Rockbox Technical Forums
Support and General Use => Recording => Topic started by: MarkusJ on February 02, 2011, 02:55:54 AM
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Hi,
I own an Archos Recorder 20 using the build from January 30th 2011.
When I record from the Line In interface sometimes the recorded files are corrupted. I tested one file with MP3Utility and got the following output. Here you can see that every now and then some mp3 frames are corrupted. Does anybody know this misbehaviour and how to resolve it?
Thanks.
Markus
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Processing: test.mp3
Error: Sync error reading frame header 89,784 expected at byte 49,930,980. Approx. time: 39:15 (53.8% through audio).
Previous valid frame header located at byte 49,930,458.
Resync successful - Frame header 89,784 found at byte 57,952,742.
Frame 89,783 (bytes 49,930,458 - 57,952,741) long by 8,021,762 bytes (expected 522 bytes, found 8,022,284 bytes).
Error: Sync error reading frame header 89,785 expected at byte 57,953,473. Approx. time: 45:34 (62.5% through audio).
Previous valid frame header located at byte 57,952,742.
Resync successful - Frame header 89,785 found at byte 63,100,169.
Frame 89,784 (bytes 57,952,742 - 63,100,168) long by 5,146,696 bytes (expected 731 bytes, found 5,147,427 bytes).
Error: Sync error reading frame header 89,786 expected at byte 63,100,900. Approx. time: 49:37 (68.0% through audio).
Previous valid frame header located at byte 63,100,169.
Resync successful - Frame header 89,786 found at byte 65,408,153.
Frame 89,785 (bytes 63,100,169 - 65,408,152) long by 2,307,253 bytes (expected 731 bytes, found 2,307,984 bytes).
Error: Sync error reading frame header 89,787 expected at byte 65,408,335. Approx. time: 51:26 (70.5% through audio).
Previous valid frame header located at byte 65,408,153.
Resync successful - Frame header 89,787 found at byte 78,804,848.
Frame 89,786 (bytes 65,408,153 - 78,804,847) long by 13,396,513 bytes (expected 182 bytes, found 13,396,695 bytes).
Error: Sync error reading frame header 89,788 expected at byte 78,805,030. Approx. time: 61:58 (85.0% through audio).
Previous valid frame header located at byte 78,804,848.
Resync successful - Frame header 89,788 found at byte 79,381,742.
Frame 89,787 (bytes 78,804,848 - 79,381,741) long by 576,712 bytes (expected 182 bytes, found 576,894 bytes).
Error: Sync error reading frame header 89,789 expected at byte 79,381,924. Approx. time: 62:25 (85.6% through audio).
Previous valid frame header located at byte 79,381,742.
Resync successful - Frame header 89,789 found at byte 80,800,502.
Frame 89,788 (bytes 79,381,742 - 80,800,501) long by 1,418,578 bytes (expected 182 bytes, found 1,418,760 bytes).
Error: Sync error reading frame header 89,790 expected at byte 80,801,233. Approx. time: 63:32 (87.1% through audio).
Previous valid frame header located at byte 80,800,502.
Resync successful - Frame header 89,790 found at byte 81,766,698.
Frame 89,789 (bytes 80,800,502 - 81,766,697) long by 965,465 bytes (expected 731 bytes, found 966,196 bytes).
Error: Sync error reading frame header 89,791 expected at byte 81,766,907. Approx. time: 64:17 (88.2% through audio).
Previous valid frame header located at byte 81,766,698.
Resync successful - Frame header 89,791 found at byte 87,149,606.
Frame 89,790 (bytes 81,766,698 - 87,149,605) long by 5,382,699 bytes (expected 209 bytes, found 5,382,908 bytes).
Error: Sync error reading frame header 89,792 expected at byte 87,150,337. Approx. time: 68:31 (94.0% through audio).
Previous valid frame header located at byte 87,149,606.
Resync successful - Frame header 89,792 found at byte 89,280,730.
Frame 89,791 (bytes 87,149,606 - 89,280,729) long by 2,130,393 bytes (expected 731 bytes, found 2,131,124 bytes).
Error: Sync error reading frame header 89,793 expected at byte 89,281,095. Approx. time: 70:12 (96.3% through audio).
Previous valid frame header located at byte 89,280,730.
Resync failed (reached end of file).
Summary: 89,792 total frames processed (1 padded, 89,791 unpadded). Bitrate is VARIABLE.
Bitrate summary (excludes VBR header frame, if found):
56 kbps: 3 frames, 0.0% of total
64 kbps: 1 frames, 0.0% of total
112 kbps: 1 frames, 0.0% of total
128 kbps: 97 frames, 0.1% of total
160 kbps: 60,163 frames, 67.0% of total
192 kbps: 29,522 frames, 32.9% of total
224 kbps: 4 frames, 0.0% of total
Average bitrate (actual): 170.5 kbps over 89,791 audio frames.
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This due to a hardware fault in the archos last I remember. I used to run into this problem all the time back in the days (remember those guys?? ;^) ) until I fixed it by switching to the iRiver H340 (duh..)