View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000373 | eac3to | bug | public | 2015-12-29 16:39 | 2016-11-24 02:50 |
| Reporter | shr3k | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | new | Resolution | open | ||
| Summary | 0000373: AC3 encoder delay | ||||
| Description | Hi, a some time ago I found that AC3 encoder in eac3to produces some delay in output file. With comparison in Audacity it can be compensated by adding -5ms to command line (produced AC3 will be still 16 samples at 48 kHz behind the original source). | ||||
| Steps To Reproduce | Take some sound file. Encode it to AC3. Decode it to FLAC. Open in Audacity and compare waveform. | ||||
| Tags | No tags attached. | ||||
| eac3to Version | 3.31 | ||||
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All encoders, even commercial ones, produce a delay in output because need initialize the soft and send a initial silence before send the input audio. AC3 encoders send 256 PCM samples of silence, at samplerate 48000 is 5.333... ms A workaround using Aften encoder is use the parameter -pad 0, but don't know a equivalence using ffmpeg. BTW the problem is not related with eac3to but with each encoder. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2015-12-29 16:39 | shr3k | New Issue | |
| 2015-12-29 16:39 | shr3k | File Added: delay.zip | |
| 2016-11-24 02:50 | tebasuna51 | Note Added: 0001503 |
