Displaying 4 results from an estimated 4 matches for "312hz".
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2018 Oct 25
2
Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
...0.2.1
User comments section follows...
ENCODER=opusenc from opus-tools 0.2-3-gf5f571b
ENCODER_OPTIONS=--bitrate 56 --vbr --comp 5
ALBUM=Test-Sweeps
ARTIST=Audacity
COMMENT=60s logarithmic sweep (0-20kHz): 5s=10Hz, 10s=20Hz, 15s=39Hz, 20
s=78Hz, 25s=156Hz, 30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=
10kHz, 60s=20kHz
COMMENTS=60s logarithmisch
DATE=2016
TITLE=Sweep (0-20kHz at 96kHz) log
TRACKNUMBER=2
Opus stream 1:
Pre-skip: 312
Playback gain: 0 dB
Channels: 1
Original sample rat...
2018 Nov 02
6
Antw: Re: Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
...t the original wav?
I am not sure what Audacity means by a logarithmisch sweep.
Is that a fixed number of Hertz per second (SoX calls that linear)?
Or a fixed number of semitones per second (SoX calls that exponantional)?
(The ogg comment says 5s=10Hz, 10s=20Hz, 15s=39Hz, 20s=78Hz, 25s=156Hz,
30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=10kHz, 60s=20kHz
so it seems the frequency rises logarithmically.)
$ sox -c 1 -r 96k -b 16 -n /tmp/sweep.wav synth 60 sin create 1-20 gain -3
> With Opus I noticed that the file size for 48kHz and 48 kbps
> compared to 96kHz Vorbis at 31kbp...
2018 Nov 01
0
Possible bug in Opus 1.3 (opus-tools-0.2-opus-1.3)?
...t the original wav?
I am not sure what Audacity means by a logarithmisch sweep.
Is that a fixed number of Hertz per second (SoX calls that linear)?
Or a fixed number of semitones per second (SoX calls that exponantional)?
(The ogg comment says 5s=10Hz, 10s=20Hz, 15s=39Hz, 20s=78Hz, 25s=156Hz,
30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=10kHz, 60s=20kHz
so it seems the frequency rises logarithmically.)
$ sox -c 1 -r 96k -b 16 -n /tmp/sweep.wav synth 60 sin create 1-20 gain -3
> With Opus I noticed that the file size for 48kHz and 48 kbps
> compared to 96kHz Vorbis at 31kbp...
2018 Nov 05
0
Antw: Re: Antw: Re: Possible bug in Opus 1.3
...uni‑regensburg.de wrote:
>> >> > Playing with Opus 1.3 I converted a tone sweep with a sample rate of
96kHz
>
>> > (just for fun). Before I had converted that from WAV to FLAC, and to
Vorbis
>
>> > without problems.
>> >>
>> >> 30s=312Hz, 35s=625Hz, 40s=1.25kHz, 45s=2.5kHz, 50s=5kHz, 55s=10kHz,
>> > 60s=20kHz
>> >> so it seems the frequency rises logarithmically.)
>> >>
>> >> $ sox ‑c 1 ‑r 96k ‑b 16 ‑n /tmp/sweep.wav synth 60 sin create 1‑20 gain
‑3
>> >>
>> >>...