Make FAST REWIND and FAST FORWARD to work with increasing, not static speed

[mixxxbot]

Reported by: esbrandt
Date: 2011-05-31T15:07:13Z
Status: Confirmed
Importance: Wishlist
Launchpad Issue: lp790737

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Currently invoking FAST REWIND [back] or FAST FORWARD [fwd] makes the track to suddenly change speed. This can lead to unwanted effects if the channel is currently playing and not very elegant overall.

I propose to change the behavior of said controls to change the speed with a fixed ramping value of 1000 ms. In this time the tracks speed can go from current speed to target speed (x4?) . No more abrupt speed changes. It would also allow to use [back] and [fwd] for small corrections if beatmatching. This is useful cause the keys are very close together on the keyboard.

Additionally i could think of increasing the speed even more if the [back] or [fwd] control is continuously active for a certain period thereby shortening the time required for seeking ( useful for very long tracks).

[mixxxbot]

Commented by: rryan
Date: 2011-05-31T15:25:36Z

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This is a general problem with Mixxx I think -- there are many cases where
we would potentially use a discontinuous or abrupt change in velocity. I
think we need to rethink how the engine's rate works -- possibly a better
setup would be if we did something a little more physically inspired, where
we control the acceleration of the deck so the velocity is smoother. I'm not
sure what the best answer is but I've been meaning to whip up a test of
something like this.

On Tue, May 31, 2011 at 11:07 AM, jus wrote:

Public bug reported:

Currently invoking FAST REWIND [back] or FAST FORWARD [fwd] makes the
track to suddenly change speed. This can lead to unwanted effects if the
channel is currently playing and not very elegant overall.

I propose to change the behavior of said controls to change the speed
with a fixed ramping value of 1000 ms. In this time the tracks speed can
go from current speed to target speed (x4?) . No more abrupt speed
changes. It would also allow to use [back] and [fwd] for small
corrections if beatmatching. This is useful cause the keys are very
close together on the keyboard.

Additionally i could think of increasing the speed even more if the
[back] or [fwd] control is continuously active for a certain period
thereby shortening the time required for seeking ( useful for very long
tracks).

** Affects: mixxx
Importance: Wishlist
Status: New

** Changed in: mixxx
Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/790737

Title:
Make FAST REWIND and FAST FORWARD to work with increasing, not static
speed

[mixxxbot]

Commented by: pwhelan
Date: 2011-05-31T17:57:29Z

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Temporary pitch change already have ramping. It needs to be enabled in preferences before it works though. Something similar could be done for fast forward and reverse.