Best Practice is an interesting open source freeware variation on this theme.

"BestPractice is a musician's practice tool, to slow down or speed up music, either from an MP3 file or directly from a CD. Ordinarily the sound is distorted when slowed down our sped up - you get the effect like when playing a 33 rpm record on 45 rpm speed (remember the Chipmunks?). BestPractice tries to correct this, so you can slow down and speed up music, while keeping the original pitch. It is also possible to change the pitch of the music without affecting its tempo. Play along with for instance Eb tuned guitars without retuning your own, or slow down that high-speed guitar solo on a CD that you like to learn."

caulbox  –  14 years ago  –  Βρήκατε αυτό το σχόλιο χρήσιμο? ναι | όχι (+53)

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Unfortunately, this program increases pitch in order to increase tempo/playback speed, so playing at double speed gives the reader a squeaky voice. Also, it cannot play AAC (m4a) files.

GOM Player is freeware that can remember position of previously played files and increase tempo independent of pitch, but it too cannot play AAC. FWIW, Windows Media Player 11 or 12 does a very good job of adjusting playback speed (sound is least distorted, IMO), but it cannot remember playback position. If Angel's Vox used WMP's engine to playback files, this GOTD could be a very nice program indeed.

Seth  –  14 years ago  –  Βρήκατε αυτό το σχόλιο χρήσιμο? ναι | όχι (+39)

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I have much language learning material, and I notice that this app has a 'slow down' option. This will be excellent for those learning a new language and wanting to slow down the speech to properly digest it. It can load MP3, WAV and OGG. Excellent straight forward operation, a fine addition for my Audio files.

Terry  –  14 years ago  –  Βρήκατε αυτό το σχόλιο χρήσιμο? ναι | όχι (+37)

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It's a simple audio player, but it works fine on XP sp3, and the registry remains clean after uninstall it

Robert P  –  14 years ago  –  Βρήκατε αυτό το σχόλιο χρήσιμο? ναι | όχι (+29)

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Must have been a very useful software if it can maintain the pitch of the voice or music when one speed up or slow down the play speed. Funny, how can one feel comfortable in speeding up a speech when the speaker starts to sound funny, just like the voice of cartoon characters, while slowing it down makes it sounds like horror movies.
If one has no intention of either hastening or slowing down the tempo, then he will surely find this software useful, in picking up from where one left off listening.

But for me, to be able to speed up or slow down the speed without alterating the pitch is most important. I have been using a software, SPT-667 Phase Trainer, (not a freeware though) for quite some time now, and without much features as this one, but is able to slow down tempo without changing the pitch. It can also change the pitch without changing the tempo. So, when I hear a slow speaker, I increase the tempo, saving me a lot of time. For very fast speaker, I slow it down. I also learn music by slowing the accompaniment, and gradual increasing it as I advance. Also, when I do not like the pitch of the speaker, I adjust the pitch accordingly to please my ear. It can even change a male to female voice, and vice versa. One of the most useful software I use all year round.

I hope the developer add this feature, and it will make this software a gem.

Andrew  –  14 years ago  –  Βρήκατε αυτό το σχόλιο χρήσιμο? ναι | όχι (+24)

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