Peter D'Hoye (petur) - Saturday, 09 December 2006, 18:39 GMT
bug to be closed if OP doesn't confirm
Comment by Michael Sevakis (MikeS) - Sunday, 10 December 2006, 00:27 GMT
It's entirely convievable for the buffer to get out of phase by 2 bytes which would reverse channels. Will investigate asap.
Comment by Peter D'Hoye (petur) - Tuesday, 31 July 2007, 07:42 GMT
Did you check this, Mike?
Comment by Michael Sevakis (MikeS) - Tuesday, 31 July 2007, 11:11 GMT
I'm sitting here trying to do it with a test file and cannot.
Comment by Jeremy (D-Boy) - Tuesday, 14 August 2007, 12:00 GMT
I have had a similar experience with my r13390-070726 on my ipod Nano 1st gen. I was playing two similar files different encoding, classical piece Pachelbel's Canon in D, one was an mp3 and one was a FLAC file. I was doing a blind test to compare my VBR encoding and some reason one time I noticed that the that the audio channels were reversed so I took off my headphones and checked (it was impossible too because the cable is only on the left side). I then went to the channel settings and found something really weird, if I go to stereo the channels seem reversed... I then go to Mono Right and I hear the correct right, and Mono Left and I hear the correct left but when I go to stereo, what I heard on Mono Right was on left and Mono Left on right, hence reversed. This happened after I pressed next a few times with only those 2 tracks to mix which one I wanted to hear. I then stopped the music and restarted one of the files and the channels are correct again. I'll post again when I have reproduced the issue.

I cannot use any newer build for my nano because they are currently broken.
Comment by Steve Bavin (pondlife) - Tuesday, 04 March 2008, 17:50 GMT
Is this still an issue?